1
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Moroyoqui‐Parra MA, Molero G, Reynolds MP, Gaju O, Murchie EH, Foulkes MJ. Interaction of planting system with radiation-use efficiency in wheat lines. Crop Sci 2024; 64:314-332. [PMID: 38516200 PMCID: PMC10952436 DOI: 10.1002/csc2.21115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 09/22/2023] [Indexed: 03/23/2024]
Abstract
Radiation-use efficiency (RUE) is an important trait for raising biomass and yield potential in plant breeding. However, the effect of the planting system (PS) on genetic variation in RUE has not been previously investigated. Our objectives were to quantify genetic variation in RUE, biomass and grain yield in raised-bed and flat-basin planting systems, and associations with canopy-architecture traits (flag-leaf angle and curvature). Twelve spring wheat (Triticum aestivum L.) cultivars were evaluated under irrigated conditions for 3 years in North West Mexico using raised-bed and flat-basin planting systems. Canopy architecture traits were measured at booting and anthesis + 7 days. Grain yield (10.6%), biomass (7.6%), and pre-grain-filling RUE (9.7%) were higher in raised beds than flat basins, while a significant planting system × genotype interaction was found for grain yield. Genetic variation in pre-grain-filling RUE was associated with biomass and grain yield in beds and basins. In flat basins, higher pre-grain-filling RUE was correlated with a more upright flag-leaf angle but not in raised beds. In raised beds, cultivars with less upright flag-leaf angle had greater fractional light interception pre-anthesis. Taller semi-dwarf cultivars intercepted relatively more radiation in the beds than the flats before anthesis, consistent with the taller cultivars showing relatively greater increases in yield in beds compared to flats. Our results indicated that the evaluation of genotypes for RUE and biomass in wheat breeding should take into account planting systems to capture genotype × PS effects. In addition, the results demonstrate how flag-leaf angle has a different effect depending on the planting system.
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Affiliation(s)
- Marcela A. Moroyoqui‐Parra
- Division of Plant and Crop Science, School of BiosciencesUniversity of NottinghamLeicestershireUK
- Global Wheat ProgramInternational Maize and Wheat Improvement Center (CIMMYT)TexcocoMexico
| | - Gemma Molero
- Global Wheat ProgramInternational Maize and Wheat Improvement Center (CIMMYT)TexcocoMexico
- KWS Momont RechercheMons‐en‐PeveleFrance
| | - Matthew P. Reynolds
- Global Wheat ProgramInternational Maize and Wheat Improvement Center (CIMMYT)TexcocoMexico
| | - Oorbessy Gaju
- Lincoln Institute for Agri‐Food and TechnologyUniversity of LincolnLincolnUK
| | - Erik H. Murchie
- Division of Plant and Crop Science, School of BiosciencesUniversity of NottinghamLeicestershireUK
| | - Michael John Foulkes
- Division of Plant and Crop Science, School of BiosciencesUniversity of NottinghamLeicestershireUK
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2
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McAusland L, Acevedo‐Siaca LG, Pinto RS, Pinto F, Molero G, Garatuza‐Payan J, Reynolds MP, Murchie EH, Yepez EA. Night-time warming in the field reduces nocturnal stomatal conductance and grain yield but does not alter daytime physiological responses. New Phytol 2023; 239:1622-1636. [PMID: 37430457 PMCID: PMC10952344 DOI: 10.1111/nph.19075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/11/2023] [Indexed: 07/12/2023]
Abstract
Global nocturnal temperatures are rising more rapidly than daytime temperatures and have a large effect on crop productivity. In particular, stomatal conductance at night (gsn ) is surprisingly poorly understood and has not been investigated despite constituting a significant proportion of overall canopy water loss. Here, we present the results of 3 yr of field data using 12 spring Triticum aestivum genotypes which were grown in NW Mexico and subjected to an artificial increase in night-time temperatures of 2°C. Under nocturnal heating, grain yields decreased (1.9% per 1°C) without significant changes in daytime leaf-level physiological responses. Under warmer nights, there were significant differences in the magnitude and decrease in gsn , values of which were between 9 and 33% of daytime rates while respiration appeared to acclimate to higher temperatures. Decreases in grain yield were genotype-specific; genotypes categorised as heat tolerant demonstrated some of the greatest declines in yield in response to warmer nights. We conclude the essential components of nocturnal heat tolerance in wheat are uncoupled from resilience to daytime temperatures, raising fundamental questions for physiological breeding. Furthermore, this study discusses key physiological traits such as pollen viability, root depth and irrigation type may also play a role in genotype-specific nocturnal heat tolerance.
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Affiliation(s)
- Lorna McAusland
- Division of Plant and Crop Sciences, School of BiosciencesUniversity of NottinghamLeicestershireLE12 5RDUK
| | - Liana G. Acevedo‐Siaca
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - R. Suzuky Pinto
- Instituto Tecnológico de Sonora (ITSON)5 de Febrero 818 Sur, Col. Centro, Cd. Obregón, SonoraMéxicoCP 85000Mexico
| | - Francisco Pinto
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - Gemma Molero
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - Jaime Garatuza‐Payan
- Instituto Tecnológico de Sonora (ITSON)5 de Febrero 818 Sur, Col. Centro, Cd. Obregón, SonoraMéxicoCP 85000Mexico
| | - Matthew P. Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - Erik H. Murchie
- Division of Plant and Crop Sciences, School of BiosciencesUniversity of NottinghamLeicestershireLE12 5RDUK
| | - Enrico A. Yepez
- Instituto Tecnológico de Sonora (ITSON)5 de Febrero 818 Sur, Col. Centro, Cd. Obregón, SonoraMéxicoCP 85000Mexico
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3
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Romero-Reyes A, Hernandez-Leon SG, Leyva-Carrillo L, Yepiz-Plascencia G, Reynolds MP, Paul MJ, Heuer S, Valenzuela-Soto EM. An efficient triose phosphate synthesis and distribution in wheat provides tolerance to higher field temperatures. Biochem J 2023; 480:1365-1377. [PMID: 37589484 DOI: 10.1042/bcj20230117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 08/18/2023]
Abstract
High temperatures in the field hinder bread wheat high-yield production, mainly because of the adverse effects of heat over photosynthesis. The Yaqui Valley, the main wheat producer region in Mexico, is a zone prone to have temperatures over 30°C. The aim of this work was to test the flag leaf photosynthetic performance in 10 bread wheat genotypes grown under high temperatures in the field. The study took place during two seasons (2019-2020 and 2020-2021). In each season, control seeds were sown in December, while heat-stressed were sown in late January to subject wheat to heat stress (HS) during the grain-filling stage. HS reduced Grain yield from 20 to 58% in the first season. HS did not reduce chlorophyll content and light-dependent reactions were unaffected in any of the tested genotypes. Rubisco, chloroplast fructose 1,6-biphosphatase (FBPase), and sucrose phosphate synthase (SPS) activities were measured spectrophotometrically. Rubisco activity did not decrease under HS in any of the genotypes. FBPase activity was reduced by HS indicating that triose phosphate flux to starch synthesis was reduced, while SPS was not affected, and thus, sucrose synthesis was maintained. HS reduced aerial biomass in the 10 chosen genotypes. Genotypes SOKWB.1, SOKWB.3, and BORLAUG100 maintained their yield under HS, pointing to a potential success in their introduction in this region for breeding heat-tolerant bread wheat.
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Affiliation(s)
- Andrea Romero-Reyes
- Centro de Investigación en Alimentación y Desarrollo A.C., G.E. Astiazarán Rosas 46, Hermosillo 83304, Sonora, México
| | - Sergio G Hernandez-Leon
- Centro de Investigación en Alimentación y Desarrollo A.C., G.E. Astiazarán Rosas 46, Hermosillo 83304, Sonora, México
| | - Lilia Leyva-Carrillo
- Centro de Investigación en Alimentación y Desarrollo A.C., G.E. Astiazarán Rosas 46, Hermosillo 83304, Sonora, México
| | - Gloria Yepiz-Plascencia
- Centro de Investigación en Alimentación y Desarrollo A.C., G.E. Astiazarán Rosas 46, Hermosillo 83304, Sonora, México
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Carretera México-Veracruz, Km. 45, El Batán, 56237 Texcoco, México
| | - Matthew J Paul
- Department of Plant Science, Rothamsted Research, Harpenden AL5 2JQ, U.K
| | - Sigrid Heuer
- Pre-Breeding Department, National Institute of Agricultural Botany (NIAB), Cambridge, U.K
| | - Elisa M Valenzuela-Soto
- Centro de Investigación en Alimentación y Desarrollo A.C., G.E. Astiazarán Rosas 46, Hermosillo 83304, Sonora, México
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4
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Wang J, Li C, Li L, Gao L, Hu G, Zhang Y, Reynolds MP, Zhang X, Jia J, Mao X, Jing R. DIW1 encoding a clade I PP2C phosphatase negatively regulates drought tolerance by de-phosphorylating TaSnRK1.1 in wheat. J Integr Plant Biol 2023; 65:1918-1936. [PMID: 37158049 DOI: 10.1111/jipb.13504] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/05/2023] [Accepted: 05/08/2023] [Indexed: 05/10/2023]
Abstract
Drought seriously impacts wheat production (Triticum aestivum L.), while the exploitation and utilization of genes for drought tolerance are insufficient. Leaf wilting is a direct reflection of drought tolerance in plants. Clade A PP2Cs are abscisic acid (ABA) co-receptors playing vital roles in the ABA signaling pathway, regulating drought response. However, the roles of other clade PP2Cs in drought tolerance, especially in wheat, remain largely unknown. Here, we identified a gain-of-function drought-induced wilting 1 (DIW1) gene from the wheat Aikang 58 mutant library by map-based cloning, which encodes a clade I protein phosphatase 2C (TaPP2C158) with enhanced protein phosphatase activity. Phenotypic analysis of overexpression and CRISPR/Cas9 mutant lines demonstrated that DIW1/TaPP2C158 is a negative regulator responsible for drought resistance. We found that TaPP2C158 directly interacts with TaSnRK1.1 and de-phosphorylates it, thus inactivating the TaSnRK1.1-TaAREB3 pathway. TaPP2C158 protein phosphatase activity is negatively correlated with ABA signaling. Association analysis suggested that C-terminal variation of TaPP2C158 changing protein phosphatase activity is highly correlated with the canopy temperature, and seedling survival rate under drought stress. Our data suggest that the favorable allele with lower phosphatase activity of TaPP2C158 has been positively selected in Chinese breeding history. This work benefits us in understanding the molecular mechanism of wheat drought tolerance, and provides elite genetic resources and molecular markers for improving wheat drought tolerance.
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Affiliation(s)
- Jingyi Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chaonan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Long Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lifeng Gao
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ge Hu
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yanfei Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center, Texcoco, 56237, Mexico
| | - Xueyong Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jizeng Jia
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xinguo Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ruilian Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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5
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Zhang Y, Wang J, Li Y, Zhang Z, Yang L, Wang M, Zhang Y, Zhang J, Li C, Li L, Reynolds MP, Jing R, Wang C, Mao X. Wheat TaSnRK2.10 phosphorylates TaERD15 and TaENO1 and confers drought tolerance when overexpressed in rice. Plant Physiol 2023; 191:1344-1364. [PMID: 36417260 PMCID: PMC9922405 DOI: 10.1093/plphys/kiac523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Wheat (Triticum aestivum) is particularly susceptible to water deficit at the jointing stage of its development. Sucrose non-fermenting 1-related protein kinase 2 (SnRK2) acts as a signaling hub in the response to drought stress, but whether SnRK2 helps plants cope with water deficit via other mechanisms is largely unknown. Here, we cloned and characterized TaSnRK2.10, which was induced by multiple abiotic stresses and phytohormones. Ectopic expression of TaSnRK2.10 in rice (Oryza sativa) conferred drought tolerance, manifested by multiple improved physiological indices, including increased water content, cell membrane stability, and survival rates, as well as decreased water loss and accumulation of H2O2 and malonaldehyde. TaSnRK2.10 interacted with and phosphorylated early responsive to dehydration 15 (TaERD15) and enolase 1 (TaENO1) in vivo and in vitro. TaERD15 phosphorylated by TaSnRK2.10 was prone to degradation by the 26S proteasome, thereby mitigating its negative effects on drought tolerance. Phosphorylation of TaENO1 by TaSnRK2.10 may account for the substantially increased levels of phosphoenolpyruvate (PEP), a key metabolite of primary and secondary metabolism, in TaSnRK2.10-overexpressing rice, thereby enhancing its viability under drought stress. Our results demonstrate that TaSnRK2.10 not only regulated stomatal aperture and the expression of drought-responsive genes, but also enhanced PEP supply and promoted the degradation of TaERD15, all of which enhanced drought tolerance.
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Affiliation(s)
- Yanfei Zhang
- State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450000, China
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jingyi Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuying Li
- State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450000, China
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zihui Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Agronomy, Gansu Agricultural University, Gansu 730070, China
| | - Lili Yang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Min Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yining Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Agronomy, Gansu Agricultural University, Gansu 730070, China
| | - Jie Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Chaonan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Long Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | | | - Ruilian Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chenyang Wang
- State Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou 450000, China
| | - Xinguo Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Agronomy, Gansu Agricultural University, Gansu 730070, China
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6
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Garcia A, Gaju O, Bowerman AF, Buck SA, Evans JR, Furbank RT, Gilliham M, Millar AH, Pogson BJ, Reynolds MP, Ruan Y, Taylor NL, Tyerman SD, Atkin OK. Enhancing crop yields through improvements in the efficiency of photosynthesis and respiration. New Phytol 2023; 237:60-77. [PMID: 36251512 PMCID: PMC10100352 DOI: 10.1111/nph.18545] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 09/15/2022] [Indexed: 06/06/2023]
Abstract
The rate with which crop yields per hectare increase each year is plateauing at the same time that human population growth and other factors increase food demand. Increasing yield potential (Y p ) of crops is vital to address these challenges. In this review, we explore a component ofY p that has yet to be optimised - that being improvements in the efficiency with which light energy is converted into biomass (ε c ) via modifications to CO2 fixed per unit quantum of light (α), efficiency of respiratory ATP production (ε prod ) and efficiency of ATP use (ε use ). For α, targets include changes in photoprotective machinery, ribulose bisphosphate carboxylase/oxygenase kinetics and photorespiratory pathways. There is also potential forε prod to be increased via targeted changes to the expression of the alternative oxidase and mitochondrial uncoupling pathways. Similarly, there are possibilities to improveε use via changes to the ATP costs of phloem loading, nutrient uptake, futile cycles and/or protein/membrane turnover. Recently developed high-throughput measurements of respiration can serve as a proxy for the cumulative energy cost of these processes. There are thus exciting opportunities to use our growing knowledge of factors influencing the efficiency of photosynthesis and respiration to create a step-change in yield potential of globally important crops.
