1
|
Thakur NR, Gorthy S, Vemula A, Odeny DA, Ruperao P, Sargar PR, Mehtre SP, Kalpande HV, Habyarimana E. Genome-wide association study and expression of candidate genes for Fe and Zn concentration in sorghum grains. Sci Rep 2024; 14:12729. [PMID: 38830906 PMCID: PMC11148041 DOI: 10.1038/s41598-024-63308-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 05/27/2024] [Indexed: 06/05/2024] Open
Abstract
Sorghum germplasm showed grain Fe and Zn genetic variability, but a few varieties were biofortified with these minerals. This work contributes to narrowing this gap. Fe and Zn concentrations along with 55,068 high-quality GBS SNP data from 140 sorghum accessions were used in this study. Both micronutrients exhibited good variability with respective ranges of 22.09-52.55 ppm and 17.92-43.16 ppm. Significant marker-trait associations were identified on chromosomes 1, 3, and 5. Two major effect SNPs (S01_72265728 and S05_58213541) explained 35% and 32% of Fe and Zn phenotypic variance, respectively. The SNP S01_72265728 was identified in the cytochrome P450 gene and showed a positive effect on Fe accumulation in the kernel, while S05_58213541 was intergenic near Sobic.005G134800 (zinc-binding ribosomal protein) and showed negative effect on Zn. Tissue-specific in silico expression analysis resulted in higher levels of Sobic.003G350800 gene product in several tissues such as leaf, root, flower, panicle, and stem. Sobic.005G188300 and Sobic.001G463800 were expressed moderately at grain maturity and anthesis in leaf, root, panicle, and seed tissues. The candidate genes expressed in leaves, stems, and grains will be targeted to improve grain and stover quality. The haplotypes identified will be useful in forward genetics breeding.
Collapse
Affiliation(s)
- Niranjan Ravindra Thakur
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India
- Vasantrao Naik Marathwada Agriculture University, Parbhani, Maharashtra, India
| | - Sunita Gorthy
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India
| | - AnilKumar Vemula
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India
| | - Damaris A Odeny
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India
| | - Pradeep Ruperao
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India
| | - Pramod Ramchandra Sargar
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India
- Vasantrao Naik Marathwada Agriculture University, Parbhani, Maharashtra, India
| | | | - Hirakant V Kalpande
- Vasantrao Naik Marathwada Agriculture University, Parbhani, Maharashtra, India
| | - Ephrem Habyarimana
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Telangana, India.
| |
Collapse
|
2
|
Khan MIR, Nazir F, Maheshwari C, Chopra P, Chhillar H, Sreenivasulu N. Mineral nutrients in plants under changing environments: A road to future food and nutrition security. THE PLANT GENOME 2023; 16:e20362. [PMID: 37480222 DOI: 10.1002/tpg2.20362] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/25/2023] [Accepted: 05/20/2023] [Indexed: 07/23/2023]
Abstract
Plant nutrition is an important aspect that contributes significantly to sustainable agriculture, whereas minerals enrichment in edible source implies global human health; hence, both strategies need to be bridged to ensure "One Health" strategies. Abiotic stress-induced nutritional imbalance impairs plant growth. In this context, we discuss the molecular mechanisms related to the readjustment of nutrient pools for sustained plant growth under harsh conditions, and channeling the minerals to edible source (seeds) to address future nutritional security. This review particularly highlights interventions on (i) the physiological and molecular responses of mineral nutrients in crop plants under stressful environments; (ii) the deployment of breeding and biotechnological strategies for the optimization of nutrient acquisition, their transport, and distribution in plants under changing environments. Furthermore, the present review also infers the recent advancements in breeding and biotechnology-based biofortification approaches for nutrient enhancement in crop plants to optimize yield and grain mineral concentrations under control and stress-prone environments to address food and nutritional security.
Collapse
Affiliation(s)
| | - Faroza Nazir
- Department of Botany, Jamia Hamdard, New Delhi, India
| | - Chirag Maheshwari
- Division of Biochemistry, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | | | | | - Nese Sreenivasulu
- Consumer-Driven Grain Quality and Nutrition Center, Rice Breeding and Innovation Platform, International Rice Research Institute, Los Banos, Philippines
| |
Collapse
|
3
|
Chaudhari GR, Patel DA, Parmar DJ, Patel KC, Kumar S. Combining ability, heterosis and performance of grain yield and content of Fe, Zn and protein in bread wheat under normal and late sowing conditions. PeerJ 2023; 11:e14971. [PMID: 36919169 PMCID: PMC10008312 DOI: 10.7717/peerj.14971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 02/07/2023] [Indexed: 03/11/2023] Open
Abstract
Wheat (Triticum aestivum L.) is inherently low in protein content, Zn and Fe. Boost yield gains have unwittingly reduced grain Zn and Fe, which has had negative impacts on human health. The aim of this study was to understand the inheritance of grain yield per plant and grain Fe, Zn, and protein concentrations in bread wheat (Triticum aestivum L.) under normal and late sown conditions. Half diallel crosses were performed using 10 parents. The crosses and parents were evaluated in replicated trials for the two conditions, to assess the possibility of exploiting heterosis to improve micronutrient contents. The per se performance, heterosis, combining ability, and genetic components were estimated for different characters in both environments. The results revealed that hybrid GW 451 × GW 173 exhibited better parent heterosis (BPH) and standard heterotic effects (SH) in all environments. In both sowing conditions, the general combining ability (GCA) effects of poor × poor parents also showed high specific combining ability (SCA) effects of hybrids for both the micronutrients and protein contents. However, σ2A/σ2D greater than unity confirmed the preponderance of additive gene action for protein content, and GW 173 was identified as a good general combiner for these characteristics under both environments. SCA had positive significant (P < 0.001) correlations with BPH, SH1, SH2, and the phenotype for yield component traits and grain protein, Fe, and Zn concentrations in both conditions. A supplementary approach for biofortifying wheat grainis required to prevent malnutrition.
