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Péros JP, Launay A, Peyrière A, Berger G, Roux C, Lacombe T, Boursiquot JM. Species relationships within the genus Vitis based on molecular and morphological data. PLoS One 2023; 18:e0283324. [PMID: 37523393 PMCID: PMC10389703 DOI: 10.1371/journal.pone.0283324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/07/2023] [Indexed: 08/02/2023] Open
Abstract
The grape genus Vitis L. includes the domesticated V. vinifera, which is one of the most important fruit crop, and also close relatives recognized as valuable germplasm resources for improving cultivars. To resolve some standing problems in the species relationships within the Vitis genus we analyzed diversity in a set of 90 accessions comprising most of Vitis species and some putative hybrids. We discovered single nucleotide polymorphisms (SNPs) in SANGER sequences of twelve loci and genotyped accessions at a larger number of SNPs using a previously developed SNP array. Our phylogenic analyses consistently identified: three clades in North America, one in East Asia, and one in Europe corresponding to V. vinifera. Using heterozygosity measurement, haplotype reconstruction and chloroplast markers, we identified the hybrids existing within and between clades. The species relationships were better assessed after discarding these hybrids from analyses. We also studied the relationships between phylogeny and morphological traits and found that several traits significantly correlated with the phylogeny. The American clade that includes important species such as V. riparia and V. rupestris showed a major divergence with all other clades based on both DNA polymorphisms and morphological traits.
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Affiliation(s)
- Jean-Pierre Péros
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Amandine Launay
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - André Peyrière
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Gilles Berger
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Catherine Roux
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Thierry Lacombe
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
| | - Jean-Michel Boursiquot
- UMR AGAP Institut, CIRAD, INRAE, Institut Agro, University of Montpellier, Montpellier, France
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2
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Patel S, Harris ZN, Londo JP, Miller A, Fennell A. Genome assembly of the hybrid grapevine Vitis 'Chambourcin'. GigaByte 2023; 2023:gigabyte84. [PMID: 37408731 PMCID: PMC10318349 DOI: 10.46471/gigabyte.84] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023] Open
Abstract
'Chambourcin' is a French-American interspecific hybrid grape grown in the eastern and midwestern United States and used for making wine. Few genomic resources are available for hybrid grapevines like 'Chambourcin'. Here, we assembled the genome of 'Chambourcin' using PacBio HiFi long-read, Bionano optical map, and Illumina short-read sequencing technologies. We generated an assembly for 'Chambourcin' with 26 scaffolds, with an N50 length of 23.3 Mb and an estimated BUSCO completeness of 97.9%. We predicted 33,791 gene models and identified 16,056 common orthologs between 'Chambourcin', V. vinifera 'PN40024' 12X.v2, VCOST.v3, Shine Muscat and V. riparia Gloire. We found 1,606 plant transcription factors from 58 gene families. Finally, we identified 304,571 simple sequence repeats (up to six base pairs long). Our work provides the genome assembly, annotation and the protein and coding sequences of 'Chambourcin'. Our genome assembly is a valuable resource for genome comparisons, functional genomic analyses and genome-assisted breeding research.
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Affiliation(s)
- Sagar Patel
- Saint Louis University, Department of Biology, 3507 Laclede Ave, St. Louis, MO 63103, USA
- Donald Danforth Plant Science Center, 975 North Warson Road, St. Louis, MO 63132, USA
- Eastern Virginia Medical School, School of Health Professions, Norfolk, VA 23501, USA
| | - Zachary N. Harris
- Saint Louis University, Department of Biology, 3507 Laclede Ave, St. Louis, MO 63103, USA
- Donald Danforth Plant Science Center, 975 North Warson Road, St. Louis, MO 63132, USA
| | - Jason P. Londo
- School of Integrative Plant Science, Cornell University, 630 W. North Street, Geneva, NY 14456, USA
| | - Allison Miller
- Saint Louis University, Department of Biology, 3507 Laclede Ave, St. Louis, MO 63103, USA
- Donald Danforth Plant Science Center, 975 North Warson Road, St. Louis, MO 63132, USA
| | - Anne Fennell
- South Dakota State University, Agronomy, Horticulture and Plant Science Department and BioSNTR, Brookings, SD 57006, USA
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Kapazoglou A, Gerakari M, Lazaridi E, Kleftogianni K, Sarri E, Tani E, Bebeli PJ. Crop Wild Relatives: A Valuable Source of Tolerance to Various Abiotic Stresses. Plants (Basel) 2023; 12:plants12020328. [PMID: 36679041 PMCID: PMC9861506 DOI: 10.3390/plants12020328] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 05/27/2023]
Abstract
Global climate change is one of the major constraints limiting plant growth, production, and sustainability worldwide. Moreover, breeding efforts in the past years have focused on improving certain favorable crop traits, leading to genetic bottlenecks. The use of crop wild relatives (CWRs) to expand genetic diversity and improve crop adaptability seems to be a promising and sustainable approach for crop improvement in the context of the ongoing climate challenges. In this review, we present the progress that has been achieved towards CWRs exploitation for enhanced resilience against major abiotic stressors (e.g., water deficiency, increased salinity, and extreme temperatures) in crops of high nutritional and economic value, such as tomato, legumes, and several woody perennial crops. The advances in -omics technologies have facilitated the elucidation of the molecular mechanisms that may underlie abiotic stress tolerance. Comparative analyses of whole genome sequencing (WGS) and transcriptomic profiling (RNA-seq) data between crops and their wild relative counterparts have unraveled important information with respect to the molecular basis of tolerance to abiotic stressors. These studies have uncovered genomic regions, specific stress-responsive genes, gene networks, and biochemical pathways associated with resilience to adverse conditions, such as heat, cold, drought, and salinity, and provide useful tools for the development of molecular markers to be used in breeding programs. CWRs constitute a highly valuable resource of genetic diversity, and by exploiting the full potential of this extended allele pool, new traits conferring abiotic-stress tolerance may be introgressed into cultivated varieties leading to superior and resilient genotypes. Future breeding programs may greatly benefit from CWRs utilization for overcoming crop production challenges arising from extreme environmental conditions.