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Affiliation(s)
- Andres Garcia
- ARC Centre of Excellence in Plant Energy Biology, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
| | - Oorbessy Gaju
- ARC Centre of Excellence in Plant Energy Biology, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
- College of Science, Lincoln Institute for Agri‐Food TechnologyUniversity of LincolnLincolnshireLN2 2LGUK
| | - Andrew F. Bowerman
- ARC Centre of Excellence in Plant Energy Biology, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
| | - Sally A. Buck
- ARC Centre of Excellence in Plant Energy Biology, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
| | - John R. Evans
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
| | - Robert T. Furbank
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
| | - Matthew Gilliham
- ARC Centre of Excellence in Plant Energy Biology, School of Agriculture, Food and Wine & Waite Research InstituteUniversity of AdelaideGlen OsmondSA5064Australia
| | - A. Harvey Millar
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences & Institute of AgricultureThe University of Western AustraliaCrawleyWA6009Australia
| | - Barry J. Pogson
- ARC Centre of Excellence in Plant Energy Biology, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
| | - Matthew P. Reynolds
- International Maize and Wheat Improvement Center (CIMMYT)Km. 45, Carretera Mexico, El BatanTexcoco56237Mexico
| | - Yong‐Ling Ruan
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
| | - Nicolas L. Taylor
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences & Institute of AgricultureThe University of Western AustraliaCrawleyWA6009Australia
| | - Stephen D. Tyerman
- ARC Centre of Excellence in Plant Energy Biology, School of Agriculture, Food and Wine & Waite Research InstituteUniversity of AdelaideGlen OsmondSA5064Australia
| | - Owen K. Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of BiologyThe Australian National UniversityCanberraACT2601Australia
- Division of Plant Sciences, Research School of BiologyAustralian National UniversityCanberraACT2601Australia
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7
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Slafer GA, Foulkes MJ, Reynolds MP, Murchie EH, Carmo-Silva E, Flavell R, Gwyn J, Sawkins M, Griffiths S. A 'wiring diagram' for sink strength traits impacting wheat yield potential. J Exp Bot 2023; 74:40-71. [PMID: 36334052 PMCID: PMC9786893 DOI: 10.1093/jxb/erac410] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 11/04/2022] [Indexed: 05/17/2023]
Abstract
Identifying traits for improving sink strength is a bottleneck to increasing wheat yield. The interacting processes determining sink strength and yield potential are reviewed and visualized in a set of 'wiring diagrams', covering critical phases of development (and summarizing known underlying genetics). Using this framework, we reviewed and assembled the main traits determining sink strength and identified research gaps and potential hypotheses to be tested for achieving gains in sink strength. In pre-anthesis, grain number could be increased through: (i) enhanced spike growth associated with optimized floret development and/or a reduction in specific stem-internode lengths and (ii) improved fruiting efficiency through an accelerated rate of floret development, improved partitioning between spikes, or optimized spike cytokinin levels. In post-anthesis, grain, sink strength could be augmented through manipulation of grain size potential via ovary size and/or endosperm cell division and expansion. Prospects for improving spike vascular architecture to support all rapidly growing florets, enabling the improved flow of assimilate, are also discussed. Finally, we considered the prospects for enhancing grain weight realization in relation to genetic variation in stay-green traits as well as stem carbohydrate remobilization. The wiring diagrams provide a potential workspace for breeders and crop scientists to achieve yield gains in wheat and other field crops.
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Affiliation(s)
| | | | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Km. 45, Carretera Mexico, El Batan, Texcoco, Mexico
| | - Erik H Murchie
- Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire LE12 5RD, UK
| | | | - Richard Flavell
- International Wheat Yield Partnership, 1500 Research Parkway, College Station, TX 77843, USA
| | - Jeff Gwyn
- International Wheat Yield Partnership, 1500 Research Parkway, College Station, TX 77843, USA
| | - Mark Sawkins
- International Wheat Yield Partnership, 1500 Research Parkway, College Station, TX 77843, USA
| | - Simon Griffiths
- John Innes Centre, Norwich Research Park, Colney Ln, Norwich NR4 7UH, UK
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8
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Khan N, Zhang Y, Wang J, Li Y, Chen X, Yang L, Zhang J, Li C, Li L, Ur Rehman S, Reynolds MP, Zhang L, Zhang X, Mao X, Jing R. TaGSNE, a WRKY transcription factor, overcomes the trade-off between grain size and grain number in common wheat and is associated with root development. J Exp Bot 2022; 73:6678-6696. [PMID: 35906966 DOI: 10.1093/jxb/erac327] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 07/26/2022] [Indexed: 05/28/2023]
Abstract
Wheat is one of the world's major staple food crops, and breeding for improvement of grain yield is a priority under the scenarios of climate change and population growth. WRKY transcription factors are multifaceted regulators in plant growth, development, and responses to environmental stimuli. In this study, we identify the WRKY gene TaGSNE (Grain Size and Number Enhancer) in common wheat, and find that it has relatively high expression in leaves and roots, and is induced by multiple abiotic stresses. Eleven single-nucleotide polymorphisms were identified in TaGSNE, forming two haplotypes in multiple germplasm collections, named as TaGSNE-Hap-1 and TaGSNE-Hap-2. In a range of different environments, TaGSNE-Hap-2 was significantly associated with increases in thousand-grain weight (TGW; 3.0%) and spikelet number per spike (4.1%), as well as with deeper roots (10.1%) and increased root dry weight (8.3%) at the mid-grain-filling stage, and these were confirmed in backcross introgression populations. Furthermore, transgenic rice lines overexpressing TaGSNE had larger panicles, more grains, increased grain size, and increased grain yield relative to the wild-type control. Analysis of geographic and temporal distributions revealed that TaGSNE-Hap-2 is positively selected in China and Pakistan, and TaGSNE-Hap-1 in Europe. Our findings demonstrate that TaGSNE overcomes the trade-off between TGW/grain size and grain number, leading us to conclude that these elite haplotypes and their functional markers could be utilized in marker-assisted selection for breeding high-yielding varieties.
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Affiliation(s)
- Nadia Khan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Department of Genetics, University of Karachi, Pakistan
| | - Yanfei Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Henan Agricultural University, Zhengzhou, Henan, China
| | - Jingyi Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yuying Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Henan Agricultural University, Zhengzhou, Henan, China
| | - Xin Chen
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lili Yang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jie Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chaonan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Long Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shoaib Ur Rehman
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan 60000, Pakistan
| | | | - Lichao Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xueyong Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xinguo Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ruilian Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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9
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Robles-Zazueta CA, Pinto F, Molero G, Foulkes MJ, Reynolds MP, Murchie EH. Prediction of Photosynthetic, Biophysical, and Biochemical Traits in Wheat Canopies to Reduce the Phenotyping Bottleneck. Front Plant Sci 2022; 13:828451. [PMID: 35481146 PMCID: PMC9036448 DOI: 10.3389/fpls.2022.828451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
To achieve food security, it is necessary to increase crop radiation use efficiency (RUE) and yield through the enhancement of canopy photosynthesis to increase the availability of assimilates for the grain, but its study in the field is constrained by low throughput and the lack of integrative measurements at canopy level. In this study, partial least squares regression (PLSR) was used with high-throughput phenotyping (HTP) data in spring wheat to build predictive models of photosynthetic, biophysical, and biochemical traits for the top, middle, and bottom layers of wheat canopies. The combined layer model predictions performed better than individual layer predictions with a significance as follows for photosynthesis R 2 = 0.48, RMSE = 5.24 μmol m-2 s-1 and stomatal conductance: R 2 = 0.36, RMSE = 0.14 mol m-2 s-1. The predictions of these traits from PLSR models upscaled to canopy level compared to field observations were statistically significant at initiation of booting (R 2 = 0.3, p < 0.05; R 2 = 0.29, p < 0.05) and at 7 days after anthesis (R 2 = 0.15, p < 0.05; R 2 = 0.65, p < 0.001). Using HTP allowed us to increase phenotyping capacity 30-fold compared to conventional phenotyping methods. This approach can be adapted to screen breeding progeny and genetic resources for RUE and to improve our understanding of wheat physiology by adding different layers of the canopy to physiological modeling.
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Affiliation(s)
- Carlos A. Robles-Zazueta
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Francisco Pinto
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Gemma Molero
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - M. John Foulkes
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
| | - Matthew P. Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Erik H. Murchie
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
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10
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Xu J, Lowe C, Hernandez-Leon SG, Dreisigacker S, Reynolds MP, Valenzuela-Soto EM, Paul MJ, Heuer S. The Effects of Brief Heat During Early Booting on Reproductive, Developmental, and Chlorophyll Physiological Performance in Common Wheat ( Triticum aestivum L.). Front Plant Sci 2022; 13:886541. [PMID: 35651779 PMCID: PMC9149578 DOI: 10.3389/fpls.2022.886541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/04/2022] [Indexed: 05/13/2023]
Abstract
Rising temperatures due to climate change threaten agricultural crop productivity. As a cool-season crop, wheat is heat-sensitive, but often exposed to high temperatures during the cultivation period. In the current study, a bread wheat panel of spring wheat genotypes, including putatively heat-tolerant Australian and CIMMYT genotypes, was exposed to a 5-day mild (34°C/28°C, day/night) or extreme (37°C/27°C) heat stress during the sensitive pollen developmental stage. Worsening effects on anther morphology were observed, as heat stress increased from mild to extreme. Even under mild heat, a significant decrease in pollen viability and number of grains per spike from primary spike was observed compared with the control (21°C/15°C), with Sunstar and two CIMMYT breeding lines performing well. A heat-specific positive correlation between the two traits indicates the important role of pollen fertility for grain setting. Interestingly, both mild and extreme heat induced development of new tillers after the heat stress, providing an alternative sink for accumulated photosynthates and significantly contributing to the final yield. Measurements of flag leaf maximum potential quantum efficiency of photosystem II (Fv/Fm) showed an initial inhibition after the heat treatment, followed by a full recovery within a few days. Despite this, model fitting using chlorophyll soil plant analysis development (SPAD) measurements showed an earlier onset or faster senescence rate under heat stress. The data presented here provide interesting entry points for further research into pollen fertility, tillering dynamics, and leaf senescence under heat. The identified heat-tolerant wheat genotypes can be used to dissect the underlying mechanisms and breed climate-resilient wheat.
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Affiliation(s)
- Jiemeng Xu
- Plant Science Department, Rothamsted Research, Harpenden, United Kingdom
| | - Claudia Lowe
- Plant Science Department, Rothamsted Research, Harpenden, United Kingdom
| | - Sergio G. Hernandez-Leon
- Centro de Investigación en Alimentación y Desarrollo A.C., Carretera Gustavo Enrique Aztiazarán Rosas, Hermosillo, Mexico
| | | | | | - Elisa M. Valenzuela-Soto
- Centro de Investigación en Alimentación y Desarrollo A.C., Carretera Gustavo Enrique Aztiazarán Rosas, Hermosillo, Mexico
| | - Matthew J. Paul
- Plant Science Department, Rothamsted Research, Harpenden, United Kingdom
| | - Sigrid Heuer
- Plant Science Department, Rothamsted Research, Harpenden, United Kingdom
- Pre-Breeding Department, National Institute of Agricultual Botany (NIAB), Cambridge, United Kingdom
- *Correspondence: Sigrid Heuer,
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11
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Lyra DH, Griffiths CA, Watson A, Joynson R, Molero G, Igna AA, Hassani-Pak K, Reynolds MP, Hall A, Paul MJ. Gene-based mapping of trehalose biosynthetic pathway genes reveals association with source- and sink-related yield traits in a spring wheat panel. Food Energy Secur 2021; 10:e292. [PMID: 34594548 PMCID: PMC8459250 DOI: 10.1002/fes3.292] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
Trehalose 6‐phosphate (T6P) signalling regulates carbon use and allocation and is a target to improve crop yields. However, the specific contributions of trehalose phosphate synthase (TPS) and trehalose phosphate phosphatase (TPP) genes to source‐ and sink‐related traits remain largely unknown. We used enrichment capture sequencing on TPS and TPP genes to estimate and partition the genetic variation of yield‐related traits in a spring wheat (Triticum aestivum) breeding panel specifically built to capture the diversity across the 75,000 CIMMYT wheat cultivar collection. Twelve phenotypes were correlated to variation in TPS and TPP genes including plant height and biomass (source), spikelets per spike, spike growth and grain filling traits (sink) which showed indications of both positive and negative gene selection. Individual genes explained proportions of heritability for biomass and grain‐related traits. Three TPS1 homologues were particularly significant for trait variation. Epistatic interactions were found within and between the TPS and TPP gene families for both plant height and grain‐related traits. Gene‐based prediction improved predictive ability for grain weight when gene effects were combined with the whole‐genome markers. Our study has generated a wealth of information on natural variation of TPS and TPP genes related to yield potential which confirms the role for T6P in resource allocation and in affecting traits such as grain number and size confirming other studies which now opens up the possibility of harnessing natural genetic variation more widely to better understand the contribution of native genes to yield traits for incorporation into breeding programmes.
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Affiliation(s)
- Danilo H Lyra
- Computational & Analytical Sciences Rothamsted Research Harpenden UK
| | | | - Amy Watson
- Plant Sciences Rothamsted Research Harpenden UK
| | | | - Gemma Molero
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT) Texcoco Mexico
| | | | | | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT) Texcoco Mexico
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12
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Varshney RK, Barmukh R, Roorkiwal M, Qi Y, Kholova J, Tuberosa R, Reynolds MP, Tardieu F, Siddique KHM. Breeding custom-designed crops for improved drought adaptation. Adv Genet (Hoboken) 2021; 2:e202100017. [PMID: 36620433 PMCID: PMC9744523 DOI: 10.1002/ggn2.202100017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 08/11/2021] [Indexed: 01/11/2023]
Abstract
The current pace of crop improvement is inadequate to feed the burgeoning human population by 2050. Higher, more stable, and sustainable crop production is required against a backdrop of drought stress, which causes significant losses in crop yields. Tailoring crops for drought adaptation may hold the key to address these challenges and provide resilient production systems for future harvests. Understanding the genetic and molecular landscape of the functionality of alleles associated with adaptive traits will make designer crop breeding the prospective approach for crop improvement. Here, we highlight the potential of genomics technologies combined with crop physiology for high-throughput identification of the genetic architecture of key drought-adaptive traits and explore innovative genomic breeding strategies for designing future crops.
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Affiliation(s)
- Rajeev K. Varshney
- Centre of Excellence in Genomics and Systems BiologyInternational Crops Research Institute for the Semi‐Arid Tropics (ICRISAT)HyderabadIndia,State Agricultural Biotechnology Centre, Centre for Crop and Food InnovationMurdoch UniversityMurdochWestern AustraliaAustralia
| | - Rutwik Barmukh
- Centre of Excellence in Genomics and Systems BiologyInternational Crops Research Institute for the Semi‐Arid Tropics (ICRISAT)HyderabadIndia
| | - Manish Roorkiwal
- Centre of Excellence in Genomics and Systems BiologyInternational Crops Research Institute for the Semi‐Arid Tropics (ICRISAT)HyderabadIndia
| | - Yiping Qi
- Department of Plant Science and Landscape ArchitectureUniversity of MarylandCollege ParkMarylandUSA,Institute for Bioscience and Biotechnology ResearchUniversity of MarylandRockvilleMarylandUSA
| | - Jana Kholova
- Crop Physiology and ModellingInternational Crops Research Institute for the Semi‐Arid Tropics (ICRISAT)HyderabadIndia
| | - Roberto Tuberosa
- Department of Agricultural and Food SciencesUniversity of BolognaBolognaItaly
| | | | - Francois Tardieu
- Université de Montpellier, INRAE, Laboratoire d'Ecophysiologie des Plantes sous Stress, EnvironnementauxMontpellierFrance
| | - Kadambot H. M. Siddique
- The UWA Institute of AgricultureThe University of Western AustraliaPerthWestern AustraliaAustralia
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13
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Xiong W, Reynolds MP, Crossa J, Schulthess U, Sonder K, Montes C, Addimando N, Singh RP, Ammar K, Gerard B, Payne T. Increased ranking change in wheat breeding under climate change. Nat Plants 2021; 7:1207-1212. [PMID: 34462575 DOI: 10.1038/s41477-021-00988-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/18/2021] [Indexed: 05/15/2023]
Abstract
The International Maize and Wheat Improvement Center develops and annually distributes elite wheat lines to public and private breeders worldwide. Trials have been created in multiple sites over many years to assess the lines' performance for use in breeding and release as varieties, and to provide iterative feedback on refining breeding strategies1. The collaborator test sites are experiencing climate change, with new implications for how wheat genotypes are bred and selected2. Using a standard quantitative genetic model to analyse four International Maize and Wheat Improvement Center global spring wheat trial datasets, we examine how genotype-environment interactions have changed over recent decades. Notably, crossover interactions-a critical indicator of changes in the ranking of cultivar performance in different environments-have increased over time. Climatic factors explained over 70% of the year-to-year variability in crossover interactions for yield. Yield responses of all lines in trial environments from 1980 to 2018 revealed that climate change has increased the ranking change in breeding targeted to favourable environments by ~15%, while it has maintained or reduced the ranking change in breeding targeted to heat and drought stress by up to 13%. Genetic improvement has generally increased crossover interactions, particularly for wheat targeted to high-yielding environments. However, the latest wheat germplasm developed under heat stress was better adapted and more stable, partly offsetting the increase in ranking changes under the warmer climate.