Collapse
Affiliation(s)
- Gita R. Chaudhari
- Department of Genetics & Plant Breeding, BACA, Anand Agricultural University, Anand, Gujarat, India
| | - D. A. Patel
- Department of Genetics & Plant Breeding, BACA, Anand Agricultural University, Anand, Gujarat, India
| | - D. J. Parmar
- Department of Statistics, BACA, Anand Agricultural University, Anand, Gujarat, India
| | - K. C. Patel
- Micronutrient Research Centre (ICAR), BACA, Anand Agricultural University, Anand, Gujarat, India
| | - Sushil Kumar
- Department of Agricultural Biotechnology, Anand Agricultural University, Anand, Gujarat, India
| |
Collapse
|
4
|
Thribhuvan R, Singh SP, Sankar MS, Singh AM, Mallik M, Singhal T, Meena JK, Satyavathi CT. Combining ability and heterosis studies for grain iron and zinc concentrations in pearl millet [ Cenchrus americanus (L). Morrone]. FRONTIERS IN PLANT SCIENCE 2023; 13:1029436. [PMID: 36762172 PMCID: PMC9905813 DOI: 10.3389/fpls.2022.1029436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 12/30/2022] [Indexed: 06/18/2023]
Abstract
Iron (Fe) and zinc (Zn) deficiency has been identified as a major food-related health issue, affecting two billion people globally. Efforts to enhance the Fe and Zn content in food grains through plant breeding are an economic and sustainable solution to combat micronutrient deficiency in resource-poor populace of Asia and Africa. Pearl millet, Cenchrus americanus (L). Morrone, considered as a hardy nutri-cereal, is the major food crop for millions of people of these nations. As an effort to enhance its grain mineral content, an investigation was conducted using line × tester analysis to generate information on the extent of heterosis, gene action, combining ability for grain yield potential, and grain mineral nutrients (Fe and Zn). The partitioning of variance attributable to parents indicated that the lines and testers differed significantly for the traits studied. For most of the attributes, hybrids that were superior to the parents in the desired direction in terms of per se performance were identified. The analysis of combining ability variance indicated the preponderance of both additive and non-additive genetic effects. Thus, reciprocal recurrent selection can be used to develop a population with high-grain Fe and Zn contents. The Fe and Zn content in grain exhibited a highly significant and positive association between them, whereas the Fe and Zn contents individually showed a negative, albeit weak, correlation with grain yield and a moderate positive relation with grain weight. This indicates that mineral nutrient contents in grains can be improved without significant compromise on yield. The consistency of these trends across the environment suggests that these findings could be directly used as guiding principles for the genetic enhancement of Fe and Zn grain content in pearl millet.
Collapse
Affiliation(s)
- R. Thribhuvan
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
- Project Co-ordinator, ICAR- Central Research Institute for Jute and Allied Fibres, Barrackpore, India
| | - S. P. Singh
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
| | - Mukesh S. Sankar
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
| | - Anju M. Singh
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
| | - M. Mallik
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
| | - Tripti Singhal
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
| | - Jitendra Kumar Meena
- Division of Genetics, ICAR- Indian Agricultural Research Institute, New Delhi, India
- Project Co-ordinator, ICAR- Central Research Institute for Jute and Allied Fibres, Barrackpore, India
| | - C. Tara Satyavathi
- ICAR- All India Coordinated Research Project on Pearl Millet, Jodhpur, India
| |
Collapse
|
5
|
Gaoh BSB, Gangashetty PI, Mohammed R, Ango IK, Dzidzienyo DK, Tongoona P, Govindaraj M. Combining ability studies of grain Fe and Zn contents of pearl millet ( Pennisetum glaucum L.) in West Africa. FRONTIERS IN PLANT SCIENCE 2023; 13:1027279. [PMID: 36684795 PMCID: PMC9854276 DOI: 10.3389/fpls.2022.1027279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/14/2022] [Indexed: 06/17/2023]
Abstract
Micronutrient malnutrition is a major challenge in Africa, where half a million children die each year because of lack of micronutrients in their food. Pearl millet is an important food and fodder crop for the people living in the Semi-Arid regions of West Africa. The present study was conducted to determine the stability, combining ability, and gene action conditions of the high level of Fe and Zn content in grain and selected agronomic traits. Hence, eight genotypes were selected based on the availability of grain Fe and Zn contents and crossed in a full diallel mating design. Progenies from an 8 × 8 diallel mating along with the parents were evaluated in an alpha lattice design with three replications in three locations for two years. The parental lines Jirani, LCIC 9702 and MORO, had positive significant general combining ability (GCA) effects for grain Fe concentration, while Jirani and MORO had positive significant GCA effects for grain Zn concentration. For the specific combining ability (SCA), among the 56 hybrids evaluated, only the hybrids LCIC 9702 × Jirani and MORO × ZANGO had positive significant SCA effects for grain Fe concentration across locations, and for grain Zn concentration, the hybrids Gamoji × MORO, LCIC 9702 × Jirani, and ICMV 167006 × Jirani had positive significant SCA effects. The reciprocal effects were significant for grain Zn concentration, grain yield, flowering time, plant height, test weight, and downy mildew incidence, suggesting that the choice of a female or male parent is critical in hybrid production. Grain Fe and Zn concentration, flowering time, plant height, panicle length, panicle girth, panicle compactness, and downy mildew incidence were found to be predominantly under additive gene action, while grain yield and test weight were predominantly under non-additive gene action. A highly positive correlation was found between grain Fe and Zn concentrations, which implies that improving grain Fe trait automatically improves the grain Zn content. The stability analysis revealed that the hybrid ICMV 167006 × Jirani was the most stable and high-yielding with a high level of grain Fe and Zn micronutrients.
Collapse
Affiliation(s)
- Bassirou Sani Boubacar Gaoh
- Pearl Millet Breeding, International Crops Research Institute for the Semi-Arid Tropics, Niamey, Niger
- West African Centre for Crop Improvement, College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Prakash I. Gangashetty
- Pearl Millet Breeding, International Crops Research Institute for the Semi-Arid Tropics, Niamey, Niger
- Pigeon Pea Breeding, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, India
| | - Riyazaddin Mohammed
- Pearl Millet Breeding, International Crops Research Institute for the Semi-Arid Tropics, Niamey, Niger
| | - Issoufou Kassari Ango
- Department of Rainfed Crop Production (DCP), Institute National de la Recherche Agronomique du Niger, Maradi, Niger
| | - Daniel Kwadjo Dzidzienyo
- West African Centre for Crop Improvement, College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Pangirayi Tongoona
- West African Centre for Crop Improvement, College of Basic and Applied Sciences, University of Ghana, Legon, Ghana
| | - Mahalingam Govindaraj
- Pigeon Pea Breeding, International Crops Research Institute for the Semi-Arid Tropics, Patancheru, India
- HarvestPlus, Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
| |
Collapse
|
6
|
Goud CA, Satturu V, Malipatil R, Viswanath A, Semalaiyappan J, Kudapa H, Rathod S, Rathore A, Govindaraj M, Thirunavukkarasu N. Identification of iron and zinc responsive genes in pearl millet using genome-wide RNA-sequencing approach. Front Nutr 2022; 9:884381. [DOI: 10.3389/fnut.2022.884381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 10/14/2022] [Indexed: 11/10/2022] Open
Abstract
Pearl millet (Pennisetum glaucum L.), an important source of iron (Fe) and zinc (Zn) for millions of families in dryland tropics, helps in eradicating micronutrient malnutrition. The crop is rich in Fe and Zn, therefore, identification of the key genes operating the mineral pathways is an important step to accelerate the development of biofortified cultivars. In a first-of-its-kind experiment, leaf and root samples of a pearl millet inbred ICMB 1505 were exposed to combinations of Fe and Zn stress conditions using the hydroponics method, and a whole-genome transcriptome assay was carried out to characterize the differentially expressed genes (DEGs) and pathways. A total of 37,093 DEGs under different combinations of stress conditions were identified, of which, 7,023 and 9,996 DEGs were reported in the leaf and root stress treatments, respectively. Among the 10,194 unique DEGs, 8,605 were annotated to cellular, biological, and molecular functions and 458 DEGs were assigned to 39 pathways. The results revealed the expression of major genes related to the mugineic acid pathway, phytohormones, chlorophyll biosynthesis, photosynthesis, and carbohydrate metabolism during Fe and Zn stress. The cross-talks between the Fe and Zn provided information on their dual and opposite regulation of key uptake and transporter genes under Fe and Zn deficiency. SNP haplotypes in rice, maize, sorghum, and foxtail millet as well as in Arabidopsis using pearl millet Fe and Zn responsive genes could be used for designing the markers in staple crops. Our results will assist in developing Fe and Zn-efficient pearl millet varieties in biofortification breeding programs and precision delivery mechanisms to ameliorate malnutrition in South Asia and Sub-Saharan Africa.
Collapse
|
7
|
Singhal T, Tara Satyavathi C, Singh SP, Mallik M, Anuradha N, Sankar SM, Bharadwaj C, Singh N. Achieving nutritional security in India through iron and zinc biofortification in pearl millet ( Pennisetum glaucum (L.) R. Br.). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:849-869. [PMID: 35592488 PMCID: PMC9110608 DOI: 10.1007/s12298-022-01144-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 05/09/2023]
Abstract
The health problems caused by iron (Fe) and zinc (Zn) deficiency plague developing and underdeveloped countries. A vegetarian person mainly depends on cereal based diet with low quantity of Fe and Zn. Biofortification is an economical and sustainable approach to challenge the micronutrient malnutrition problem globally. Pearl millet (Pennisetum glaucum (L.) R. Br.) is one of the nutri-cereals and mostly grown under hot, dry conditions on infertile soils of low water-holding capacity, where other crops generally fail. It contains anti-nutrient compounds like phytic acid and polyphenols which reduce the mineral bioavailability because of their chelating properties. Biofortification of pearl millet is like a double-edged sword which cuts down the economic burden and simultaneously supplies required nutrition to the poor, offering a great scope for food security as well as nutritional security. With this background, this review focus on biofortification of grain Fe and Zn content in pearl millet. Genetic research on Fe and Zn uptake and accumulation in pearl millet grain is crucial in identifying the 'bottlenecks' in biofortification. The review also reveals the need and strategies for increasing bioavailability of Fe and Zn in humans by increasing promoters and decreasing anti-nutritional factors in pearl millet.
Collapse
Affiliation(s)
- Tripti Singhal
- ICAR-Indian Agricultural Research Institute, New Delhi, India
- Amity Institute of Biotechnology, Amity University Campus, Sector-125, Noida, India
| | - C. Tara Satyavathi
- ICAR-All India Coordinated Research Project on Pearl Millet, Jodhpur, India
- All India Coordinated Research Project on Pearl Millet, A.R.S., Mandor, Jodhpur, 342304 India
| | - S. P. Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, India
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - M. Mallik
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - N. Anuradha
- Acharya NG. Ranga Agricultural University, Vizianagaram, Andhra Pradesh India
| | | | - C. Bharadwaj
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Nirupma Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| |
Collapse
|
8
|
Govindaraj M, Kanatti A, Rai KN, Pfeiffer WH, Shivade H. Association of Grain Iron and Zinc Content With Other Nutrients in Pearl Millet Germplasm, Breeding Lines, and Hybrids. Front Nutr 2022; 8:746625. [PMID: 35187017 PMCID: PMC8847779 DOI: 10.3389/fnut.2021.746625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 12/31/2021] [Indexed: 12/02/2022] Open
Abstract
Micronutrient deficiency is most prevalent in developing regions of the world, including Africa and Southeast Asia where pearl millet (Pennisetum glaucum L.) is a major crop. Increasing essential minerals in pearl millet through biofortification could reduce malnutrition caused by deficiency. This study evaluated the extent of variability of micronutrients (Fe, Zn, Mn, and Na) and macronutrients (P, K, Ca, and Mg) and their relationship with Fe and Zn content in 14 trials involving pearl millet hybrids, inbreds, and germplasm. Significant genetic variability of macronutrients and micronutrients was found within and across the trials (Ca: 4.2–40.0 mg 100 g−1, Fe: 24–145 mg kg−1, Zn: 22–96 mg kg−1, and Na: 3.0–63 mg kg−1). Parental lines showed significantly larger variation for nutrients than hybrids, indicating their potential for use in hybrid parent improvement through recurrent selection. Fe and Zn contents were positively correlated and highly significant (r = 0.58–0.81; p < 0.01). Fe and Zn were positively and significantly correlated with Ca (r = 0.26–0.61; p < 0.05) and Mn (r = 0.24–0.50; p < 0.05). The findings indicate that joint selection for Fe, Zn, and Ca will be effective. Substantial genetic variation and high heritability (>0.60) for multiple grain minerals provide good selection accuracy prospects for genetic enhancement. A highly positive significant correlation between Fe and Zn and the nonsignificant correlation of grain macronutrients and micronutrients with Fe and Zn suggest that there is scope to achieve higher levels of Fe/Zn simultaneously in current pearl millet biofortification efforts without affecting other grain nutrients. Results suggest major prospects for improving multiple nutrients in pearl millet.
Collapse
Affiliation(s)
- Mahalingam Govindaraj
- International Crops Research Institute for the Semi-arid Tropics (ICRISAT), Patancheru, India
- Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali, Colombia
- *Correspondence: Mahalingam Govindaraj
| | - Anand Kanatti
- International Crops Research Institute for the Semi-arid Tropics (ICRISAT), Patancheru, India
| | - Kedar Nath Rai
- International Crops Research Institute for the Semi-arid Tropics (ICRISAT), Patancheru, India
| | - Wolfgang H. Pfeiffer
- HarvestPlus Program, International Food Policy Research Institute (IFPRI), Washington, DC, United States
| | - Harshad Shivade
- International Crops Research Institute for the Semi-arid Tropics (ICRISAT), Patancheru, India
| |
Collapse
|
9
|
Pujar M, Govindaraj M, Gangaprasad S, Kanatti A, Gowda TH, Dushyantha Kumar BM, Satish KM. Generation Mean Analysis Reveals the Predominant Gene Effects for Grain Iron and Zinc Contents in Pearl Millet. FRONTIERS IN PLANT SCIENCE 2022; 12:693680. [PMID: 35154168 PMCID: PMC8831551 DOI: 10.3389/fpls.2021.693680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Pearl millet [Pennisetum glaucum (L.) R. Br.] is a climate-resilient dryland cereal that has been identified as a potential staple food crop that can contribute to alleviating micronutrient malnutrition, particularly with respect to grain iron (Fe) and zinc (Zn) contents, in Sub-Saharan Africa and India. In this regard, an understanding of the inheritance pattern of genes involved in Fe and Zn contents is vital for devising appropriate breeding methods to genetically enhance their levels in grains. In this study, we aimed to determine the genetic effects underlying such inheritance and their interactions based on the generation mean analyses. Four experimental crosses and their six generations (P1, P2, F1, BCP1, BCP2, and F2) were independently evaluated in a compact family block design in 2017 rainy and 2018 summer seasons. ANOVA revealed highly significant mean squares (p < 0.01) among different generations for grain Fe and Zn contents. Six-parameter generation mean analyses revealed a predominance of additive genetic effect and a significant (p < 0.05) additive × dominant interaction for the grain Fe content. The additive genetic effect for the grain Zn content was also highly significant (p < 0.01). However, interaction effects contributed minimally with respect to most of the crosses for the grain Zn content and hence we assume that a simple digenic inheritance pattern holds true for it. Furthermore, we established that narrow-sense heritability was high for the grain Fe content (>61.78%), whereas it was low to moderate for the grain Zn content (30.60-59.04%). The lack of superior parent heterosis coupled with non-significant inbreeding depression for Fe and Zn contents in grains further confirmed the predominance of an additive genetic effect. These findings will contribute to strategizing a comprehensive breeding method to exploit the available variability of grain Fe and Zn contents for the development of biofortified hybrids of pearl millet.