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Affiliation(s)
- Wei Xiong
- CIMMYT-Henan Joint Center for Wheat and Maize Improvement/Agronomy College, Henan Agricultural University, Zhengzhou, China.
- Sustainable Intensification Program, International Maize and Wheat Improvement Center, Texcoco, Mexico.
| | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Jose Crossa
- Biometric and Statistics Unit, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Urs Schulthess
- CIMMYT-Henan Joint Center for Wheat and Maize Improvement/Agronomy College, Henan Agricultural University, Zhengzhou, China
- Sustainable Intensification Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Kai Sonder
- Integrated Development Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Carlo Montes
- Sustainable Intensification Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | | | - Ravi P Singh
- Global Wheat Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Karim Ammar
- Global Wheat Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Bruno Gerard
- Sustainable Intensification Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
| | - Thomas Payne
- Global Wheat Program, International Maize and Wheat Improvement Center, Texcoco, Mexico
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14
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Joynson R, Molero G, Coombes B, Gardiner L, Rivera‐Amado C, Piñera‐Chávez FJ, Evans JR, Furbank RT, Reynolds MP, Hall A. Uncovering candidate genes involved in photosynthetic capacity using unexplored genetic variation in Spring Wheat. Plant Biotechnol J 2021; 19:1537-1552. [PMID: 33638599 PMCID: PMC8384606 DOI: 10.1111/pbi.13568] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 01/26/2021] [Indexed: 05/10/2023]
Abstract
To feed an ever-increasing population we must leverage advances in genomics and phenotyping to harness the variation in wheat breeding populations for traits like photosynthetic capacity which remains unoptimized. Here we survey a diverse set of wheat germplasm containing elite, introgression and synthetic derivative lines uncovering previously uncharacterized variation. We demonstrate how strategic integration of exotic material alleviates the D genome genetic bottleneck in wheat, increasing SNP rate by 62% largely due to Ae. tauschii synthetic wheat donors. Across the panel, 67% of the Ae. tauschii donor genome is represented as introgressions in elite backgrounds. We show how observed genetic variation together with hyperspectral reflectance data can be used to identify candidate genes for traits relating to photosynthetic capacity using association analysis. This demonstrates the value of genomic methods in uncovering hidden variation in wheat and how that variation can assist breeding efforts and increase our understanding of complex traits.
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Affiliation(s)
| | - Gemma Molero
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT)TexcocoMexico
| | | | | | - Carolina Rivera‐Amado
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT)TexcocoMexico
| | | | - John R. Evans
- ARC Centre of Excellence for Translational PhotosynthesisAustralian National UniversityCanberraAustralia
| | - Robert T. Furbank
- ARC Centre of Excellence for Translational PhotosynthesisAustralian National UniversityCanberraAustralia
| | - Matthew P. Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT)TexcocoMexico
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15
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Li C, Li L, Reynolds MP, Wang J, Chang X, Mao X, Jing R. Recognizing the hidden half in wheat: root system attributes associated with drought tolerance. J Exp Bot 2021; 72:5117-5133. [PMID: 33783492 DOI: 10.1093/jxb/erab124] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/15/2021] [Indexed: 05/09/2023]
Abstract
Improving drought tolerance in wheat is crucial for maintaining productivity and food security. Roots are responsible for the uptake of water from soil, and a number of root traits are associated with drought tolerance. Studies have revealed many quantitative trait loci and genes controlling root development in plants. However, the genetic dissection of root traits in response to drought in wheat is still unclear. Here, we review crop root traits associated with drought, key genes governing root development in plants, and quantitative trait loci and genes regulating root system architecture under water-limited conditions in wheat. Deep roots, optimal root length density and xylem diameter, and increased root surface area are traits contributing to drought tolerance. In view of the diverse environments in which wheat is grown, the balance among root and shoot traits, as well as individual and population performance, are discussed. The known functions of key genes provide information for the genetic dissection of root development of wheat in a wide range of conditions, and will be beneficial for molecular marker development, marker-assisted selection, and genetic improvement in breeding for drought tolerance.
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Affiliation(s)
- Chaonan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Long Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | | | - Jingyi Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiaoping Chang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xinguo Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ruilian Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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16
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Affiliation(s)
- Graeme L Hammer
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation, Centre for Crop Science, Brisbane, QLD 4072, Australia
| | - Mark Cooper
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation, Centre for Crop Science, Brisbane, QLD 4072, Australia
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
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17
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Reynolds MP, Lewis JM, Ammar K, Basnet BR, Crespo-Herrera L, Crossa J, Dhugga KS, Dreisigacker S, Juliana P, Karwat H, Kishii M, Krause MR, Langridge P, Lashkari A, Mondal S, Payne T, Pequeno D, Pinto F, Sansaloni C, Schulthess U, Singh RP, Sonder K, Sukumaran S, Xiong W, Braun HJ. Harnessing translational research in wheat for climate resilience. J Exp Bot 2021; 72:5134-5157. [PMID: 34139769 PMCID: PMC8272565 DOI: 10.1093/jxb/erab256] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/14/2021] [Indexed: 05/24/2023]
Abstract
Despite being the world's most widely grown crop, research investments in wheat (Triticum aestivum and Triticum durum) fall behind those in other staple crops. Current yield gains will not meet 2050 needs, and climate stresses compound this challenge. However, there is good evidence that heat and drought resilience can be boosted through translating promising ideas into novel breeding technologies using powerful new tools in genetics and remote sensing, for example. Such technologies can also be applied to identify climate resilience traits from among the vast and largely untapped reserve of wheat genetic resources in collections worldwide. This review describes multi-pronged research opportunities at the focus of the Heat and Drought Wheat Improvement Consortium (coordinated by CIMMYT), which together create a pipeline to boost heat and drought resilience, specifically: improving crop design targets using big data approaches; developing phenomic tools for field-based screening and research; applying genomic technologies to elucidate the bases of climate resilience traits; and applying these outputs in developing next-generation breeding methods. The global impact of these outputs will be validated through the International Wheat Improvement Network, a global germplasm development and testing system that contributes key productivity traits to approximately half of the global wheat-growing area.
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Affiliation(s)
- Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Janet M Lewis
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Karim Ammar
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Bhoja R Basnet
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | | | - José Crossa
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Kanwarpal S Dhugga
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | | | - Philomin Juliana
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Hannes Karwat
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Masahiro Kishii
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Margaret R Krause
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Peter Langridge
- School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, PMB1, Glen Osmond SA 5064, Australia
- Wheat Initiative, Julius Kühn-Institute, Königin-Luise-Str. 19, 14195 Berlin, Germany
| | - Azam Lashkari
- CIMMYT-Henan Collaborative Innovation Center, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Suchismita Mondal
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Thomas Payne
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Diego Pequeno
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Francisco Pinto
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Carolina Sansaloni
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Urs Schulthess
- CIMMYT-Henan Collaborative Innovation Center, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Ravi P Singh
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Kai Sonder
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | | | - Wei Xiong
- CIMMYT-Henan Collaborative Innovation Center, Henan Agricultural University, Zhengzhou, 450002, PR China
| | - Hans J Braun
- International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
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18
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Li X, Guo T, Wang J, Bekele WA, Sukumaran S, Vanous AE, McNellie JP, Tibbs-Cortes LE, Lopes MS, Lamkey KR, Westgate ME, McKay JK, Archontoulis SV, Reynolds MP, Tinker NA, Schnable PS, Yu J. An integrated framework reinstating the environmental dimension for GWAS and genomic selection in crops. Mol Plant 2021; 14:874-887. [PMID: 33713844 DOI: 10.1016/j.molp.2021.03.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/03/2021] [Accepted: 03/09/2021] [Indexed: 05/08/2023]
Abstract
Identifying mechanisms and pathways involved in gene-environment interplay and phenotypic plasticity is a long-standing challenge. It is highly desirable to establish an integrated framework with an environmental dimension for complex trait dissection and prediction. A critical step is to identify an environmental index that is both biologically relevant and estimable for new environments. With extensive field-observed complex traits, environmental profiles, and genome-wide single nucleotide polymorphisms for three major crops (maize, wheat, and oat), we demonstrated that identifying such an environmental index (i.e., a combination of environmental parameter and growth window) enables genome-wide association studies and genomic selection of complex traits to be conducted with an explicit environmental dimension. Interestingly, genes identified for two reaction-norm parameters (i.e., intercept and slope) derived from flowering time values along the environmental index were less colocalized for a diverse maize panel than for wheat and oat breeding panels, agreeing with the different diversity levels and genetic constitutions of the panels. In addition, we showcased the usefulness of this framework for systematically forecasting the performance of diverse germplasm panels in new environments. This general framework and the companion CERIS-JGRA analytical package should facilitate biologically informed dissection of complex traits, enhanced performance prediction in breeding for future climates, and coordinated efforts to enrich our understanding of mechanisms underlying phenotypic variation.
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Affiliation(s)
- Xianran Li
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - Tingting Guo
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - Jinyu Wang
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - Wubishet A Bekele
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada
| | - Sivakumar Sukumaran
- International Maize and Wheat Improvement Center (CIMMYT), Mexico City, Mexico
| | - Adam E Vanous
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - James P McNellie
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | | | - Marta S Lopes
- International Maize and Wheat Improvement Center (CIMMYT), Mexico City, Mexico
| | - Kendall R Lamkey
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - Mark E Westgate
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA
| | - John K McKay
- Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, CO 80523, USA
| | | | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Mexico City, Mexico
| | - Nicholas A Tinker
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada
| | | | - Jianming Yu
- Department of Agronomy, Iowa State University, Ames, IA 50011, USA.
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19
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Camarillo-Castillo F, Huggins TD, Mondal S, Reynolds MP, Tilley M, Hays DB. High-resolution spectral information enables phenotyping of leaf epicuticular wax in wheat. Plant Methods 2021; 17:58. [PMID: 34098962 PMCID: PMC8185930 DOI: 10.1186/s13007-021-00759-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 05/26/2021] [Indexed: 05/02/2023]
Abstract
BACKGROUND Epicuticular wax (EW) is the first line of defense in plants for protection against biotic and abiotic factors in the environment. In wheat, EW is associated with resilience to heat and drought stress, however, the current limitations on phenotyping EW restrict the integration of this secondary trait into wheat breeding pipelines. In this study we evaluated the use of light reflectance as a proxy for EW load and developed an efficient indirect method for the selection of genotypes with high EW density. RESULTS Cuticular waxes affect the light that is reflected, absorbed and transmitted by plants. The narrow spectral regions statistically associated with EW overlap with bands linked to photosynthetic radiation (500 nm), carotenoid absorbance (400 nm) and water content (~ 900 nm) in plants. The narrow spectral indices developed predicted 65% (EWI-13) and 44% (EWI-1) of the variation in this trait utilizing single-leaf reflectance. However, the normalized difference indices EWI-4 and EWI-9 improved the phenotyping efficiency with canopy reflectance across all field experimental trials. Indirect selection for EW with EWI-4 and EWI-9 led to a selection efficiency of 70% compared to phenotyping with the chemical method. The regression model EWM-7 integrated eight narrow wavelengths and accurately predicted 71% of the variation in the EW load (mg·dm-2) with leaf reflectance, but under field conditions, a single-wavelength model consistently estimated EW with an average RMSE of 1.24 mg·dm-2 utilizing ground and aerial canopy reflectance. CONCLUSIONS Overall, the indices EWI-1, EWI-13 and the model EWM-7 are reliable tools for indirect selection for EW based on leaf reflectance, and the indices EWI-4, EWI-9 and the model EWM-1 are reliable for selection based on canopy reflectance. However, further research is needed to define how the background effects and geometry of the canopy impact the accuracy of these phenotyping methods.
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Affiliation(s)
- Fátima Camarillo-Castillo
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, Mexico, D.F, 06600, Mexico.
| | - Trevis D Huggins
- USDA ARS, Dale Bumper National Rice Research Center, Stuttgart, AR, 72160, USA
| | - Suchismita Mondal
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, Mexico, D.F, 06600, Mexico
| | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Apdo. Postal 6-641, Mexico, D.F, 06600, Mexico
| | - Michael Tilley
- Agricultural Research Service, Center for Grain and Animal Health Research, USDA, 1515 College Ave., Manhattan, KS, 66502, USA
| | - Dirk B Hays
- Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas, 77840, USA
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20
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Robles-Zazueta CA, Molero G, Pinto F, Foulkes MJ, Reynolds MP, Murchie EH. Field-based remote sensing models predict radiation use efficiency in wheat. J Exp Bot 2021; 72:3756-3773. [PMID: 33713415 PMCID: PMC8096595 DOI: 10.1093/jxb/erab115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/10/2021] [Indexed: 05/08/2023]
Abstract
Wheat yields are stagnating or declining in many regions, requiring efforts to improve the light conversion efficiency, known as radiation use efficiency (RUE). RUE is a key trait in plant physiology because it links light capture and primary metabolism with biomass accumulation and yield, but its measurement is time consuming and this has limited its use in fundamental research and large-scale physiological breeding. In this study, high-throughput plant phenotyping (HTPP) approaches were used among a population of field-grown wheat with variation in RUE and photosynthetic traits to build predictive models of RUE, biomass, and intercepted photosynthetically active radiation (IPAR). Three approaches were used: best combination of sensors; canopy vegetation indices; and partial least squares regression. The use of remote sensing models predicted RUE with up to 70% accuracy compared with ground truth data. Water indices and canopy greenness indices [normalized difference vegetation index (NDVI), enhanced vegetation index (EVI)] are the better option to predict RUE, biomass, and IPAR, and indices related to gas exchange, non-photochemical quenching [photochemical reflectance index (PRI)] and senescence [structural-insensitive pigment index (SIPI)] are better predictors for these traits at the vegetative and grain-filling stages, respectively. These models will be instrumental to explain canopy processes, improve crop growth and yield modelling, and potentially be used to predict RUE in different crops or ecosystems.
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Affiliation(s)
- Carlos A Robles-Zazueta
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Leicestershire LE12 5RD,UK
- International Maize and Wheat Improvement Center (CIMMYT), carretera Mexico-Veracruz km 45, El Batan, Texcoco, Mexico CP
| | - Gemma Molero
- International Maize and Wheat Improvement Center (CIMMYT), carretera Mexico-Veracruz km 45, El Batan, Texcoco, Mexico CP
- KWS Momont Recherche, 7 rue de Martinval, 59246 Mons-en-Pevele,France
| | - Francisco Pinto
- International Maize and Wheat Improvement Center (CIMMYT), carretera Mexico-Veracruz km 45, El Batan, Texcoco, Mexico CP
| | - M John Foulkes
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Leicestershire LE12 5RD,UK
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), carretera Mexico-Veracruz km 45, El Batan, Texcoco, Mexico CP
| | - Erik H Murchie
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Leicestershire LE12 5RD,UK
- Correspondence:
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21
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Calderini DF, Castillo FM, Arenas‐M A, Molero G, Reynolds MP, Craze M, Bowden S, Milner MJ, Wallington EJ, Dowle A, Gomez LD, McQueen‐Mason SJ. Overcoming the trade-off between grain weight and number in wheat by the ectopic expression of expansin in developing seeds leads to increased yield potential. New Phytol 2021; 230:629-640. [PMID: 33124693 PMCID: PMC8048851 DOI: 10.1111/nph.17048] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/21/2020] [Indexed: 05/19/2023]
Abstract
Wheat is the most widely grown crop globally, providing 20% of all human calories and protein. Achieving step changes in genetic yield potential is crucial to ensure food security, but efforts are thwarted by an apparent trade-off between grain size and number. Expansins are proteins that play important roles in plant growth by enhancing stress relaxation in the cell wall, which constrains cell expansion. Here, we describe how targeted overexpression of an α-expansin in early developing wheat seeds leads to a significant increase in grain size without a negative effect on grain number, resulting in a yield boost under field conditions. The best-performing transgenic line yielded 12.3% higher average grain weight than the control, and this translated to an increase in grain yield of 11.3% in field experiments using an agronomically appropriate plant density. This targeted transgenic approach provides an opportunity to overcome a common bottleneck to yield improvement across many crops.