Collapse
Affiliation(s)
- Mahesh Pujar
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, India
- Department of Genetics and Plant Breeding, University of Agricultural and Horticultural Sciences, Shimoga, Shivamogga, India
| | - Mahalingam Govindaraj
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, India
- Alliance of Bioversity International, International Center for Tropical Agriculture (CIAT), Cali, Colombia
| | - S. Gangaprasad
- Department of Genetics and Plant Breeding, University of Agricultural and Horticultural Sciences, Shimoga, Shivamogga, India
| | - Anand Kanatti
- International Crops Research Institute for the Semi-Arid Tropics, Patancheru, India
| | - T. H. Gowda
- Department of Genetics and Plant Breeding, University of Agricultural and Horticultural Sciences, Shimoga, Shivamogga, India
| | - B. M. Dushyantha Kumar
- Department of Genetics and Plant Breeding, University of Agricultural and Horticultural Sciences, Shimoga, Shivamogga, India
| | - K. M. Satish
- Department of Biotechnology, University of Agricultural and Horticulatural Sciences, Shimoga, Shivamogga, India
| |
Collapse
|
10
|
Gangashetty PI, Riyazaddin M, Sanogo MD, Inousa D, Issoufou KA, Asungre PA, Sy O, Govindaraj M, Ignatius AI. Identification of High-Yielding Iron-Biofortified Open-Pollinated Varieties of Pearl Millet in West Africa. FRONTIERS IN PLANT SCIENCE 2021; 12:688937. [PMID: 34630450 PMCID: PMC8492886 DOI: 10.3389/fpls.2021.688937] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Pearl millet is a predominant food and fodder crop in West Africa. This study was carried out to test the newly developed open-pollinated varieties (OPVs) for field performance and stability for grain yield, grain iron (Fe), and grain zinc (Zn) contents across 10 locations in West Africa (i.e., Niger, Nigeria, Mali, Burkina Faso, Senegal, and Ghana). The test material consisted of 30 OPVs, of which 8 are Fe/Zn biofortified. The experiment was conducted in a randomized complete block design in three replications. ANOVA revealed highly significant variability for grain yield and micronutrient traits. The presence of genotype × environment (G × E) indicated that the expressions of traits are significantly influenced by both genetic and G × E factors, for grain Fe and Zn contents. Days to 50% flowering and plant height showed less G × E, suggesting these traits are largely under genetic control. The genotypes CHAKTI (46 days), ICTP 8203 (46 days), ICMV 177002 (50 days), ICMV 177003 (48 days), and Moro (53 days) had exhibited early flowering across locations leading to early physiological maturity. CHAKTI (1.42 t/ha yield; 62.24 mg/kg of grain Fe, 47.29 mg/kg of grain Zn) and ICMP 177002 (1.19 t/ha yield, 62.62 mg/kg of grain Fe, 46.62 mg/kg of grain Zn) have performed well for grain yield and also for micronutrients, across locations, compared with the check. Additive Main Effect and Multiplicative Interaction (AMMI) ANOVA revealed the highly significant genotypic differences, the mean sum of squares of environment, and its interaction with the genotypes. Based on the AMMI stability value (ASV), the most stable genotype is SOSAT-C88 (ASV = 0.04) for grain yield and resistance to downy mildew; mean grain yield and stability rankings (YSI) revealed that the genotypes CHAKTI, SOSAT-C88, and ICMV IS 99001 were high yielding and expressed stability across regions. The strong correlation (r = 0.98∗∗) of grain Fe and Zn contents that merits Fe-based selection is highly rewarding. CHAKTI outperformed over other genotypes for grain yield (71% higher), especially with early maturing varieties in West Africa, such as GB 8735, LCIC 9702, and Jirani, and for grain Fe (16.11% higher) and Zn (7% higher) contents across locations, and made a candidate of high-iron variety to be promoted for combating the micronutrient malnutrition in West and Central Africa (WCA).
Collapse
Affiliation(s)
- Prakash I. Gangashetty
- International Crops Research Institute for the Semi-Arid Tropics, (ICRISAT), Patancheru, India
- International Crops Research Institute for the Semi-Arid Tropics, (ICRISAT), Niamey, Niger
| | - Mohammed Riyazaddin
- International Crops Research Institute for the Semi-Arid Tropics, (ICRISAT), Niamey, Niger
| | | | - Drabo Inousa
- Institut de l’Environnement et du Recherches Agricoles de Burkina Faso (INERA), Ouagadougou, Burkina Faso
| | | | | | - Ousmane Sy
- Senegalese Institute of Agricultural Research (ISRA), Bambey, Senegal
| | - Mahalingam Govindaraj
- International Crops Research Institute for the Semi-Arid Tropics, (ICRISAT), Patancheru, India
| | | |
Collapse
|
11
|
Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice. Sci Rep 2021; 11:10579. [PMID: 34011978 PMCID: PMC8134482 DOI: 10.1038/s41598-021-90038-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/04/2021] [Indexed: 11/24/2022] Open
Abstract
Genetic improvement of rice for grain micronutrients, viz., iron (Fe) and zinc (Zn) content is one of the important breeding objectives, in addition to yield improvement under the irrigated and aerobic ecosystems. In view of developing genetic resources for aerobic conditions, line (L) × tester (T) analysis was conducted with four restorers, four CMS lines and 16 hybrids. Both hybrids and parental lines were evaluated in irrigated and aerobic field conditions for grain yield, grain Fe and Zn content. General Combining Ability (GCA) effects of parents and Specific Combining Ability (SCA) effects of hybrids were observed to be contrasting for the micronutrient content in both the growing environments. The grain Fe and Zn content for parental lines were negatively correlated with grain yield in both the contrasting growing conditions. However, hybrids exhibited positive correlation for grain Fe and Zn with grain yield under limited water conditions. The magnitude of SCA mean squares was much higher than GCA mean squares implying preponderance of dominance gene action and also role of complementary non-allelic gene(s) interaction of parents and suitability of hybrids to the aerobic system. The testers HHZ12-SAL8-Y1-SAL1 (T1) and HHZ17-Y16-Y3-Y2 (T2) were identified as good combiners for grain Zn content under irrigated and aerobic conditions respectively.
Collapse
|
12
|
Singhal T, Satyavathi CT, Singh SP, Kumar A, Sankar SM, Bhardwaj C, Mallik M, Bhat J, Anuradha N, Singh N. Multi-Environment Quantitative Trait Loci Mapping for Grain Iron and Zinc Content Using Bi-parental Recombinant Inbred Line Mapping Population in Pearl Millet. FRONTIERS IN PLANT SCIENCE 2021; 12:659789. [PMID: 34093617 PMCID: PMC8169987 DOI: 10.3389/fpls.2021.659789] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/06/2021] [Indexed: 05/24/2023]
Abstract
Pearl millet is a climate-resilient, nutritious crop with low input requirements that could provide economic returns in marginal agro-ecologies. In this study, we report quantitative trait loci (QTLs) for iron (Fe) and zinc (Zn) content from three distinct production environments. We generated a genetic linkage map using 210 F6 recombinant inbred line (RIL) population derived from the (PPMI 683 × PPMI 627) cross using genome-wide simple sequence repeats (SSRs). The molecular linkage map (seven linkage groups) of 151 loci was 3,273.1 cM length (Kosambi). The content of grain Fe in the RIL population ranged between 36 and 114 mg/Kg, and that of Zn from 20 to 106 mg/Kg across the 3 years (2014-2016) at over the three locations (Delhi, Dharwad, and Jodhpur). QTL analysis revealed a total of 22 QTLs for grain Fe and Zn, of which 14 were for Fe and eight were for Zn on three consecutive years at all locations. The observed phenotypic variance (R 2) explained by different QTLs for grain Fe and Zn content ranged from 2.85 (QGFe.E3.2014-2016_Q3) to 19.66% (QGFe.E1.2014-2016_Q3) and from 2.93 (QGZn.E3.2014-2016_Q3) to 25. 95% (QGZn.E1.2014-2016_Q1), respectively. Two constitutive expressing QTLs for both Fe and Zn co-mapped in this population, one on LG 2 and second one on LG 3. Inside the QTLs candidate genes such as Ferritin gene, Al3+ Transporter, K+ Transporters, Zn2+ transporters and Mg2+ transporters were identified using bioinformatics approaches. The identified QTLs and candidate genes could be useful in pearl millet population improvement programs, seed, restorer parents, and marker-assisted selection programs.
Collapse
Affiliation(s)
- Tripti Singhal
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - C. Tara Satyavathi
- ICAR-All India Coordinated Research Project on Pearl Millet, Jodhpur, India
| | - S. P. Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Aruna Kumar
- Amity Institute of Biotechnology, Amity University, Noida, India
| | | | - C. Bhardwaj
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - M. Mallik
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Jayant Bhat
- Regional Research Centre, ICAR-Indian Agricultural Research Institute, Dharwad, India
| | - N. Anuradha
- Acharya N. G. Ranga Agricultural University, Vizianagaram, India
| | - Nirupma Singh
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| |
Collapse
|
13
|
Yadav OP, Gupta SK, Govindaraj M, Sharma R, Varshney RK, Srivastava RK, Rathore A, Mahala RS. Genetic Gains in Pearl Millet in India: Insights Into Historic Breeding Strategies and Future Perspective. FRONTIERS IN PLANT SCIENCE 2021; 12:645038. [PMID: 33859663 DOI: 10.3389/fpls.2021.64503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/19/2021] [Indexed: 05/27/2023]
Abstract
Pearl millet (Pennisetum glaucum R. Br.) is an important staple and nutritious food crop in the semiarid and arid ecologies of South Asia (SA) and Sub-Saharan Africa (SSA). In view of climate change, depleting water resources, and widespread malnutrition, there is a need to accelerate the rate of genetic gains in pearl millet productivity. This review discusses past strategies and future approaches to accelerate genetic gains to meet future demand. Pearl millet breeding in India has historically evolved very comprehensively from open-pollinated varieties development to hybrid breeding. Availability of stable cytoplasmic male sterility system with adequate restorers and strategic use of genetic resources from India and SSA laid the strong foundation of hybrid breeding. Genetic and cytoplasmic diversification of hybrid parental lines, periodic replacement of hybrids, and breeding disease-resistant and stress-tolerant cultivars have been areas of very high priority. As a result, an annual yield increase of 4% has been realized in the last three decades. There is considerable scope to further accelerate the efforts on hybrid breeding for drought-prone areas in SA and SSA. Heterotic grouping of hybrid parental lines is essential to sustain long-term genetic gains. Time is now ripe for mainstreaming of the nutritional traits improvement in pearl millet breeding programs. New opportunities are emerging to improve the efficiency and precision of breeding. Development and application of high-throughput genomic tools, speed breeding, and precision phenotyping protocols need to be intensified to exploit a huge wealth of native genetic variation available in pearl millet to accelerate the genetic gains.
Collapse
Affiliation(s)
| | - S K Gupta
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Mahalingam Govindaraj
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Rajan Sharma
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Rajeev K Varshney
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
- State Agricultural Biotechnology Centre, Centre for Crop and Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia
| | - Rakesh K Srivastava
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - A Rathore
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | | |
Collapse
|
14
|
Yadav OP, Gupta SK, Govindaraj M, Sharma R, Varshney RK, Srivastava RK, Rathore A, Mahala RS. Genetic Gains in Pearl Millet in India: Insights Into Historic Breeding Strategies and Future Perspective. FRONTIERS IN PLANT SCIENCE 2021; 12:645038. [PMID: 33859663 PMCID: PMC8042313 DOI: 10.3389/fpls.2021.645038] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/19/2021] [Indexed: 05/09/2023]
Abstract
Pearl millet (Pennisetum glaucum R. Br.) is an important staple and nutritious food crop in the semiarid and arid ecologies of South Asia (SA) and Sub-Saharan Africa (SSA). In view of climate change, depleting water resources, and widespread malnutrition, there is a need to accelerate the rate of genetic gains in pearl millet productivity. This review discusses past strategies and future approaches to accelerate genetic gains to meet future demand. Pearl millet breeding in India has historically evolved very comprehensively from open-pollinated varieties development to hybrid breeding. Availability of stable cytoplasmic male sterility system with adequate restorers and strategic use of genetic resources from India and SSA laid the strong foundation of hybrid breeding. Genetic and cytoplasmic diversification of hybrid parental lines, periodic replacement of hybrids, and breeding disease-resistant and stress-tolerant cultivars have been areas of very high priority. As a result, an annual yield increase of 4% has been realized in the last three decades. There is considerable scope to further accelerate the efforts on hybrid breeding for drought-prone areas in SA and SSA. Heterotic grouping of hybrid parental lines is essential to sustain long-term genetic gains. Time is now ripe for mainstreaming of the nutritional traits improvement in pearl millet breeding programs. New opportunities are emerging to improve the efficiency and precision of breeding. Development and application of high-throughput genomic tools, speed breeding, and precision phenotyping protocols need to be intensified to exploit a huge wealth of native genetic variation available in pearl millet to accelerate the genetic gains.