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Affiliation(s)
- Daniel F. Calderini
- Institute of Plant Production and ProtectionUniversidad Austral de ChileCampus Isla TejaValdivia5090000Chile
| | - Francisca M. Castillo
- Institute of Plant Production and ProtectionUniversidad Austral de ChileCampus Isla TejaValdivia5090000Chile
- Institute of Biochemistry and MicrobiologyFaculty of SciencesUniversidad Austral de ChileValdivia5090000Chile
| | - Anita Arenas‐M
- Institute of Plant Production and ProtectionUniversidad Austral de ChileCampus Isla TejaValdivia5090000Chile
- Institute of Biochemistry and MicrobiologyFaculty of SciencesUniversidad Austral de ChileValdivia5090000Chile
| | - Gemma Molero
- International Maize and Wheat Improvement Center (CIMMYT)El BatánTexcocoCP 56237Mexico
| | - Matthew P. Reynolds
- International Maize and Wheat Improvement Center (CIMMYT)El BatánTexcocoCP 56237Mexico
| | | | | | | | | | - Adam Dowle
- CNAPBiology DepartmentUniversity of YorkWentworth Way, HeslingtonYorkYO10 5YWUK
| | - Leonardo D. Gomez
- CNAPBiology DepartmentUniversity of YorkWentworth Way, HeslingtonYorkYO10 5YWUK
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22
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Li Y, Zhang Y, Li C, Chen X, Yang L, Zhang J, Wang J, Li L, Reynolds MP, Jing R, Mao X, Wang C. Transcription Factor TaWRKY51 Is a Positive Regulator in Root Architecture and Grain Yield Contributing Traits. Front Plant Sci 2021; 12:734614. [PMID: 34745169 PMCID: PMC8567066 DOI: 10.3389/fpls.2021.734614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/17/2021] [Indexed: 05/17/2023]
Abstract
Wheat is one of the staple food crops. The utilization of elite genetic resources to develop resource-efficient wheat varieties is an effective approach to deal with the challenges of climate change and population growth. WRKY transcription factors (TFs) are multifaceted regulators of plant growth and development and response to environmental stress. The previous studies have shown that TaWRKY51 positively regulates the development of lateral roots, while its roles in agronomic trait development are not clear, and there is no functional marker for molecular breeding. To bridge the gap, we cloned the three members of TaWRKY51 and found they were highly expressed in the roots and flag leaves at the flowering stage and were induced by the multiple abiotic stresses and phytohormones. The highest expression level was observed in TaWRKY51-2D, followed by TaWRKY51-2A and -2B. The two haplotypes/alleles for each member were identified in the natural populations, and functional markers were developed accordingly. The association assays revealed that Hap-2A-I was an elite haplotype for the large spike, Hap-2B-II and allele-G were favorable haplotypes/alleles for long root. However, only Hap-2A-I was selected for wheat breeding in China. The results of transgenic experiments showed that the rice lines overexpressing TaWRKY51 had large panicle, high thousand-grain-weight, and more crown and lateral roots, which further confirmed the results of association analysis. In short, TaWRKY51 is a positive regulator of the root architecture and grain yield (GY) contributing traits. The elite gene resources and functional markers may be utilized in the marker-assisted selection for high-yield breeding in wheat.
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Affiliation(s)
- Yuying Li
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yanfei Zhang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chaonan Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xin Chen
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lili Yang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jie Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jingyi Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Long Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | | | - Ruilian Jing
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xinguo Mao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Xinguo Mao
| | - Chenyang Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
- Chenyang Wang
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23
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Griffiths CA, Reynolds MP, Paul MJ. Combining yield potential and drought resilience in a spring wheat diversity panel. Food Energy Secur 2020; 9:e241. [PMID: 33391733 PMCID: PMC7771037 DOI: 10.1002/fes3.241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 12/23/2022] Open
Abstract
Pressures of population growth and climate change require the development of resilient higher yielding crops, particularly to drought. A spring wheat diversity panel was developed to combine high-yield potential with resilience. To assess performance under drought, which in many environments is intermittent and dependent on plant development, 150 lines were grown with drought imposed for 10 days either at jointing or at anthesis stages in Obregon, Mexico. Both drought treatments strongly reduced grain numbers compared with the fully irrigated check. Best performers under drought at jointing had more grain than poor performers, while best performers under drought at anthesis had larger grain than poor performers. Most high-yielding lines were high yielding in one drought environment only. However, some of the best-performing lines displayed yield potential and resilience across two environments (28 lines), particularly for yield under well-watered and drought at jointing, where yield was most related to grain numbers. Strikingly, only three lines were high yielding across all three environments, and interestingly, these lines had high grain numbers. Among parameters measured in leaves and grain, leaf relative water content did not correlate with yield, and proline was negatively correlated with yield; there were small but significant relationships between leaf sugars and yield. This study provides a valuable resource for further crosses and for elucidating genes and mechanisms that may contribute to grain number and grain filling conservation to combine yield potential and drought resilience.
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24
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Silva-Pérez V, De Faveri J, Molero G, Deery DM, Condon AG, Reynolds MP, Evans JR, Furbank RT. Genetic variation for photosynthetic capacity and efficiency in spring wheat. J Exp Bot 2020; 71:2299-2311. [PMID: 31565736 PMCID: PMC7134913 DOI: 10.1093/jxb/erz439] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/19/2019] [Indexed: 05/05/2023]
Abstract
One way to increase yield potential in wheat is screening for natural variation in photosynthesis. This study uses measured and modelled physiological parameters to explore genotypic diversity in photosynthetic capacity (Pc, Rubisco carboxylation capacity per unit leaf area at 25 °C) and efficiency (Peff, Pc per unit of leaf nitrogen) in wheat in relation to fertilizer, plant stage, and environment. Four experiments (Aus1, Aus2, Aus3, and Mex1) were carried out with diverse wheat collections to investigate genetic variation for Rubisco capacity (Vcmax25), electron transport rate (J), CO2 assimilation rate, stomatal conductance, and complementary plant functional traits: leaf nitrogen, leaf dry mass per unit area, and SPAD. Genotypes for Aus1 and Aus2 were grown in the glasshouse with two fertilizer levels. Genotypes for Aus3 and Mex1 experiments were grown in the field in Australia and Mexico, respectively. Results showed that Vcmax25 derived from gas exchange measurements is a robust parameter that does not depend on stomatal conductance and was positively correlated with Rubisco content measured in vitro. There was significant genotypic variation in most of the experiments for Pc and Peff. Heritability of Pc reached 0.7 and 0.9 for SPAD. Genotypic variation and heritability of traits show that there is scope for these traits to be used in pre-breeding programmes to improve photosynthesis with the ultimate objective of raising yield potential.
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Affiliation(s)
- Viridiana Silva-Pérez
- CSIRO Agriculture & Food, Canberra, ACT, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology. The Australian National University, Canberra, ACT, Australia
| | | | - Gemma Molero
- International Maize and Wheat Improvement Centre (CIMMYT), México, DF, Mexico
| | | | - Anthony G Condon
- CSIRO Agriculture & Food, Canberra, ACT, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology. The Australian National University, Canberra, ACT, Australia
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT), México, DF, Mexico
| | - John R Evans
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology. The Australian National University, Canberra, ACT, Australia
| | - Robert T Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology. The Australian National University, Canberra, ACT, Australia
- Agriculture Victoria, Horsham, VIC, Australia
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25
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Posch BC, Kariyawasam BC, Bramley H, Coast O, Richards RA, Reynolds MP, Trethowan R, Atkin OK. Exploring high temperature responses of photosynthesis and respiration to improve heat tolerance in wheat. J Exp Bot 2019; 70:5051-5069. [PMID: 31145793 DOI: 10.1093/jxb/erz257] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Abstract
High temperatures account for major wheat yield losses annually and, as the climate continues to warm, these losses will probably increase. Both photosynthesis and respiration are the main determinants of carbon balance and growth in wheat, and both are sensitive to high temperature. Wheat is able to acclimate photosynthesis and respiration to high temperature, and thus reduce the negative affects on growth. The capacity to adjust these processes to better suit warmer conditions stands as a potential avenue toward reducing heat-induced yield losses in the future. However, much remains to be learnt about such phenomena. Here, we review what is known of high temperature tolerance in wheat, focusing predominantly on the high temperature responses of photosynthesis and respiration. We also identify the many unknowns that surround this area, particularly with respect to the high temperature response of wheat respiration and the consequences of this for growth and yield. It is concluded that further investigation into the response of photosynthesis and respiration to high temperature could present several methods of improving wheat high temperature tolerance. Extending our knowledge in this area could also lead to more immediate benefits, such as the enhancement of current crop models.
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Affiliation(s)
- Bradley C Posch
- ARC Centre of Excellence in Plant Energy Biology, Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - Buddhima C Kariyawasam
- ARC Centre of Excellence in Plant Energy Biology, Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - Helen Bramley
- Plant Breeding Institute, Sydney Institute of Agriculture & School of Life and Environmental Sciences, The University of Sydney, Narrabri, NSW, Australia
| | - Onoriode Coast
- ARC Centre of Excellence in Plant Energy Biology, Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | | | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Mexico City, Mexico
| | - Richard Trethowan
- Plant Breeding Institute, Sydney Institute of Agriculture & School of Life and Environmental Sciences, The University of Sydney, Narrabri, NSW, Australia
| | - Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, Australia
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26
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Coast O, Shah S, Ivakov A, Gaju O, Wilson PB, Posch BC, Bryant CJ, Negrini ACA, Evans JR, Condon AG, Silva-Pérez V, Reynolds MP, Pogson BJ, Millar AH, Furbank RT, Atkin OK. Predicting dark respiration rates of wheat leaves from hyperspectral reflectance. Plant Cell Environ 2019; 42:2133-2150. [PMID: 30835839 DOI: 10.1111/pce.13544] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 02/18/2019] [Accepted: 02/24/2019] [Indexed: 05/22/2023]
Abstract
Greater availability of leaf dark respiration (Rdark ) data could facilitate breeding efforts to raise crop yield and improve global carbon cycle modelling. However, the availability of Rdark data is limited because it is cumbersome, time consuming, or destructive to measure. We report a non-destructive and high-throughput method of estimating Rdark from leaf hyperspectral reflectance data that was derived from leaf Rdark measured by a destructive high-throughput oxygen consumption technique. We generated a large dataset of leaf Rdark for wheat (1380 samples) from 90 genotypes, multiple growth stages, and growth conditions to generate models for Rdark . Leaf Rdark (per unit leaf area, fresh mass, dry mass or nitrogen, N) varied 7- to 15-fold among individual plants, whereas traits known to scale with Rdark , leaf N, and leaf mass per area (LMA) only varied twofold to fivefold. Our models predicted leaf Rdark , N, and LMA with r2 values of 0.50-0.63, 0.91, and 0.75, respectively, and relative bias of 17-18% for Rdark and 7-12% for N and LMA. Our results suggest that hyperspectral model prediction of wheat leaf Rdark is largely independent of leaf N and LMA. Potential drivers of hyperspectral signatures of Rdark are discussed.
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Affiliation(s)
- Onoriode Coast
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Shahen Shah
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- The University of Agriculture Peshawar, Peshawar, 25130, Pakistan
| | - Alexander Ivakov
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Oorbessy Gaju
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Philippa B Wilson
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Bradley C Posch
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Callum J Bryant
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Anna Clarissa A Negrini
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - John R Evans
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Anthony G Condon
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- CSIRO Agriculture, Canberra, Australian Capital Territory, 2601, Australia
| | - Viridiana Silva-Pérez
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- CSIRO Agriculture, Canberra, Australian Capital Territory, 2601, Australia
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT), México, 06600, Mexico
| | - Barry J Pogson
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - A Harvey Millar
- ARC Centre of Excellence in Plant Energy Biology, University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Robert T Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
- CSIRO Agriculture, Canberra, Australian Capital Territory, 2601, Australia
| | - Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, Australian National University, Canberra, Australian Capital Territory, 2601, Australia
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27
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Molero G, Joynson R, Pinera‐Chavez FJ, Gardiner L, Rivera‐Amado C, Hall A, Reynolds MP. Elucidating the genetic basis of biomass accumulation and radiation use efficiency in spring wheat and its role in yield potential. Plant Biotechnol J 2019; 17:1276-1288. [PMID: 30549213 PMCID: PMC6576103 DOI: 10.1111/pbi.13052] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/20/2018] [Accepted: 11/25/2018] [Indexed: 05/22/2023]
Abstract
One of the major challenges for plant scientists is increasing wheat (Triticum aestivum) yield potential (YP). A significant bottleneck for increasing YP is achieving increased biomass through optimization of radiation use efficiency (RUE) along the crop cycle. Exotic material such as landraces and synthetic wheat has been incorporated into breeding programmes in an attempt to alleviate this; however, their contribution to YP is still unclear. To understand the genetic basis of biomass accumulation and RUE, we applied genome-wide association study (GWAS) to a panel of 150 elite spring wheat genotypes including many landrace and synthetically derived lines. The panel was evaluated for 31 traits over 2 years under optimal growing conditions and genotyped using the 35K wheat breeders array. Marker-trait association identified 94 SNPs significantly associated with yield, agronomic and phenology-related traits along with RUE and final biomass (BM_PM) at various growth stages that explained 7%-17% of phenotypic variation. Common SNP markers were identified for grain yield, BM_PM and RUE on chromosomes 5A and 7A. Additionally, landrace and synthetic derivative lines showed higher thousand grain weight (TGW), BM_PM and RUE but lower grain number (GM2) and harvest index (HI). Our work demonstrates the use of exotic material as a valuable resource to increase YP. It also provides markers for use in marker-assisted breeding to systematically increase BM_PM, RUE and TGW and avoid the TGW/GM2 and BM_PM/HI trade-off. Thus, achieving greater genetic gains in elite germplasm while also highlighting genomic regions and candidate genes for further study.
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Affiliation(s)
- Gemma Molero
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT)TexcocoMexico
| | | | | | | | - Carolina Rivera‐Amado
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT)TexcocoMexico
| | | | - Matthew P. Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT)TexcocoMexico
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28
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Asseng S, Martre P, Maiorano A, Rötter RP, O'Leary GJ, Fitzgerald GJ, Girousse C, Motzo R, Giunta F, Babar MA, Reynolds MP, Kheir AMS, Thorburn PJ, Waha K, Ruane AC, Aggarwal PK, Ahmed M, Balkovič J, Basso B, Biernath C, Bindi M, Cammarano D, Challinor AJ, De Sanctis G, Dumont B, Eyshi Rezaei E, Fereres E, Ferrise R, Garcia-Vila M, Gayler S, Gao Y, Horan H, Hoogenboom G, Izaurralde RC, Jabloun M, Jones CD, Kassie BT, Kersebaum KC, Klein C, Koehler AK, Liu B, Minoli S, Montesino San Martin M, Müller C, Naresh Kumar S, Nendel C, Olesen JE, Palosuo T, Porter JR, Priesack E, Ripoche D, Semenov MA, Stöckle C, Stratonovitch P, Streck T, Supit I, Tao F, Van der Velde M, Wallach D, Wang E, Webber H, Wolf J, Xiao L, Zhang Z, Zhao Z, Zhu Y, Ewert F. Climate change impact and adaptation for wheat protein. Glob Chang Biol 2019; 25:155-173. [PMID: 30549200 DOI: 10.1111/gcb.14481] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 09/06/2018] [Indexed: 05/20/2023]
Abstract
Wheat grain protein concentration is an important determinant of wheat quality for human nutrition that is often overlooked in efforts to improve crop production. We tested and applied a 32-multi-model ensemble to simulate global wheat yield and quality in a changing climate. Potential benefits of elevated atmospheric CO2 concentration by 2050 on global wheat grain and protein yield are likely to be negated by impacts from rising temperature and changes in rainfall, but with considerable disparities between regions. Grain and protein yields are expected to be lower and more variable in most low-rainfall regions, with nitrogen availability limiting growth stimulus from elevated CO2 . Introducing genotypes adapted to warmer temperatures (and also considering changes in CO2 and rainfall) could boost global wheat yield by 7% and protein yield by 2%, but grain protein concentration would be reduced by -1.1 percentage points, representing a relative change of -8.6%. Climate change adaptations that benefit grain yield are not always positive for grain quality, putting additional pressure on global wheat production.