Collapse
Affiliation(s)
- Om Parkash Yadav
- ICAR-Central Arid Zone Research Institute, Jodhpur, India
- *Correspondence: Om Parkash Yadav
| | - S. K. Gupta
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Mahalingam Govindaraj
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Rajan Sharma
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Rajeev K. Varshney
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
- State Agricultural Biotechnology Centre, Centre for Crop and Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia
| | - Rakesh K. Srivastava
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - A. Rathore
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | | |
Collapse
|
15
|
Exploring the genetic variability and diversity of pearl millet core collection germplasm for grain nutritional traits improvement. Sci Rep 2020; 10:21177. [PMID: 33273504 PMCID: PMC7713302 DOI: 10.1038/s41598-020-77818-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/18/2020] [Indexed: 11/08/2022] Open
Abstract
Improving essential nutrient content in staple food crops through biofortification breeding can overcome the micronutrient malnutrition problem. Genetic improvement depends on the availability of genetic variability in the primary gene pool. This study was aimed to ascertain the magnitude of variability in a core germplasm collection of diverse origin and predict pearl millet biofortification prospects for essential micronutrients. Germplasm accessions were evaluated in field trials at ICRISAT, India. The accessions differed significantly for all micronutrients with over two-fold variation for Fe (34-90 mg kg-1), Zn (30-74 mg kg-1), and Ca (85-249 mg kg-1). High estimates of heritability (> 0.81) were observed for Fe, Zn, Ca, P, Mo, and Mg. The lower magnitude of genotype (G) × environment (E) interaction observed for most of the traits implies strong genetic control for grain nutrients. The top-10 accessions for each nutrient and 15 accessions, from five countries for multiple nutrients were identified. For Fe and Zn, 39 accessions, including 15 with multiple nutrients, exceeded the Indian cultivars and 17 of them exceeded the biofortification breeding target for Fe (72 mg kg-1). These 39 accessions were grouped into 5 clusters. Most of these nutrients were positively and significantly associated among themselves and with days to 50% flowering and 1000-grain weight (TGW) indicating the possibility of their simultaneous improvement in superior agronomic background. The identified core collection accessions rich in specific and multiple-nutrients would be useful as the key genetic resources for developing biofortified and agronomically superior cultivars.
Collapse
|
16
|
Younas A, Sadaqat HA, Kashif M, Ahmed N, Farooq M. Combining ability and heterosis for grain iron biofortification in bread wheat. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:1570-1576. [PMID: 31769035 DOI: 10.1002/jsfa.10165] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/21/2019] [Accepted: 11/21/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Iron is one of the nutrients that is essential for the human body. Despite the abundance of iron on earth, about two billion people worldwide are affected by iron deficiency. Iron biofortification of wheat, instead of supplementation and food fortification, provides a pragmatic approach to solve the problem of iron deficiency. In this study, 144 diverse wheat genotypes were evaluated for grain iron and yield potential, to estimate the potential for the iron biofortification of high-yielding wheat varieties. RESULTS Genotypes did not differ significantly across the species, but within species the differences were significant for grain iron content and the phytate:iron molar ratio. Triticum aestivum (bread wheat) had the highest yield potential with more diversity than other Triticum species. Genotypes with high iron contents were crossed with high-yielding genotypes in line × tester fashion to check the gene action controlling these traits. The combining ability analysis showed non-additive gene action controlling grain iron, grain phytate, and grain yield. Heterosis manifestation also indicated some transgressive segregates with high specific combining ability effects. CONCLUSION There was considerable genetic potential for improving the grain iron content in the germplasm to provide an economical and long-lasting solution to benefit an iron-deficient population. Triticum aestivum had the highest variation and potential for iron biofortification. This study indicated the possibility of simultaneous improvement in grain iron and grain yield by producing a new variety through continuous selective breeding. © 2019 Society of Chemical Industry.
Collapse
Affiliation(s)
- Abia Younas
- Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Hafeez Ahmad Sadaqat
- Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Kashif
- Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Nisar Ahmed
- Center of Agricultural Biochemistry and Biotechnology, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Farooq
- Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud, Oman
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| |
Collapse
|
17
|
Govindaraj M, Rai KN, Kanatti A, Rao AS, Shivade H. Nutritional Security in Drylands: Fast-Track Intra-Population Genetic Improvement for Grain Iron and Zinc Densities in Pearl Millet. Front Nutr 2019; 6:74. [PMID: 31179283 PMCID: PMC6543707 DOI: 10.3389/fnut.2019.00074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 05/01/2019] [Indexed: 11/13/2022] Open
Abstract
Considering the pervasive malnutrition caused by micronutrients, particularly those arising from the deficiencies of iron (Fe) and zinc (Zn), the primary focus of research in pearl millet is on biofortifying the crop with these two minerals. Pearl millet is a highly cross-pollinated crop where open-pollinated varieties (OPVs) and hybrids are the two distinct cultivar types. In view of the severe deficiency of Fe and Zn in Asia and Africa where this crop is widely consumed, crop biofortification holds a key role in attenuating this crisis. The present study included three OPVs previously identified for high-Fe and Zn density to assess the magnitude of variability and test the effectiveness of intra-population improvement as a fast-track selection approach. Large variability among the S1 progenies was observed in all three OPVs, with the Fe varying from 31 to 143 mg kg-1 and Zn varying from 35 to 82 mg kg-1. Progeny selection was effective for Fe density in all three OPVs, with up to 21% selection response for Fe density, and up to 10% selection response in two OPVs for Zn density, for which selection was made as an associated trait. Selection for Fe density had no adverse effect on grain yield and other agronomic traits. These results suggest that effective selection for Fe density in OPVs and composites can be made for these micronutrients and selection for Fe density is highly associated with the improvement of Zn density as well. These genetic changes can be achieved without compromising on grain yield and agronomic traits. Such improved versions could serve as essentially-derived varieties for immediate cultivation and also serve as potential sources for the development of parental lines of hybrids with elevated levels of Fe and Zn density. Therefore, fast-track breeding is essential to produce biofortified breeding pipelines to address food-cum-nutritional security.
Collapse
Affiliation(s)
- Mahalingam Govindaraj
- Crop Improvement, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Kedar Nath Rai
- Crop Improvement, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Anand Kanatti
- Crop Improvement, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Aluri Sambasiva Rao
- Crop Improvement, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| | - Harshad Shivade
- Crop Improvement, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, India
| |
Collapse
|
18
|
Inheritance studies on grain iron and zinc concentration and agronomic traits in sorghum [Sorghum bicolor (L.) Moench]. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
19
|
Boncompagni E, Orozco-Arroyo G, Cominelli E, Gangashetty PI, Grando S, Kwaku Zu TT, Daminati MG, Nielsen E, Sparvoli F. Antinutritional factors in pearl millet grains: Phytate and goitrogens content variability and molecular characterization of genes involved in their pathways. PLoS One 2018; 13:e0198394. [PMID: 29856884 PMCID: PMC5983567 DOI: 10.1371/journal.pone.0198394] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/22/2018] [Indexed: 02/02/2023] Open
Abstract
Pearl millet [Pennisetum glaucum (L.) R. Br.] is an important "orphan" cereal and the most widely grown of all the millet species worldwide. It is also the sixth most important cereal in the world after wheat, rice, maize, barley, and sorghum, being largely grown and used in West Africa as well as in India and Pakistan. The present study was carried out in the frame of a program designed to increase benefits and reduce potential health problems deriving from the consumption of pearl millet. The specific goal was to provide a database of information on the variability existing in pearl millet germplasm as to the amounts of phytate, the most relevant antinutrient compound, and the goitrogenic compounds C-glycosylflavones (C-GFs) accumulated in the grain.Results we obtained clearly show that, as indicated by the range in values, a substantial variability subsists across the investigated pearl millet inbred lines as regards the grain level of phytic acid phosphate, while the amount of C-GFs shows a very high variation. Suitable potential parents to be used in breeding programs can be therefore chosen from the surveyed material in order to create new germplasm with increased nutritional quality and food safety. Moreover, we report novel molecular data showing which genes are more relevant for phytic acid biosynthesis in the seeds as well as a preliminary analysis of a pearl millet orthologous gene for C-GFs biosynthesis. These results open the way to dissect the genetic determinants controlling key seed nutritional phenotypes and to the characterization of their impact on grain nutritional value in pearl millet.
Collapse
Affiliation(s)
| | | | | | - Prakash Irappa Gangashetty
- ICRISAT Sahelian Center, International Crops Research Institute for the Semi-Arid Tropics, Niamey, Niger
| | - Stefania Grando
- ICRISAT Patancheru, International Crops Research Institute for the Semi-Arid Tropics, Andhra Pradesh, India
| | | | | | - Erik Nielsen
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | | |
Collapse
|
20
|
MEDICI LEONARDOO, GONÇALVES FABÍOLAV, FONSECA MARCOSPAULOSDA, GAZIOLA SALETEA, SCHMIDT DAIANA, AZEVEDO RICARDOA, PIMENTEL CARLOS. Growth, Yield and Grain Nutritional Quality in Three Brazilian Pearl Millets (Pennisetum americanum L.) with African or Indian origins. AN ACAD BRAS CIENC 2018; 90:1749-1758. [DOI: 10.1590/0001-3765201820170488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 12/01/2017] [Indexed: 11/22/2022] Open
|
21
|
Govindaraj M, Rai KN, Kanatti A, Shivade H. Terminal drought and a d dwarfing gene affecting grain iron and zinc density in pearl millet. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2017.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
22
|
Phuke RM, Anuradha K, Radhika K, Jabeen F, Anuradha G, Ramesh T, Hariprasanna K, Mehtre SP, Deshpande SP, Anil G, Das RR, Rathore A, Hash T, Reddy BVS, Kumar AA. Genetic Variability, Genotype × Environment Interaction, Correlation, and GGE Biplot Analysis for Grain Iron and Zinc Concentration and Other Agronomic Traits in RIL Population of Sorghum ( Sorghum bicolor L. Moench). FRONTIERS IN PLANT SCIENCE 2017; 8:712. [PMID: 28529518 PMCID: PMC5418227 DOI: 10.3389/fpls.2017.00712] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 04/18/2017] [Indexed: 05/24/2023]
Abstract
The low grain iron and zinc densities are well documented problems in food crops, affecting crop nutritional quality especially in cereals. Sorghum is a major source of energy and micronutrients for majority of population in Africa and central India. Understanding genetic variation, genotype × environment interaction and association between these traits is critical for development of improved cultivars with high iron and zinc. A total of 336 sorghum RILs (Recombinant Inbred Lines) were evaluated for grain iron and zinc concentration along with other agronomic traits for 2 years at three locations. The results showed that large variability exists in RIL population for both micronutrients (Iron = 10.8 to 76.4 mg kg-1 and Zinc = 10.2 to 58.7 mg kg-1, across environments) and agronomic traits. Genotype × environment interaction for both micronutrients (iron and zinc) was highly significant. GGE biplots comparison for grain iron and zinc showed greater variation across environments. The results also showed that G × E was substantial for grain iron and zinc, hence wider testing needed for taking care of G × E interaction to breed micronutrient rich sorghum lines. Iron and zinc concentration showed high significant positive correlation (across environment = 0.79; p < 0.01) indicating possibility of simultaneous effective selection for both the traits. The RIL population showed good variability and high heritabilities (>0.60, in individual environments) for Fe and Zn and other traits studied indicating its suitability to map QTL for iron and zinc.
Collapse
Affiliation(s)
- Rahul M. Phuke
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
- Professor Jayashankar Telangana State Agricultural UniversityHyderbad, India
| | - Kotla Anuradha
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Kommineni Radhika
- Professor Jayashankar Telangana State Agricultural UniversityHyderbad, India
| | - Farzana Jabeen
- Professor Jayashankar Telangana State Agricultural UniversityHyderbad, India
| | - Ghanta Anuradha
- Professor Jayashankar Telangana State Agricultural UniversityHyderbad, India
| | - Thatikunta Ramesh
- Professor Jayashankar Telangana State Agricultural UniversityHyderbad, India
| | | | | | - Santosh P. Deshpande
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Gaddameedi Anil
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Roma R. Das
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Abhishek Rathore
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Tom Hash
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Belum V. S. Reddy
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| | - Are Ashok Kumar
- International Crops Research Institute for the Semi-Arid TropicsHyderabad, India
| |
Collapse
|
23
|
Intra-population genetic variance for grain iron and zinc contents and agronomic traits in pearl millet. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.cj.2015.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
24
|
Sehgal D, Skot L, Singh R, Srivastava RK, Das SP, Taunk J, Sharma PC, Pal R, Raj B, Hash CT, Yadav RS. Exploring potential of pearl millet germplasm association panel for association mapping of drought tolerance traits. PLoS One 2015; 10:e0122165. [PMID: 25970600 PMCID: PMC4430295 DOI: 10.1371/journal.pone.0122165] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 02/07/2015] [Indexed: 11/19/2022] Open
Abstract
A pearl millet inbred germplasm association panel (PMiGAP) comprising 250 inbred lines, representative of cultivated germplasm from Africa and Asia, elite improved open-pollinated cultivars, hybrid parental inbreds and inbred mapping population parents, was recently established. This study presents the first report of genetic diversity in PMiGAP and its exploitation for association mapping of drought tolerance traits. For diversity and genetic structure analysis, PMiGAP was genotyped with 37 SSR and CISP markers representing all seven linkage groups. For association analysis, it was phenotyped for yield and yield components and morpho-physiological traits under both well-watered and drought conditions, and genotyped with SNPs and InDels from seventeen genes underlying a major validated drought tolerance (DT) QTL. The average gene diversity in PMiGAP was 0.54. The STRUCTURE analysis revealed six subpopulations within PMiGAP. Significant associations were obtained for 22 SNPs and 3 InDels from 13 genes under different treatments. Seven SNPs associations from 5 genes were common under irrigated and one of the drought stress treatments. Most significantly, an important SNP in putative acetyl CoA carboxylase gene showed constitutive association with grain yield, grain harvest index and panicle yield under all treatments. An InDel in putative chlorophyll a/b binding protein gene was significantly associated with both stay-green and grain yield traits under drought stress. This can be used as a functional marker for selecting high yielding genotypes with 'stay green' phenotype under drought stress. The present study identified useful marker-trait associations of important agronomics traits under irrigated and drought stress conditions with genes underlying a major validated DT-QTL in pearl millet. Results suggest that PMiGAP is a useful panel for association mapping. Expression patterns of genes also shed light on some physiological mechanisms underlying pearl millet drought tolerance.