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Affiliation(s)
- Senthold Asseng
- Agricultural & Biological Engineering Department, University of Florida, Gainesville, Florida
| | - Pierre Martre
- LEPSE, Université Montpellier INRA, Montpellier SupAgro, Montpellier, France
| | - Andrea Maiorano
- LEPSE, Université Montpellier INRA, Montpellier SupAgro, Montpellier, France
| | - Reimund P Rötter
- Tropical Plant Production and Agricultural Systems Modelling (TROPAGS), University of Göttingen, Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Göttingen, Göttingen, Germany
| | - Garry J O'Leary
- Department of Economic Development Jobs, Transport and Resources, Grains Innovation Park, Agriculture Victoria Research, Horsham, Victoria, Australia
| | - Glenn J Fitzgerald
- Department of Economic Development, Jobs, Transport and Resources, Agriculture Victoria Research, Horsham, Victoria, Australia
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Creswick, Victoria, Australia
| | | | - Rosella Motzo
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
| | - Francesco Giunta
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
| | - M Ali Babar
- World Food Crops Breeding, Department of Agronomy, IFAS, University of Florida, Gainesville, Florida
| | | | - Ahmed M S Kheir
- Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt
| | | | - Katharina Waha
- CSIRO Agriculture and Food, Brisbane, Queensland, Australia
| | - Alex C Ruane
- NASA Goddard Institute for Space Studies, New York, New York
| | - Pramod K Aggarwal
- CGIAR Research Program on Climate Change, Agriculture and Food Security, BISA-CIMMYT, New Delhi, India
| | - Mukhtar Ahmed
- Biological Systems Engineering, Washington State University, Pullman, Washington
- Department of Agronomy, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Juraj Balkovič
- International Institute for Applied Systems Analysis, Ecosystem Services and Management Program, Laxenburg, Austria
- Department of Soil Science, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Bruno Basso
- Department of Earth and Environmental Sciences, Michigan State University, East Lansing, Michigan
- W.K. Kellogg Biological Station, Michigan State University, East Lansing, Michigan
| | - Christian Biernath
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | - Marco Bindi
- Department of Agri-food Production and Environmental Sciences (DISPAA), University of Florence, Florence, Italy
| | | | - Andrew J Challinor
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
- Collaborative Research Program from CGIAR and Future Earth on Climate Change, Agriculture and Food Security (CCAFS), International Centre for Tropical Agriculture (CIAT), Cali, Colombia
| | | | - Benjamin Dumont
- Department Terra & AgroBioChem, Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
| | - Ehsan Eyshi Rezaei
- Institute of Crop Science and Resource Conservation INRES, University of Bonn, Bonn, Germany
- Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | | | - Roberto Ferrise
- Department of Agri-food Production and Environmental Sciences (DISPAA), University of Florence, Florence, Italy
| | | | - Sebastian Gayler
- Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Yujing Gao
- Agricultural & Biological Engineering Department, University of Florida, Gainesville, Florida
| | - Heidi Horan
- CSIRO Agriculture and Food, Brisbane, Queensland, Australia
| | - Gerrit Hoogenboom
- Agricultural & Biological Engineering Department, University of Florida, Gainesville, Florida
- Institute for Sustainable Food Systems, University of Florida, Gainesville, Florida
| | - R César Izaurralde
- Department of Geographical Sciences, University of Maryland, College Park, Maryland
- Texas A&M AgriLife Research and Extension Center, Texas A&M University, Temple, Texas
| | - Mohamed Jabloun
- Department of Agroecology, Aarhus University, Tjele, Denmark
| | - Curtis D Jones
- Department of Geographical Sciences, University of Maryland, College Park, Maryland
| | - Belay T Kassie
- Agricultural & Biological Engineering Department, University of Florida, Gainesville, Florida
| | | | - Christian Klein
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | - Ann-Kristin Koehler
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
| | - Bing Liu
- Agricultural & Biological Engineering Department, University of Florida, Gainesville, Florida
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
| | - Sara Minoli
- Potsdam Institute for Climate Impact Research, Member of the Leibniz Association, Potsdam, Germany
| | | | - Christoph Müller
- Potsdam Institute for Climate Impact Research, Member of the Leibniz Association, Potsdam, Germany
| | - Soora Naresh Kumar
- Centre for Environment Science and Climate Resilient Agriculture, Indian Agricultural Research Institute, IARI PUSA, New Delhi, India
| | - Claas Nendel
- Leibniz Centre for Agricultural Landscape Research, Müncheberg, Germany
| | | | - Taru Palosuo
- Montpellier SupAgro, INRA, CIHEAM-IAMM, CIRAD, University Montpellier, Montpellier, France
| | - John R Porter
- Plant & Environment Sciences, University Copenhagen, Taastrup, Denmark
- Lincoln University, Lincoln, New Zealand
- Montpellier SupAgro, INRA, CIHEAM-IAMM, CIRAD, University Montpellier, Montpellier, France
| | - Eckart Priesack
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg, Germany
| | | | | | - Claudio Stöckle
- Biological Systems Engineering, Washington State University, Pullman, Washington
| | | | - Thilo Streck
- Institute of Soil Science and Land Evaluation, University of Hohenheim, Stuttgart, Germany
| | - Iwan Supit
- Water & Food and Water Systems & Global Change Group, Wageningen University, Wageningen, The Netherlands
| | - Fulu Tao
- Natural Resources Institute Finland (Luke), Helsinki, Finland
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science, Beijing, China
| | | | | | - Enli Wang
- CSIRO Agriculture and Food, Canberra, Australian Capital Territory, Australia
| | - Heidi Webber
- Institute of Crop Science and Resource Conservation INRES, University of Bonn, Bonn, Germany
- Leibniz Centre for Agricultural Landscape Research, Müncheberg, Germany
| | - Joost Wolf
- Plant Production Systems, Wageningen University, Wageningen, The Netherlands
| | - Liujun Xiao
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
| | - Zhao Zhang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, China
| | - Zhigan Zhao
- CSIRO Agriculture and Food, Canberra, Australian Capital Territory, Australia
- Department of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yan Zhu
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
| | - Frank Ewert
- Institute of Crop Science and Resource Conservation INRES, University of Bonn, Bonn, Germany
- Leibniz Centre for Agricultural Landscape Research, Müncheberg, Germany
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Sukumaran S, Reynolds MP, Sansaloni C. Genome-Wide Association Analyses Identify QTL Hotspots for Yield and Component Traits in Durum Wheat Grown under Yield Potential, Drought, and Heat Stress Environments. Front Plant Sci 2018; 9:81. [PMID: 29467776 PMCID: PMC5808252 DOI: 10.3389/fpls.2018.00081] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/15/2018] [Indexed: 05/18/2023]
Abstract
Understanding the genetic bases of economically important traits is fundamentally important in enhancing genetic gains in durum wheat. In this study, a durum panel of 208 lines (comprised of elite materials and exotics from the International Maize and Wheat Improvement Center gene bank) were subjected to genome wide association study (GWAS) using 6,211 DArTseq single nucleotide polymorphisms (SNPs). The panel was phenotyped under yield potential (YP), drought stress (DT), and heat stress (HT) conditions for 2 years. Mean yield of the panel was reduced by 72% (to 1.64 t/ha) under HT and by 60% (to 2.33 t/ha) under DT, compared to YP (5.79 t/ha). Whereas, the mean yield of the panel under HT was 30% less than under DT. GWAS identified the largest number of significant marker-trait associations on chromosomes 2A and 2B with p-values 10-06 to 10-03 and the markers from the whole study explained 7-25% variation in the traits. Common markers were identified for stress tolerance indices: stress susceptibility index, stress tolerance, and stress tolerance index estimated for the traits under DT (82 cM on 2B) and HT (68 and 83 cM on 3B; 25 cM on 7A). GWAS of irrigated (YP and HT combined), stressed (DT and HT combined), combined analysis of three environments (YP + DT + HT), and its comparison with trait per se and stress indices identified QTL hotspots on chromosomes 2A (54-70 cM) and 2B (75-82 cM). This study enhances our knowledge about the molecular markers associated with grain yield and its components under different stress conditions. It identifies several marker-trait associations for further exploration and validation for marker-assisted breeding.
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Affiliation(s)
- Sivakumar Sukumaran
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Matthew P. Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
| | - Carolina Sansaloni
- Genetic Resources Program, International Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico
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30
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Silva-Perez V, Molero G, Serbin SP, Condon AG, Reynolds MP, Furbank RT, Evans JR. Hyperspectral reflectance as a tool to measure biochemical and physiological traits in wheat. J Exp Bot 2018; 69:483-496. [PMID: 29309611 PMCID: PMC5853784 DOI: 10.1093/jxb/erx421] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/06/2017] [Indexed: 05/20/2023]
Abstract
Improving photosynthesis to raise wheat yield potential has emerged as a major target for wheat physiologists. Photosynthesis-related traits, such as nitrogen per unit leaf area (Narea) and leaf dry mass per area (LMA), require laborious, destructive, laboratory-based methods, while physiological traits underpinning photosynthetic capacity, such as maximum Rubisco activity normalized to 25 °C (Vcmax25) and electron transport rate (J), require time-consuming gas exchange measurements. The aim of this study was to assess whether hyperspectral reflectance (350-2500 nm) can be used to rapidly estimate these traits on intact wheat leaves. Predictive models were constructed using gas exchange and hyperspectral reflectance data from 76 genotypes grown in glasshouses with different nitrogen levels and/or in the field under yield potential conditions. Models were developed using half of the observed data with the remainder used for validation, yielding correlation coefficients (R2 values) of 0.62 for Vcmax25, 0.7 for J, 0.81 for SPAD, 0.89 for LMA, and 0.93 for Narea, with bias <0.7%. The models were tested on elite lines and landraces that had not been used to create the models. The bias varied between -2.3% and -5.5% while relative error of prediction was similar for SPAD but slightly greater for LMA and Narea.
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Affiliation(s)
- Viridiana Silva-Perez
- CSIRO Agriculture, Canberra, ACT, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - Gemma Molero
- International Maize and Wheat Improvement Centre (CIMMYT), México, DF, Mexico
| | - Shawn P Serbin
- Environmental, and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, USA
| | - Anthony G Condon
- CSIRO Agriculture, Canberra, ACT, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT), México, DF, Mexico
| | - Robert T Furbank
- CSIRO Agriculture, Canberra, ACT, Australia
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra, ACT, Australia
| | - John R Evans
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra, ACT, Australia
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31
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Reynolds MP, Pask AJD, Hoppitt WJE, Sonder K, Sukumaran S, Molero G, Pierre CS, Payne T, Singh RP, Braun HJ, Gonzalez FG, Terrile II, Barma NCD, Hakim A, He Z, Fan Z, Novoselovic D, Maghraby M, Gad KIM, Galal EG, Hagras A, Mohamed MM, Morad AFA, Kumar U, Singh GP, Naik R, Kalappanavar IK, Biradar S, Sai Prasad SV, Chatrath R, Sharma I, Panchabhai K, Sohu VS, Mavi GS, Mishra VK, Balasubramaniam A, Jalal-Kamali MR, Khodarahmi M, Dastfal M, Tabib-Ghaffari SM, Jafarby J, Nikzad AR, Moghaddam HA, Ghojogh H, Mehraban A, Solís-Moya E, Camacho-Casas MA, Figueroa-López P, Ireta-Moreno J, Alvarado-Padilla JI, Borbón-Gracia A, Torres A, Quiche YN, Upadhyay SR, Pandey D, Imtiaz M, Rehman MU, Hussain M, Hussain M, Ud-Din R, Qamar M, Sohail M, Mujahid MY, Ahmad G, Khan AJ, Sial MA, Mustatea P, von Well E, Ncala M, de Groot S, Hussein AHA, Tahir ISA, Idris AAM, Elamein HMM, Manes Y, Joshi AK. Correction to: Strategic crossing of biomass and harvest index-source and sink-achieves genetic gains in wheat. Euphytica 2018; 214:9. [PMID: 31187787 DOI: 10.1007/s10681-017-2040-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 10/13/2017] [Indexed: 05/22/2023]
Abstract
[This corrects the article DOI: 10.1007/s10681-017-2040-z.].
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Affiliation(s)
- Matthew P Reynolds
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Alistair J D Pask
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | | | - Kai Sonder
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Sivakumar Sukumaran
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Gemma Molero
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Carolina Saint Pierre
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Thomas Payne
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Ravi P Singh
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Hans J Braun
- 1International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | | | - Ignacio I Terrile
- 3Instituto Nacional de Tecnología Agropecuaria, Pergamino, Argentina
| | - Naresh C D Barma
- 4Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
| | - Abdul Hakim
- 4Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
| | | | - Zheru Fan
- 6Xinjiang Academy of Agricultural Science, Wulumuqi, China
| | | | | | | | | | - Adel Hagras
- Field Crops Research Institute, Cairo, Egypt
| | | | | | | | | | - Rudra Naik
- 12University of Agricultural Sciences, Dharwad, India
| | | | - Suma Biradar
- 12University of Agricultural Sciences, Dharwad, India
| | | | - Ravish Chatrath
- Indian Institute of Wheat and Barley Research, Karnal, India
| | - Indu Sharma
- Indian Institute of Wheat and Barley Research, Karnal, India
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Ernesto Solís-Moya
- 21Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | - Miguel A Camacho-Casas
- 21Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | - Pedro Figueroa-López
- 21Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | - Javier Ireta-Moreno
- 21Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | | | - Alberto Borbón-Gracia
- 21Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | | | | | | | - Deepak Pandey
- Nepal Agriculture Research Council, Bhairahawa, Nepal
| | | | | | - Manzoor Hussain
- Regional Agricultural Research Institute, Bahawalpur, Pakistan
| | - Makhdoom Hussain
- 26Wheat Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Riaz Ud-Din
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Maqsood Qamar
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Muhammad Sohail
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Muhammad Y Mujahid
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Gulzar Ahmad
- Cereal Crop Research Institute, Nowshera-Pirsabak, Pakistan
| | - Abdul J Khan
- Nuclear Institute for Food and Agriculture, Tarnab-Peshawar, Pakistan
| | | | - Pompiliu Mustatea
- National Agricultural Research and Development Institute, Fundulea, Romania
| | | | - Moses Ncala
- Small Grain Institute, Bethlehem, South Africa
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32
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Reynolds MP, Pask AJD, Hoppitt WJE, Sonder K, Sukumaran S, Molero G, Pierre CS, Payne T, Singh RP, Braun HJ, Gonzalez FG, Terrile II, Barma NCD, Hakim A, He Z, Fan Z, Novoselovic D, Maghraby M, Gad KIM, Galal EG, Hagras A, Mohamed MM, Morad AFA, Kumar U, Singh GP, Naik R, Kalappanavar IK, Biradar S, Sai Prasad SV, Chatrath R, Sharma I, Panchabhai K, Sohu VS, Mavi GS, Mishra VK, Balasubramaniam A, Jalal-Kamali MR, Khodarahmi M, Dastfal M, Tabib-Ghaffari SM, Jafarby J, Nikzad AR, Moghaddam HA, Ghojogh H, Mehraban A, Solís-Moya E, Camacho-Casas MA, Figueroa-López P, Ireta-Moreno J, Alvarado-Padilla JI, Borbón-Gracia A, Torres A, Quiche YN, Upadhyay SR, Pandey D, Imtiaz M, Rehman MU, Hussain M, Hussain M, Ud-Din R, Qamar M, Sohail M, Mujahid MY, Ahmad G, Khan AJ, Sial MA, Mustatea P, von Well E, Ncala M, de Groot S, Hussein AHA, Tahir ISA, Idris AAM, Elamein HMM, Manes Y, Joshi AK. Correction to: Strategic crossing of biomass and harvest index-source and sink-achieves genetic gains in wheat. Euphytica 2017; 214:9. [PMID: 31187787 PMCID: PMC6445510 DOI: 10.1007/s10681-017-2086-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 10/13/2017] [Indexed: 05/24/2023]
Abstract
[This corrects the article DOI: 10.1007/s10681-017-2040-z.].