Collapse
Affiliation(s)
- Deepmala Sehgal
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
| | - Leif Skot
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
| | - Richa Singh
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
- Chaudhary Charan Singh Haryana Agricultural University (CCSHAU), Department of Molecular Biology and Biotechnology, Hisar, Haryana, India
| | - Rakesh Kumar Srivastava
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Andhra Pradesh, India
| | - Sankar Prasad Das
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
- ICAR Research Complex for NEH Region, Tripura Centre, Lembucherra, India
| | - Jyoti Taunk
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
- Chaudhary Charan Singh Haryana Agricultural University (CCSHAU), Department of Molecular Biology and Biotechnology, Hisar, Haryana, India
| | - Parbodh C. Sharma
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
- Central Soil Salinity Research Institute (CSSRI), Karnal, India
| | - Ram Pal
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
- National Research Centre for Orchids, Darjeeling Campus, Darjeeling, India
| | - Bhasker Raj
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Andhra Pradesh, India
| | | | - Rattan S. Yadav
- Institute of Biological, Environmental and Biological Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, Ceredigion, United Kingdom
| |
Collapse
|
25
|
Tako E, Reed SM, Budiman J, Hart JJ, Glahn RP. Higher iron pearl millet (Pennisetum glaucum L.) provides more absorbable iron that is limited by increased polyphenolic content. Nutr J 2015; 14:11. [PMID: 25614193 PMCID: PMC4325945 DOI: 10.1186/1475-2891-14-11] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 12/17/2014] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Our objective was to compare the capacity of iron (Fe) biofortified and standard pearl millet (Pennisetum glaucum L.) to deliver Fe for hemoglobin (Hb)-synthesis. Pearl millet (PM) is common in West-Africa and India, and is well adapted to growing areas characterized by drought, low-soil fertility, and high-temperature. Because of its tolerance to difficult growing conditions, it can be grown in areas where other cereal crops, such as maize, would not survive. It accounts for approximately 50% of the total world-production of millet. Given the widespread use of PM in areas of the world affected by Fe-deficiency, it is important to establish whether biofortified-PM can improve Fe-nutriture. METHODS Two isolines of PM, a low-Fe-control ("DG-9444", Low-Fe) and biofortified ("ICTP-8203 Fe",High-Fe) in Fe (26 μg and 85 μg-Fe/g, respectively) were used. PM-based diets were formulated to meet the nutrient requirements for the broiler (Gallus-gallus) except for Fe (Fe concentrations were 22.1±0.52 and 78.6±0.51 μg-Fe/g for the Low-Fe and High-Fe diets, respectively). For 6-weeks, Hb, feed-consumption and body-weight were measured (n = 12). RESULTS Improved Fe-status was observed in the High-Fe group, as suggested by total-Hb-Fe values (15.5±0.8 and 26.7±1.4 mg, Low-Fe and High-Fe respectively, P<0.05). DMT-1, DcytB, and ferroportin mRNA-expression was higher (P<0.05) and liver-ferritin was lower (P>0.05) in the Low-Fe group versus High-Fe group. In-vitro comparisons indicated that the High-Fe PM should provide more absorbable-Fe; however, the cell-ferritin values of the in-vitro bioassay were very low. Such low in-vitro values, and as previously demonstrated, indicate the presence of high-levels of polyphenolic-compounds or/and phytic-acid that inhibit Fe-absorption. LC/MS-analysis yielded 15 unique parent aglycone polyphenolic-compounds elevated in the High-Fe line, corresponding to m/z = 431.09. CONCLUSIONS The High-Fe diet appeared to deliver more absorbable-Fe as evidenced by the increased Hb and Hb-Fe status. Results suggest that some PM varieties with higher Fe contents also contain elevated polyphenolic concentrations, which inhibit Fe-bioavailability. Our observations are important as these polyphenols-compounds represent potential targets which can perhaps be manipulated during the breeding process to yield improved dietary Fe-bioavailability. Therefore, the polyphenolic and phytate profiles of PM must be carefully evaluated in order to further improve the nutritional benefit of this crop.
Collapse
Affiliation(s)
- Elad Tako
- />USDA/ARS, Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, NY 14853 USA
| | - Spenser M Reed
- />USDA/ARS, Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, NY 14853 USA
- />Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853 USA
| | - Jessica Budiman
- />Department of Food Science, Cornell University, Ithaca, NY 14853 USA
| | - Jonathan J Hart
- />USDA/ARS, Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, NY 14853 USA
| | - Raymond P Glahn
- />USDA/ARS, Robert W. Holley Center for Agriculture and Health, Cornell University, Ithaca, NY 14853 USA
| |
Collapse
|
26
|
Kanatti A, Rai KN, Radhika K, Govindaraj M, Sahrawat KL, Rao AS. Grain iron and zinc density in pearl millet: combining ability, heterosis and association with grain yield and grain size. SPRINGERPLUS 2014; 3:763. [PMID: 25674488 PMCID: PMC4320223 DOI: 10.1186/2193-1801-3-763] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 12/10/2014] [Indexed: 12/04/2022]
Abstract
Genetics of micronutrients and their relationships with grain yield and other traits have a direct bearing on devising effective strategies for breeding biofortified crop cultivars. A line × tester study of 196 hybrids and their 28 parental lines of pearl millet (Pennisetum glaucum (L.) R.Br.) showed large genetic variability for Fe and Zn densities with predominantly additive gene action and no better-parent heterosis. Hybrids with high levels of Fe and Zn densities, involved both parental lines having significant positive general combining ability (GCA), and there were highly significant and high positive correlations between performance per se of parental lines and their GCAs. There was highly significant and high positive correlation between the Fe and Zn densities, both for performance per se and GCA. Fe and Zn densities had highly significant and negative, albeit weak, correlations with grain yield and highly significant and moderate positive correlation with grain weight in hybrids. These correlations, however, were non-significant in the parental lines. Thus, to breed hybrids with high Fe and Zn densities would require incorporating these micronutrients in both parental lines. Also, simultaneous selection for Fe and Zn densities based on performance per se would be highly effective in selecting for GCA. Breeding for high Fe and Zn densities with large grain size will be highly effective. However, combining high levels of these micronutrients with high grain yield would require growing larger breeding populations and progenies than breeding for grain yield alone, to make effective selection for desirable recombinants.
Collapse
Affiliation(s)
- Anand Kanatti
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, 502324 Telangana India ; Department of Genetics and Plant Breeding, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, 500 030 Telangana India
| | - Kedar N Rai
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, 502324 Telangana India
| | - Kommineni Radhika
- Department of Genetics and Plant Breeding, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, 500 030 Telangana India
| | - Mahalingam Govindaraj
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, 502324 Telangana India
| | - Kanwar L Sahrawat
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, 502324 Telangana India
| | - Aluri S Rao
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, 502324 Telangana India
| |
Collapse
|