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Affiliation(s)
- Matthew P. Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Alistair J. D. Pask
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | | | - Kai Sonder
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Sivakumar Sukumaran
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Gemma Molero
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Carolina Saint Pierre
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Thomas Payne
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Ravi P. Singh
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | - Hans J. Braun
- International Maize and Wheat Improvement Center (CIMMYT), Apdo, 6-641, 06600 Mexico, DF Mexico
| | | | | | | | - Abdul Hakim
- Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
| | | | - Zheru Fan
- Xinjiang Academy of Agricultural Science, Wulumuqi, China
| | | | | | | | | | - Adel Hagras
- Field Crops Research Institute, Cairo, Egypt
| | | | | | | | | | - Rudra Naik
- University of Agricultural Sciences, Dharwad, India
| | | | - Suma Biradar
- University of Agricultural Sciences, Dharwad, India
| | | | - Ravish Chatrath
- Indian Institute of Wheat and Barley Research, Karnal, India
| | - Indu Sharma
- Indian Institute of Wheat and Barley Research, Karnal, India
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Ernesto Solís-Moya
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | | | - Pedro Figueroa-López
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | - Javier Ireta-Moreno
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | | | - Alberto Borbón-Gracia
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Mexico, Mexico
| | | | | | | | - Deepak Pandey
- Nepal Agriculture Research Council, Bhairahawa, Nepal
| | | | | | - Manzoor Hussain
- Regional Agricultural Research Institute, Bahawalpur, Pakistan
| | - Makhdoom Hussain
- Wheat Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Riaz Ud-Din
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Maqsood Qamar
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Muhammad Sohail
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Muhammad Y. Mujahid
- Crop Sciences Research Institute, National Agricultural Research Council, Islamabad, Pakistan
| | - Gulzar Ahmad
- Cereal Crop Research Institute, Nowshera-Pirsabak, Pakistan
| | - Abdul J. Khan
- Nuclear Institute for Food and Agriculture, Tarnab-Peshawar, Pakistan
| | | | - Pompiliu Mustatea
- National Agricultural Research and Development Institute, Fundulea, Romania
| | | | - Moses Ncala
- Small Grain Institute, Bethlehem, South Africa
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33
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Wang E, Martre P, Zhao Z, Ewert F, Maiorano A, Rötter RP, Kimball BA, Ottman MJ, Wall GW, White JW, Reynolds MP, Alderman PD, Aggarwal PK, Anothai J, Basso B, Biernath C, Cammarano D, Challinor AJ, De Sanctis G, Doltra J, Dumont B, Fereres E, Garcia-Vila M, Gayler S, Hoogenboom G, Hunt LA, Izaurralde RC, Jabloun M, Jones CD, Kersebaum KC, Koehler AK, Liu L, Müller C, Kumar SN, Nendel C, O'Leary G, Olesen JE, Palosuo T, Priesack E, Rezaei EE, Ripoche D, Ruane AC, Semenov MA, Shcherbak I, Stöckle C, Stratonovitch P, Streck T, Supit I, Tao F, Thorburn P, Waha K, Wallach D, Wang Z, Wolf J, Zhu Y, Asseng S. Author Correction: The uncertainty of crop yield projections is reduced by improved temperature response functions. Nat Plants 2017; 3:833. [PMID: 28955035 DOI: 10.1038/s41477-017-0032-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nature Plants 3, 17102 (2017); published online 17 July 2017; corrected online 27 September 2017.
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Affiliation(s)
- Enli Wang
- CSIRO Agriculture and Food, Black Mountain, ACT, 2601, Australia.
| | - Pierre Martre
- UMR LEPSE, INRA, Montpellier SupAgro, 2 Place Viala, 34 060, Montpellier, France
| | - Zhigan Zhao
- CSIRO Agriculture and Food, Black Mountain, ACT, 2601, Australia
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Frank Ewert
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, 53115, Bonn, Germany
- Institute of Landscape Systems Analysis, Leibniz Centre for Agricultural Landscape Research, 15374, Müncheberg, Germany
| | - Andrea Maiorano
- UMR LEPSE, INRA, Montpellier SupAgro, 2 Place Viala, 34 060, Montpellier, France
| | - Reimund P Rötter
- Department of Crop Sciences, University of Goettingen, Tropical Plant Production and Agricultural Systems Modelling (TROPAGS), 37077, Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Büsgenweg 1, 37077, Göttingen, Germany
| | - Bruce A Kimball
- USDA, Agricultural Research Service, U.S. Arid-Land Agricultural Research Center, Maricopa, AZ, 85138, USA
| | - Michael J Ottman
- The School of Plant Sciences, University of Arizona, Tucson, AZ, 85721, USA
| | - Gerard W Wall
- USDA, Agricultural Research Service, U.S. Arid-Land Agricultural Research Center, Maricopa, AZ, 85138, USA
| | - Jeffrey W White
- USDA, Agricultural Research Service, U.S. Arid-Land Agricultural Research Center, Maricopa, AZ, 85138, USA
| | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT) Apdo, 06600, Mexico, D.F, Mexico
| | - Phillip D Alderman
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT) Apdo, 06600, Mexico, D.F, Mexico
| | - Pramod K Aggarwal
- CGIAR Research Program on Climate Change, Agriculture and Food Security, Borlaug Institute for South Asia, International Maize and Wheat Improvement Center (CIMMYT), New Delhi, 110012, India
| | - Jakarat Anothai
- AgWeatherNet Program, Washington State University, Prosser, WA, 99350-8694, USA
| | - Bruno Basso
- Department of Earth and Environmental Sciences and W.K. Kellogg Biological Station, Michigan State University, East Lansing, MI, 48823, USA
| | - Christian Biernath
- Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Biochemical Plant Pathology, Neuherberg, 85764, Germany
| | - Davide Cammarano
- Agricultural and Biological Engineering Department, University of Florida, Gainesville, FL, 32611, USA
| | - Andrew J Challinor
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, LS29JT, UK
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Km 17, Recta Cali-Palmira Apartado Aéreo, 6713, Cali, Colombia
| | - Giacomo De Sanctis
- GMO Unit, European Food Safety Authority (EFSA), Via Carlo Magno, 1A, 43126, Parma, Italy
| | - Jordi Doltra
- Cantabrian Agricultural Research and Training Centre (CIFA), 39600, Muriedas, Spain
| | - Benjamin Dumont
- Department of Earth and Environmental Sciences and W.K. Kellogg Biological Station, Michigan State University, East Lansing, MI, 48823, USA
| | - Elias Fereres
- Dep. Agronomia, University of Cordoba, Apartado 3048, 14080, Cordoba, Spain
- IAS-CSIC, Cordoba, 14080, Spain
| | - Margarita Garcia-Vila
- Dep. Agronomia, University of Cordoba, Apartado 3048, 14080, Cordoba, Spain
- IAS-CSIC, Cordoba, 14080, Spain
| | - Sebastian Gayler
- Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599, Stuttgart, Germany
| | - Gerrit Hoogenboom
- AgWeatherNet Program, Washington State University, Prosser, WA, 99350-8694, USA
| | - Leslie A Hunt
- Department of Plant Agriculture, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Roberto C Izaurralde
- Department of Geographical Sciences, University of Maryland, College Park, MD, 20742, USA
- Texas A&M AgriLife Research and Extension Center, Texas A&M University, Temple, TX, 76502, USA
| | - Mohamed Jabloun
- Department of Agroecology, Aarhus University, 8830, Tjele, Denmark
| | - Curtis D Jones
- Department of Geographical Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Kurt C Kersebaum
- Institute of Landscape Systems Analysis, Leibniz Centre for Agricultural Landscape Research, 15374, Müncheberg, Germany
| | - Ann-Kristin Koehler
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, LS29JT, UK
| | - Leilei Liu
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Christoph Müller
- Potsdam Institute for Climate Impact Research, 14473, Potsdam, Germany
| | - Soora Naresh Kumar
- Centre for Environment Science and Climate Resilient Agriculture, Indian Agricultural Research Institute, IARI PUSA, New Delhi, 110 012, India
| | - Claas Nendel
- Institute of Landscape Systems Analysis, Leibniz Centre for Agricultural Landscape Research, 15374, Müncheberg, Germany
| | - Garry O'Leary
- Department of Economic Development, Landscape & Water Sciences, Jobs, Transport and Resources, Horsham, 3400, Australia
| | - Jørgen E Olesen
- Department of Agroecology, Aarhus University, 8830, Tjele, Denmark
| | - Taru Palosuo
- Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790, Helsinki, Finland
| | - Eckart Priesack
- Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Biochemical Plant Pathology, Neuherberg, 85764, Germany
| | - Ehsan Eyshi Rezaei
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, 53115, Bonn, Germany
| | | | - Alex C Ruane
- NASA Goddard Institute for Space Studies, New York, NY, 10025, USA
| | - Mikhail A Semenov
- Computational and Systems Biology Department, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK
| | - Iurii Shcherbak
- Department of Earth and Environmental Sciences and W.K. Kellogg Biological Station, Michigan State University, East Lansing, MI, 48823, USA
| | - Claudio Stöckle
- Biological Systems Engineering, Washington State University, Pullman, WA, 99164-6120, USA
| | - Pierre Stratonovitch
- Computational and Systems Biology Department, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK
| | - Thilo Streck
- Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599, Stuttgart, Germany
| | - Iwan Supit
- PPS and WSG & CALM, Wageningen University, 6700AA, Wageningen, The Netherlands
| | - Fulu Tao
- Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790, Helsinki, Finland
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science, Beijing, 100101, China
| | - Peter Thorburn
- CSIRO Agriculture and Food, St Lucia, QLD, 4067, Australia
| | - Katharina Waha
- Potsdam Institute for Climate Impact Research, 14473, Potsdam, Germany
| | - Daniel Wallach
- INRA, UMR 1248 Agrosystèmes et développement territorial (AGIR), 31 326, Castanet-Tolosan, France
| | - Zhimin Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Joost Wolf
- PPS and WSG & CALM, Wageningen University, 6700AA, Wageningen, The Netherlands
| | - Yan Zhu
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Senthold Asseng
- Agricultural and Biological Engineering Department, University of Florida, Gainesville, FL, 32611, USA
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Wang E, Martre P, Zhao Z, Ewert F, Maiorano A, Rötter RP, Kimball BA, Ottman MJ, Wall GW, White JW, Reynolds MP, Alderman PD, Aggarwal PK, Anothai J, Basso B, Biernath C, Cammarano D, Challinor AJ, De Sanctis G, Doltra J, Fereres E, Garcia-Vila M, Gayler S, Hoogenboom G, Hunt LA, Izaurralde RC, Jabloun M, Jones CD, Kersebaum KC, Koehler AK, Liu L, Müller C, Kumar SN, Nendel C, O'Leary G, Olesen JE, Palosuo T, Priesack E, Rezaei EE, Ripoche D, Ruane AC, Semenov MA, Shcherbak I, Stöckle C, Stratonovitch P, Streck T, Supit I, Tao F, Thorburn P, Waha K, Wallach D, Wang Z, Wolf J, Zhu Y, Asseng S. Erratum: The uncertainty of crop yield projections is reduced by improved temperature response functions. Nat Plants 2017; 3:17125. [PMID: 28770816 DOI: 10.1038/nplants.2017.125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This corrects the article DOI: 10.1038/nplants.2017.102.
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Reynolds MP, Braun HJ, Cavalieri AJ, Chapotin S, Davies WJ, Ellul P, Feuillet C, Govaerts B, Kropff MJ, Lucas H, Nelson J, Powell W, Quilligan E, Rosegrant MW, Singh RP, Sonder K, Tang H, Visscher S, Wang R. Improving global integration of crop research. Science 2017; 357:359-360. [PMID: 28751598 PMCID: PMC6510290 DOI: 10.1126/science.aam8559] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Field laboratories in realistic crop environments are needed
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Affiliation(s)
- M P Reynolds
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico.
| | - H J Braun
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | | | - S Chapotin
- U.S. Agency for International Development, Washington, DC, USA
| | - W J Davies
- Global Plant Council and Lancaster University, Lancaster, UK
| | - P Ellul
- CGIAR System Organization, Montpellier, France
| | - C Feuillet
- Crop Science Division, Bayer, Morrisville, USA
| | - B Govaerts
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | - M J Kropff
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | - H Lucas
- Wheat Initiative and National Institute for Agricultural Research, Paris, France
| | - J Nelson
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | - W Powell
- Scotland's Rural College, Edinburgh, UK
| | - E Quilligan
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | - M W Rosegrant
- International Food Policy Research Institute, Washington, DC, USA
| | - Ravi P Singh
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | - K Sonder
- International Maize and Wheat Improvement Center, Mexico D.F., Mexico
| | - H Tang
- Chinese Academy of Agricultural Sciences, Beijing, China
| | - S Visscher
- Biotechnology and Biological Sciences Research Council, Swindon, UK
| | - R Wang
- Food and Agriculture Organization of the United Nations, Rome, Italy
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36
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Wang E, Martre P, Zhao Z, Ewert F, Maiorano A, Rötter RP, Kimball BA, Ottman MJ, Wall GW, White JW, Reynolds MP, Alderman PD, Aggarwal PK, Anothai J, Basso B, Biernath C, Cammarano D, Challinor AJ, De Sanctis G, Doltra J, Dumont B, Fereres E, Garcia-Vila M, Gayler S, Hoogenboom G, Hunt LA, Izaurralde RC, Jabloun M, Jones CD, Kersebaum KC, Koehler AK, Liu L, Müller C, Naresh Kumar S, Nendel C, O'Leary G, Olesen JE, Palosuo T, Priesack E, Eyshi Rezaei E, Ripoche D, Ruane AC, Semenov MA, Shcherbak I, Stöckle C, Stratonovitch P, Streck T, Supit I, Tao F, Thorburn P, Waha K, Wallach D, Wang Z, Wolf J, Zhu Y, Asseng S. The uncertainty of crop yield projections is reduced by improved temperature response functions. Nat Plants 2017; 3:17102. [PMID: 28714956 DOI: 10.1038/nplants.2017.102] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 06/05/2017] [Indexed: 05/22/2023]
Abstract
Increasing the accuracy of crop productivity estimates is a key element in planning adaptation strategies to ensure global food security under climate change. Process-based crop models are effective means to project climate impact on crop yield, but have large uncertainty in yield simulations. Here, we show that variations in the mathematical functions currently used to simulate temperature responses of physiological processes in 29 wheat models account for >50% of uncertainty in simulated grain yields for mean growing season temperatures from 14 °C to 33 °C. We derived a set of new temperature response functions that when substituted in four wheat models reduced the error in grain yield simulations across seven global sites with different temperature regimes by 19% to 50% (42% average). We anticipate the improved temperature responses to be a key step to improve modelling of crops under rising temperature and climate change, leading to higher skill of crop yield projections.
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Affiliation(s)
- Enli Wang
- CSIRO Agriculture and Food, Black Mountain, Australian Capital Territory 2601, Australia
| | - Pierre Martre
- UMR LEPSE, INRA, Montpellier SupAgro, 2 Place Viala, 34 060 Montpellier, France
| | - Zhigan Zhao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- CSIRO Agriculture and Food, Black Mountain, Australian Capital Territory 2601, Australia
| | - Frank Ewert
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, 53115 Bonn, Germany
- Institute of Landscape Systems Analysis, Leibniz Centre for Agricultural Landscape Research, 15374 Müncheberg, Germany
| | - Andrea Maiorano
- UMR LEPSE, INRA, Montpellier SupAgro, 2 Place Viala, 34 060 Montpellier, France
| | - Reimund P Rötter
- Department of Crop Sciences, University of Goettingen, Tropical Plant Production and Agricultural Systems Modelling (TROPAGS), 37077 Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Goettingen, Büsgenweg 1, 37077 Göttingen, Germany
| | - Bruce A Kimball
- USDA, Agricultural Research Service, U.S. Arid-Land Agricultural Research Center, Maricopa, Arizona 85138, USA
| | - Michael J Ottman
- The School of Plant Sciences, University of Arizona, Tucson, Arizona 85721, USA
| | - Gerard W Wall
- USDA, Agricultural Research Service, U.S. Arid-Land Agricultural Research Center, Maricopa, Arizona 85138, USA
| | - Jeffrey W White
- USDA, Agricultural Research Service, U.S. Arid-Land Agricultural Research Center, Maricopa, Arizona 85138, USA
| | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT) Apdo, 06600 Mexico, D.F, Mexico
| | - Phillip D Alderman
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT) Apdo, 06600 Mexico, D.F, Mexico
| | - Pramod K Aggarwal
- CGIAR Research Program on Climate Change, Agriculture and Food Security, Borlaug Institute for South Asia, International Maize and Wheat Improvement Center (CIMMYT), New Delhi 110012, India
| | - Jakarat Anothai
- AgWeatherNet Program, Washington State University, Prosser, Washington 99350-8694, USA
| | - Bruno Basso
- Department of Earth and Environmental Sciences and W.K. Kellogg Biological Station, Michigan State University East Lansing, Michigan 48823, USA
| | - Christian Biernath
- Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Biochemical Plant Pathology, Neuherberg, 85764, Germany
| | - Davide Cammarano
- Agricultural and Biological Engineering Department, University of Florida, Gainesville, Florida 32611, USA
| | - Andrew J Challinor
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds LS29JT, UK
- CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), Km 17, Recta Cali-Palmira Apartado Aéreo 6713, Cali, Colombia
| | - Giacomo De Sanctis
- GMO Unit, European Food Safety Authority (EFSA), Via Carlo Magno, 1A, 43126 Parma, Italy
| | - Jordi Doltra
- Cantabrian Agricultural Research and Training Centre (CIFA), 39600 Muriedas, Spain
| | | | - Elias Fereres
- Dep. Agronomia, University of Cordoba, Apartado 3048, 14080 Cordoba, Spain
- IAS-CSIC, Cordoba 14080, Spain
| | - Margarita Garcia-Vila
- Dep. Agronomia, University of Cordoba, Apartado 3048, 14080 Cordoba, Spain
- IAS-CSIC, Cordoba 14080, Spain
| | - Sebastian Gayler
- Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599 Stuttgart, Germany
| | - Gerrit Hoogenboom
- AgWeatherNet Program, Washington State University, Prosser, Washington 99350-8694, USA
| | - Leslie A Hunt
- Department of Plant Agriculture, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Roberto C Izaurralde
- Department of Geographical Sciences, University of Maryland, College Park, Maryland 20742, USA
- Texas A&M AgriLife Research and Extension Center, Texas A&M University, Temple, Texas 76502, USA
| | - Mohamed Jabloun
- Department of Agroecology, Aarhus University, 8830 Tjele, Denmark
| | - Curtis D Jones
- Department of Geographical Sciences, University of Maryland, College Park, Maryland 20742, USA
| | - Kurt C Kersebaum
- Institute of Landscape Systems Analysis, Leibniz Centre for Agricultural Landscape Research, 15374 Müncheberg, Germany
| | - Ann-Kristin Koehler
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds LS29JT, UK
| | - Leilei Liu
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Christoph Müller
- Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany
| | - Soora Naresh Kumar
- Centre for Environment Science and Climate Resilient Agriculture, Indian Agricultural Research Institute, IARI PUSA, New Delhi 110 012, India
| | - Claas Nendel
- Institute of Landscape Systems Analysis, Leibniz Centre for Agricultural Landscape Research, 15374 Müncheberg, Germany
| | - Garry O'Leary
- Department of Economic Development, Landscape &Water Sciences, Jobs, Transport and Resources, Horsham 3400, Australia
| | - Jørgen E Olesen
- Department of Agroecology, Aarhus University, 8830 Tjele, Denmark
| | - Taru Palosuo
- Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790 Helsinki, Finland
| | - Eckart Priesack
- Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Biochemical Plant Pathology, Neuherberg, 85764, Germany
| | - Ehsan Eyshi Rezaei
- Institute of Crop Science and Resource Conservation (INRES), University of Bonn, 53115 Bonn, Germany
| | | | - Alex C Ruane
- NASA Goddard Institute for Space Studies, New York, New York 10025, USA
| | - Mikhail A Semenov
- Computational and Systems Biology Department, Rothamsted Research, Harpenden, Herts AL5 2JQ, UK
| | - Iurii Shcherbak
- Department of Earth and Environmental Sciences and W.K. Kellogg Biological Station, Michigan State University East Lansing, Michigan 48823, USA
| | - Claudio Stöckle
- Biological Systems Engineering, Washington State University, Pullman, Washington 99164-6120, USA
| | - Pierre Stratonovitch
- Computational and Systems Biology Department, Rothamsted Research, Harpenden, Herts AL5 2JQ, UK
| | - Thilo Streck
- Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599 Stuttgart, Germany
| | - Iwan Supit
- PPS and WSG &CALM, Wageningen University, 6700AA Wageningen, The Netherlands
| | - Fulu Tao
- Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790 Helsinki, Finland
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
| | - Peter Thorburn
- CSIRO Agriculture and Food, St Lucia, Queensland 4067, Australia
| | - Katharina Waha
- Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany
| | - Daniel Wallach
- INRA, UMR 1248 Agrosystèmes et développement territorial (AGIR), 31 326 Castanet-Tolosan, France
| | - Zhimin Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Joost Wolf
- PPS and WSG &CALM, Wageningen University, 6700AA Wageningen, The Netherlands
| | - Yan Zhu
- National Engineering and Technology Center for Information Agriculture, Key Laboratory for Crop System Analysis and Decision Making, Ministry of Agriculture, Jiangsu Key Laboratory for Information Agriculture, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Senthold Asseng
- Agricultural and Biological Engineering Department, University of Florida, Gainesville, Florida 32611, USA
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Valluru R, Reynolds MP, Davies WJ, Sukumaran S. Phenotypic and genome-wide association analysis of spike ethylene in diverse wheat genotypes under heat stress. New Phytol 2017; 214:271-283. [PMID: 27918628 DOI: 10.1111/nph.14367] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 10/26/2016] [Indexed: 05/19/2023]
Abstract
The gaseous phytohormone ethylene plays an important role in spike development in wheat (Triticum aestivum). However, the genotypic variation and the genomic regions governing spike ethylene (SET) production in wheat under long-term heat stress remain unexplored. We investigated genotypic variation in the production of SET and its relationship with spike dry weight (SDW) in 130 diverse wheat elite lines and landraces under heat-stressed field conditions. We employed an Illumina iSelect 90K single nucleotide polymorphism (SNP) genotyping array to identify the genetic loci for SET and SDW through a genome-wide association study (GWAS) in a subset of the Wheat Association Mapping Initiative (WAMI) panel. The SET and SDW exhibited appreciable genotypic variation among wheat genotypes at the anthesis stage. There was a strong negative correlation between SET and SDW. The GWAS uncovered five and 32 significant SNPs for SET, and 22 and 142 significant SNPs for SDW, in glasshouse and field conditions, respectively. Some of these SNPs closely localized to the SNPs for plant height, suggesting close associations between plant height and spike-related traits. The phenotypic and genetic elucidation of SET and its relationship with SDW supports future efforts toward gene discovery and breeding wheat cultivars with reduced ethylene effects on yield under heat stress.
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Affiliation(s)
- Ravi Valluru
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), El Batan, CP 56237, Mexico
- Plant Biology Department, Lancaster Environment Center, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), El Batan, CP 56237, Mexico
| | - William J Davies
- Plant Biology Department, Lancaster Environment Center, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Sivakumar Sukumaran
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), El Batan, CP 56237, Mexico
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38
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Sukumaran S, Crossa J, Jarquin D, Lopes M, Reynolds MP. Genomic Prediction with Pedigree and Genotype × Environment Interaction in Spring Wheat Grown in South and West Asia, North Africa, and Mexico. G3 (Bethesda) 2017; 7:481-495. [PMID: 27903632 PMCID: PMC5295595 DOI: 10.1534/g3.116.036251] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 11/24/2016] [Indexed: 01/01/2023]
Abstract
Developing genomic selection (GS) models is an important step in applying GS to accelerate the rate of genetic gain in grain yield in plant breeding. In this study, seven genomic prediction models under two cross-validation (CV) scenarios were tested on 287 advanced elite spring wheat lines phenotyped for grain yield (GY), thousand-grain weight (GW), grain number (GN), and thermal time for flowering (TTF) in 18 international environments (year-location combinations) in major wheat-producing countries in 2010 and 2011. Prediction models with genomic and pedigree information included main effects and interaction with environments. Two random CV schemes were applied to predict a subset of lines that were not observed in any of the 18 environments (CV1), and a subset of lines that were not observed in a set of the environments, but were observed in other environments (CV2). Genomic prediction models, including genotype × environment (G×E) interaction, had the highest average prediction ability under the CV1 scenario for GY (0.31), GN (0.32), GW (0.45), and TTF (0.27). For CV2, the average prediction ability of the model including the interaction terms was generally high for GY (0.38), GN (0.43), GW (0.63), and TTF (0.53). Wheat lines in site-year combinations in Mexico and India had relatively high prediction ability for GY and GW. Results indicated that prediction ability of lines not observed in certain environments could be relatively high for genomic selection when predicting G×E interaction in multi-environment trials.
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Affiliation(s)
- Sivakumar Sukumaran
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), El Batan, Texcoco CP 56237, Mexico
| | - Jose Crossa
- Biometrics and Statistics Unit, CIMMYT, El Batan, Texcoco CP 56237, Mexico
| | - Diego Jarquin
- Department of Agronomy and Horticulture, University of Nebraska, Lincoln, Nebraska 68583
| | - Marta Lopes
- Global Wheat Program, CIMMYT, Emex, 06511 Ankara, Turkey
| | - Matthew P Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT), El Batan, Texcoco CP 56237, Mexico
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Pinto RS, Lopes MS, Collins NC, Reynolds MP. Modelling and genetic dissection of staygreen under heat stress. Theor Appl Genet 2016; 129:2055-2074. [PMID: 27545985 PMCID: PMC5069319 DOI: 10.1007/s00122-016-2757-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 07/22/2016] [Indexed: 05/18/2023]
Abstract
KEY MESSAGE Staygreen traits are associated with heat tolerance in bread wheat. QTL for staygreen and related traits were identified across the genome co-located with agronomic and physiological traits associated to plant performance under heat stress. Plant chlorophyll retention-staygreen-is considered a valuable trait under heat stress. Five experiments with the Seri/Babax wheat mapping population were sown in Mexico under hot-irrigated environments. Normalized difference vegetation index (NDVI) during plant growth was measured regularly and modelled to capture the dynamics of plant greenness decay, including staygreen (Stg) at physiological maturity which was estimated by regression of NDVI during grainfilling. The rate of senescence, the percentage of plant greenness decay, and the area under the curve were also estimated based on NDVI measurements. While Stg and the best fitted curve were highly environment dependent, both traits showed strong (positive for Stg) correlations with yield, grainfilling rates, and extended grainfilling periods, while associations with kernel number and kernel weight were weak. Stg expression was largely dependent on rate of senescence which was related to the pattern of the greenness decay curve and the initial NDVI. QTL analyses revealed a total of 44 loci across environments linked to Stg and related traits, distributed across the genome, with the strongest and most repeatable effects detected on chromosomes 1B, 2A, 2B, 4A, 4B and 7D. Of these, some were common with regions controlling phenology but independent regions were also identified. The co-location of QTL for Stg and performance traits in this study confirms that the staygreen phenotype is a useful trait for productivity enhancement in hot-irrigated environments.
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Affiliation(s)
- R Suzuky Pinto
- International Maize and Wheat Improvement Center (CIMMYT,Int.), Apdo. Postal 6-641, 06600, México, D.F., Mexico
- Australian Centre for Plant and Functional Genomics (ACPFG), School of Agriculture Food and Wine, University of Adelaide, Glen Osmond, Adelaide, SA, 5064, Australia
| | - Marta S Lopes
- International Maize and Wheat Improvement Center (CIMMYT,Int.), Apdo. Postal 6-641, 06600, México, D.F., Mexico
| | - Nicholas C Collins
- Australian Centre for Plant and Functional Genomics (ACPFG), School of Agriculture Food and Wine, University of Adelaide, Glen Osmond, Adelaide, SA, 5064, Australia
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT,Int.), Apdo. Postal 6-641, 06600, México, D.F., Mexico.
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Thiry AA, Chavez Dulanto PN, Reynolds MP, Davies WJ. How can we improve crop genotypes to increase stress resilience and productivity in a future climate? A new crop screening method based on productivity and resistance to abiotic stress. J Exp Bot 2016; 67:5593-5603. [PMID: 27677299 PMCID: PMC5066489 DOI: 10.1093/jxb/erw330] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The need to accelerate the selection of crop genotypes that are both resistant to and productive under abiotic stress is enhanced by global warming and the increase in demand for food by a growing world population. In this paper, we propose a new method for evaluation of wheat genotypes in terms of their resilience to stress and their production capacity. The method quantifies the components of a new index related to yield under abiotic stress based on previously developed stress indices, namely the stress susceptibility index, the stress tolerance index, the mean production index, the geometric mean production index, and the tolerance index, which were created originally to evaluate drought adaptation. The method, based on a scoring scale, offers simple and easy visualization and identification of resilient, productive and/or contrasting genotypes according to grain yield. This new selection method could help breeders and researchers by defining clear and strong criteria to identify genotypes with high resilience and high productivity and provide a clear visualization of contrasts in terms of grain yield production under stress. It is also expected that this methodology will reduce the time required for first selection and the number of first-selected genotypes for further evaluation by breeders and provide a basis for appropriate comparisons of genotypes that would help reveal the biology behind high stress productivity of crops.
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Affiliation(s)
- Arnauld A Thiry
- International Maize and Wheat Improvement Centre (CIMMYT), Crrtra. Mexico-Veracruz km 45, Col. El Batan, Texcoco, Edo. de Mexico, CP 56130, Mexico The Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster LA1 4YQ, UK
| | - Perla N Chavez Dulanto
- International Maize and Wheat Improvement Centre (CIMMYT), Crrtra. Mexico-Veracruz km 45, Col. El Batan, Texcoco, Edo. de Mexico, CP 56130, Mexico
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT), Crrtra. Mexico-Veracruz km 45, Col. El Batan, Texcoco, Edo. de Mexico, CP 56130, Mexico
| | - William J Davies
- The Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster LA1 4YQ, UK
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Gonzalez-Navarro OE, Griffiths S, Molero G, Reynolds MP, Slafer GA. Variation in developmental patterns among elite wheat lines and relationships with yield, yield components and spike fertility. Field Crops Res 2016; 196:294-304. [PMID: 28148999 PMCID: PMC5268350 DOI: 10.1016/j.fcr.2016.07.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 07/19/2016] [Accepted: 07/22/2016] [Indexed: 05/10/2023]
Abstract
Developmental patterns strongly influence spike fertility and grain number, which are primarily determined during the stem elongation period (i.e. time between terminal spikelet phase and anthesis). It has been proposed that the length of the stem elongation phase may, to an extent, affect grain number; thus it would be beneficial to identify genetic variation for the duration of this phase in elite germplasm. Variation in these developmental patterns was studied using 27 elite wheat lines in four experiments across three growing seasons. The results showed that the length of the stem elongation phase was (i) only slightly related to the period from seedling emergence to terminal spikelet, and (ii) more relevant than it for determining time to anthesis. Thus, phenological phases were largely independent and any particular time to anthesis may be reached with different combinations of component phases. Yield components were largely explained by fruiting efficiency of the elite lines used: the relationships were strongly positive and strongly negative with grain number and with grain weight, respectively. Although fruiting efficiency showed a positive trend with the duration of stem elongation that was not significant, a boundary function (which was highly significant) suggests that the length of this phase may impose an upper threshold for fruiting efficiency and grain number, and that maximum values of fruiting efficiency may require a relatively long stem elongation phase.
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Affiliation(s)
- Oscar E. Gonzalez-Navarro
- Crop Genetics Department, John Innes Centre, Norwich Research Park, Norwich, Norfolk NR4 7UH, UK
- CIMMYT (International Maize and Wheat Improvement Center), Apdo Postal 6-641, 06600 Mexico D.F., Mexico
| | - Simon Griffiths
- Crop Genetics Department, John Innes Centre, Norwich Research Park, Norwich, Norfolk NR4 7UH, UK
| | - Gemma Molero
- CIMMYT (International Maize and Wheat Improvement Center), Apdo Postal 6-641, 06600 Mexico D.F., Mexico
| | - Matthew P. Reynolds
- CIMMYT (International Maize and Wheat Improvement Center), Apdo Postal 6-641, 06600 Mexico D.F., Mexico
| | - Gustavo A. Slafer
- AGROTECNIO (Center for Research in Agrotechnology), and Department of Crop and Forest Sciences, University of Lleida, Av. Rovira Roure 191, 25198 Lleida, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
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Tattaris M, Reynolds MP, Chapman SC. A Direct Comparison of Remote Sensing Approaches for High-Throughput Phenotyping in Plant Breeding. Front Plant Sci 2016; 7:1131. [PMID: 27536304 PMCID: PMC4971441 DOI: 10.3389/fpls.2016.01131] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 07/15/2016] [Indexed: 05/18/2023]
Abstract
Remote sensing (RS) of plant canopies permits non-intrusive, high-throughput monitoring of plant physiological characteristics. This study compared three RS approaches using a low flying UAV (unmanned aerial vehicle), with that of proximal sensing, and satellite-based imagery. Two physiological traits were considered, canopy temperature (CT) and a vegetation index (NDVI), to determine the most viable approaches for large scale crop genetic improvement. The UAV-based platform achieves plot-level resolution while measuring several hundred plots in one mission via high-resolution thermal and multispectral imagery measured at altitudes of 30-100 m. The satellite measures multispectral imagery from an altitude of 770 km. Information was compared with proximal measurements using IR thermometers and an NDVI sensor at a distance of 0.5-1 m above plots. For robust comparisons, CT and NDVI were assessed on panels of elite cultivars under irrigated and drought conditions, in different thermal regimes, and on un-adapted genetic resources under water deficit. Correlations between airborne data and yield/biomass at maturity were generally higher than equivalent proximal correlations. NDVI was derived from high-resolution satellite imagery for only larger sized plots (8.5 × 2.4 m) due to restricted pixel density. Results support use of UAV-based RS techniques for high-throughput phenotyping for both precision and efficiency.
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Affiliation(s)
- Maria Tattaris
- International Maize and Wheat Improvement CenterTexcoco, Mexico
| | | | - Scott C. Chapman
- CSIRO Agriculture, Queensland Bioscience PrecinctQueensland, QLD, Australia
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Valluru R, Davies WJ, Reynolds MP, Dodd IC. Foliar Abscisic Acid-To-Ethylene Accumulation and Response Regulate Shoot Growth Sensitivity to Mild Drought in Wheat. Front Plant Sci 2016; 7:461. [PMID: 27148292 PMCID: PMC4834443 DOI: 10.3389/fpls.2016.00461] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/24/2016] [Indexed: 05/03/2023]
Abstract
Although, plant hormones play an important role in adjusting growth in response to environmental perturbation, the relative contributions of abscisic acid (ABA) and ethylene remain elusive. Using six spring wheat genotypes differing for stress tolerance, we show that young seedlings of the drought-tolerant (DT) group maintained or increased shoot dry weight (SDW) while the drought-susceptible (DS) group decreased SDW in response to mild drought. Both the DT and DS groups increased endogenous ABA and ethylene concentrations under mild drought compared to control. The DT and DS groups exhibited different SDW response trends, whereby the DS group decreased while the DT group increased SDW, to increased concentrations of ABA and ethylene under mild drought, although both groups decreased ABA/ethylene ratio under mild drought albeit at different levels. We concluded that SDW of the DT and DS groups might be distinctly regulated by specific ABA:ethylene ratio. Further, a foliar-spray of low concentrations (0.1 μM) of ABA increased shoot relative growth rate (RGR) in the DS group while ACC (1-aminocyclopropane-1-carboxylic acid, ethylene precursor) spray increased RGR in both groups compared to control. Furthermore, the DT group accumulated a significantly higher galactose while a significantly lower maltose in the shoot compared to the DS group. Taken all together, these results suggest an impact of ABA, ethylene, and ABA:ethylene ratio on SDW of wheat seedlings that may partly underlie a genotypic variability of different shoot growth sensitivities to drought among crop species under field conditions. We propose that phenotyping based on hormone accumulation, response and hormonal ratio would be a viable, rapid, and an early-stage selection tool aiding genotype selection for stress tolerance.
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Affiliation(s)
- Ravi Valluru
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT)El Batan, Mexico
- Plant Biology Department, Lancaster Environmental Center, Lancaster UniversityLancaster, UK
| | - William J. Davies
- Plant Biology Department, Lancaster Environmental Center, Lancaster UniversityLancaster, UK
| | - Matthew P. Reynolds
- Global Wheat Program, International Maize and Wheat Improvement Center (CIMMYT)El Batan, Mexico
| | - Ian C. Dodd
- Plant Biology Department, Lancaster Environmental Center, Lancaster UniversityLancaster, UK
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Sanchez-Bragado R, Molero G, Reynolds MP, Araus JL. Photosynthetic contribution of the ear to grain filling in wheat: a comparison of different methodologies for evaluation. J Exp Bot 2016; 67:2787-98. [PMID: 27012283 PMCID: PMC4861024 DOI: 10.1093/jxb/erw116] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The culm (particularly the flag leaf) and the ear are believed to play a major role in providing assimilates for grain filling in wheat. However, the results obtained in the past varied depending on the methodology applied. Three different methodologies were compared that aimed to assess the relative contribution of the culm (photosynthetic organs below the ear) and the ear to grain filling. The first two consisted of applications of photosynthesis inhibition treatments, including the use of the herbicide DCMU and organ shading. The third was a non-intrusive method that compared the carbon isotope composition (δ(13)C) of mature kernels with the δ(13)C of the water-soluble fraction of the peduncle, awns and glumes. Several advanced CIMMYT lines were tested under good agronomic conditions. The δ(13)C approach assigned a higher photosynthetic contribution to the ear than to the culm. However, some methodological considerations should be taken into account when applying the δ(13)C approach, particularly the sampling method used, in order to prevent post-harvest respiration. The shading approach assigned a similar contribution to the ear as to the culm. The DCMU approach assigned a greater role to the culm but herbicide application to the culm affected the ear, thus biasing the final grain weight. Moreover DCMU and shading approaches may cause compensatory effects which overestimated the contribution of unaffected organs. This study may help to develop precise phenotyping tools to identify physiological traits such as ear photosynthesis that could contribute towards increasing grain yield.
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Affiliation(s)
- Rut Sanchez-Bragado
- Unitat de Fisiologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Diagonal 643, Spain
| | - Gemma Molero
- International Maize and Wheat Improvement Center (CIMMYT), El Batán, Texcoco CP 56130, Mexico
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), El Batán, Texcoco CP 56130, Mexico
| | - Jose Luis Araus
- Unitat de Fisiologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Diagonal 643, Spain
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Rebetzke GJ, Bonnett DG, Reynolds MP. Awns reduce grain number to increase grain size and harvestable yield in irrigated and rainfed spring wheat. J Exp Bot 2016; 67:2573-86. [PMID: 26976817 PMCID: PMC4861010 DOI: 10.1093/jxb/erw081] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Genotypic variation in ear morphology is linked to differences in photosynthetic potential to influence grain yield in winter cereals. Awns contribute to photosynthesis, particularly under water-limited conditions when canopy assimilation is restricted. We assessed performance of up to 45 backcross-derived, awned-awnletted NILs representing four diverse genetic backgrounds in 25 irrigated or rainfed, and droughted environments in Australia and Mexico. Mean environment grain yields were wide-ranging (1.38-7.93 t ha(-1)) with vegetative and maturity biomass, plant height, anthesis date, spike number, and harvest index all similar (P >0.05) for awned and awnletted NILs. Overall, grain yields of awned-awnletted sister-NILs were equivalent, irrespective of yield potential and genetic background. Awnletted wheats produced significantly more grains per unit area (+4%) and per spike (+5%) reflecting more fertile spikelets and grains in tertiary florets. Increases in grain number were compensated for by significant reductions in grain size (-5%) and increased frequency (+0.8%) of small, shrivelled grains ('screenings') to reduce seed-lot quality of awnletted NILs. Post-anthesis canopies of awnletted NILs were marginally warmer over all environments (+0.27 °C) but were not different and were sometimes cooler than awned NILs at cooler air temperatures. Awns develop early and represented up to 40% of total spikelet biomass prior to ear emergence. We hypothesize that the allocation of assimilate to large and rapidly developing awns decreases spikelet number and floret fertility to reduce grain number, particularly in distal florets. Individual grain size is increased to reduce screenings and to increase test weight and milling quality, particularly in droughted environments. Despite the average reduction in grain size, awnless lines could be identified that combined higher grain yield with larger grain size, increased grain protein concentration, and reduced screenings.
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Affiliation(s)
- G J Rebetzke
- CSIRO Agriculture, PO Box 1600, Canberra, ACT 2601, Australia
| | - D G Bonnett
- CSIRO Agriculture, PO Box 1600, Canberra, ACT 2601, Australia Bayer Crop Science, 6693 90th St Sabin, MN 56580 USA CIMMYT Int. Apdo. Postal 6-641, 06600 México, DF, Mexico
| | - M P Reynolds
- CIMMYT Int. Apdo. Postal 6-641, 06600 México, DF, Mexico
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Prins A, Orr DJ, Andralojc PJ, Reynolds MP, Carmo-Silva E, Parry MAJ. Rubisco catalytic properties of wild and domesticated relatives provide scope for improving wheat photosynthesis. J Exp Bot 2016; 67:1827-38. [PMID: 26798025 PMCID: PMC4783365 DOI: 10.1093/jxb/erv574] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Rubisco is a major target for improving crop photosynthesis and yield, yet natural diversity in catalytic properties of this enzyme is poorly understood. Rubisco from 25 genotypes of the Triticeae tribe, including wild relatives of bread wheat (Triticum aestivum), were surveyed to identify superior enzymes for improving photosynthesis in this crop. In vitro Rubisco carboxylation velocity (V c), Michaelis-Menten constants for CO2 (K c) and O2 (K o) and specificity factor (S c/o) were measured at 25 and 35 °C. V c and K c correlated positively, while V c and S c/o were inversely related. Rubisco large subunit genes (rbcL) were sequenced, and predicted corresponding amino acid differences analysed in relation to the corresponding catalytic properties. The effect of replacing native wheat Rubisco with counterparts from closely related species was analysed by modelling the response of photosynthesis to varying CO2 concentrations. The model predicted that two Rubisco enzymes would increase photosynthetic performance at 25 °C while only one of these also increased photosynthesis at 35 °C. Thus, under otherwise identical conditions, catalytic variation in the Rubiscos analysed is predicted to improve photosynthetic rates at physiological CO2 concentrations. Naturally occurring Rubiscos with superior properties amongst the Triticeae tribe can be exploited to improve wheat photosynthesis and crop productivity.
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Affiliation(s)
- Anneke Prins
- Plant Biology and Crop Science Department, Rothamsted Research, Harpenden AL5 2JQ UK
| | - Douglas J Orr
- Plant Biology and Crop Science Department, Rothamsted Research, Harpenden AL5 2JQ UK
| | - P John Andralojc
- Plant Biology and Crop Science Department, Rothamsted Research, Harpenden AL5 2JQ UK
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), El Batán, Texcoco CP 56130, Mexico
| | - Elizabete Carmo-Silva
- Plant Biology and Crop Science Department, Rothamsted Research, Harpenden AL5 2JQ UK
| | - Martin A J Parry
- Plant Biology and Crop Science Department, Rothamsted Research, Harpenden AL5 2JQ UK
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Reynolds MP, Quilligan E, Aggarwal PK, Bansal KC, Cavalieri AJ, Chapman SC, Chapotin SM, Datta SK, Duveiller E, Gill KS, Jagadish KS, Joshi AK, Koehler AK, Kosina P, Krishnan S, Lafitte R, Mahala RS, Muthurajan R, Paterson AH, Prasanna BM, Rakshit S, Rosegrant MW, Sharma I, Singh RP, Sivasankar S, Vadez V, Valluru R, Vara Prasad P, Yadav OP. An integrated approach to maintaining cereal productivity under climate change. Global Food Security 2016. [DOI: 10.1016/j.gfs.2016.02.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Affiliation(s)
- Ravi Valluru
- Global Wheat Program International Maize and Wheat Improvement Center (CIMMYT) El Batan Mexico
| | - Matthew P. Reynolds
- Global Wheat Program International Maize and Wheat Improvement Center (CIMMYT) El Batan Mexico
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Pinto RS, Reynolds MP. Common genetic basis for canopy temperature depression under heat and drought stress associated with optimized root distribution in bread wheat. Theor Appl Genet 2015; 128:575-85. [PMID: 25707766 PMCID: PMC4361760 DOI: 10.1007/s00122-015-2453-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 01/06/2015] [Indexed: 05/17/2023]
Abstract
QTL related to cooler canopy temperatures are associated with optimal root distribution whereby roots proliferate at depth under drought or near to surface under hot, irrigated conditions. Previous research using a bread wheat RIL population of the Seri/Babax cross showed that common QTL were associated with cooler canopies under both drought and heat-stressed conditions. A subset of RIL was grown under water-limited and hot-irrigated field environments to test how cooler canopies are related to root development. Eight sisters and the two parents were used in the study with genotypes grouped as COOL or HOT according to their respective QTL for canopy temperature and previous phenotypic data. Root mass production and residual available soil moisture were measured around anthesis at four depth profiles (from 0 to 120 cm depth). When considering different root profiles, there was a clear interaction of QTL with environment. Under water stress, the COOL genotypes showed a deeper root system allowing the extraction of 35% more water from the 30-90 cm soil profile. The strategy under heat was to concentrate more roots at the surface, in the 0-60 cm soil layer where water was more available from surface irrigation. Since COOL genotypes showed better agronomic performance, it can be concluded that their QTL are associated with more optimal root distribution in accordance with water availability under the respective stresses. The study demonstrates the importance of root development under both water-limited and hot-irrigated environments, and shows a common genetic basis for adaptation to both stresses that appears to be associated with sensitivity of roots to proliferate where water is available in the soil profile.
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Affiliation(s)
- R Suzuky Pinto
- Australian Centre for Plant Functional Genomics, University of Adelaide, Waite Campus, Glen Osmond, SA, 5064, Australia,
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Lopes MS, Dreisigacker S, Peña RJ, Sukumaran S, Reynolds MP. Genetic characterization of the wheat association mapping initiative (WAMI) panel for dissection of complex traits in spring wheat. Theor Appl Genet 2015; 128:453-64. [PMID: 25540818 DOI: 10.1007/s00122-014-2444-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 12/11/2014] [Indexed: 05/18/2023]
Abstract
The wheat association mapping initiative is appropriate for gene discovery without the confounding effects of phenology and plant height. The wheat association mapping initiative (WAMI) population is a set of 287 diverse advanced wheat lines with a narrow range of variation for days to heading (DH) and plant height (PH). This study aimed to characterize the WAMI and showed that this diverse panel has a favorable genetic background in which stress adaptive traits and their alleles contributing to final yield can be identified with reduced confounding major gene effects through genome-wide association studies (GWAS). Using single nucleotide polymorphism (SNP) markers, we observed lower gene diversity on the D genome, compared with the other genomes. Population structure was primarily related to the distribution of the 1B.1R rye translocation. The narrow range of variation for DH and PH in the WAMI population still entailed segregation for a few markers associated with the former traits, while Rht genes were associated with grain yield (GY). Genotype by environment (G × E) interaction for GY was primarily explained by Rht-B1, Vrn-A1 and markers on chromosomes 2D and 3A when running GWAS with genotype scores from the G × E biplot. The use of PC scores from the G × E biplot seems a promising tool to determine genes and markers associated with complex interactions across environments. The WAMI panel lends itself to GWAS for complex trait dissection by avoiding the confounding effects of DH and PH which were reduced to a minimum (using Rht-B1 and Vrn-A1 scores as covariables), with significant associations with GY on chromosomes 2D, 3A and 3B.
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Affiliation(s)
- M S Lopes
- CIMMYT, PO Box 39, Emek, Ankara, 06511, Turkey
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