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Affiliation(s)
- Aliki Kapazoglou
- Institute of Olive Tree, Subtropical Crops and Viticulture (IOSV), Department of Vitis, Hellenic Agricultural Organization-Dimitra (ELGO-Dimitra), Sofokli Venizelou 1, Lykovrysi, 14123 Athens, Greece
| | - Maria Gerakari
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Efstathia Lazaridi
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Konstantina Kleftogianni
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Efi Sarri
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Eleni Tani
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Penelope J. Bebeli
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
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Crandall SG, Spychalla J, Crouch UT, Acevedo FE, Naegele RP, Miles TD. Rotting Grapes Don't Improve with Age: Cluster Rot Disease Complexes, Management, and Future Prospects. Plant Dis 2022; 106:2013-2025. [PMID: 35108071 DOI: 10.1094/pdis-04-21-0695-fe] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cluster rots can be devastating to grape production around the world. There are several late-season rots that can affect grape berries, including Botrytis bunch rot, sour rot, black rot, Phomopsis fruit rot, bitter rot, and ripe rot. Tight-clustered varieties such as 'Pinot gris', 'Pinot noir', and 'Vignoles' are particularly susceptible to cluster rots. Symptoms or signs for these rots range from discolored berries or gray-brown sporulation in Botrytis bunch rot to sour rot, which smells distinctly of vinegar due to the presence of acetic acid bacteria. This review discusses the common symptoms and disease cycles of these different cluster rots. It also includes useful updates on disease diagnostics and management practices, including cultural practices in commercial vineyards and future prospects for disease management. By understanding what drives the development of different cluster rots, researchers will be able to identify new avenues for research to control these critical pathogens.
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Affiliation(s)
- Sharifa G Crandall
- Pennsylvania State University, Department of Plant Pathology & Environmental Microbiology, University Park, PA 16802
| | - Jamie Spychalla
- Pennsylvania State University, Department of Plant Pathology & Environmental Microbiology, University Park, PA 16802
| | - Uma T Crouch
- Pennsylvania State University, Department of Plant Pathology & Environmental Microbiology, University Park, PA 16802
| | - Flor E Acevedo
- Pennsylvania State University, Department of Entomology, University Park, PA 16802
| | - Rachel P Naegele
- United States Department of Agriculture-Agricultural Research Station, Parlier, CA 93648
| | - Timothy D Miles
- Michigan State University, Department of Plant, Soil and Microbial Sciences, East Lansing, MI 48824
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Berhe DT, Belew D. Evaluation of Wild, Wine, Table, and Raisin Grapevine (Vitis spp.) Genotypes in Gedeo Zone, Southern Ethiopia. ScientificWorldJournal 2022; 2022:1-15. [PMID: 35132309 PMCID: PMC8817867 DOI: 10.1155/2022/6852704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 12/10/2021] [Accepted: 01/15/2022] [Indexed: 11/26/2022] Open
Abstract
Grapevine is one of the major horticultural crops of the world with the cultivated area exceeding 7.5 million ha used for a myriad of products ranging through fresh table grape, preserves, juice, wine, and raisins. The main objective of this study was to introduce twenty-eight grapevine cultivars (ten wild, ten wine, four table, and four raisin grapes) into Gedeo Zone for the first time and ampelographically characterize them in Dilla and Yirgacheffe agroecological conditions in Gedeo Zone, Southern Ethiopia, from August 2018 to July 2021. Ten Vitis abyssinica wild grapevine cultivars were collected from Adama, Addis Ababa, Alamata, Arba Minch, Bahir Dar, Dire Dawa, Gondar, Hawassa, Jimma, and Jinka areas. Additional ten world class wine grapes were gathered from Ziway Castel Winery, and four table and four raisin grapes were also collected from Raya Horti Farm and Koka Vineyard at the same time. The experiment was a 2 × 28 factorial arranged in randomized complete block design (RCBD) with three replications, and data were analyzed using the R-software. The analysis of variance revealed that the interaction of cultivar and location significantly (P < 0.001) affected grapevine plant height, leaf number, number of fruits per plant, and tendril number per vine, while grapevine trunk diameter, flower cluster, root length, and number of suckers per vines were not significantly (P > 0.05) influenced by the interaction of the two factors. Generally, the wine grapevine cultivars had lower canopy such as plant height, leaf number, number of tendrils, and suckering vines while these registered a higher number of fruits per plant, trunk diameter, flower cluster, and root length compared to the wild grapevine cultivars. The results of the present study suggested that Syrah, Chenin Blanc, and Grenache can produce high grapevine berry yield and wine quality in Gedeo Zone agroecology particularly in Dilla location. The wild grapevines collected from Dire Dawa, Arba Minch, Jinka, and Alamata were the potential candidates for the world class wine, raisin, and table grapevines which could open new frontiers in the future for Ethiopian native Vitis abyssinica wild grapevine breeding and genetic engineering that will help to move the national and international viticulture and enology industry forward. As the Ethiopian native grapevines are at the risk of total extinction, adequate conservation strategies are required. Breeding, detailed identification, and introducing the potential grapes in different regions of the country are needed. This finding represents a step forward in efforts to understand hybridization of Vitis abyssinica grapevine with Vitis vinifera and other new world Vitis species.
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Foria S, Magris G, Jurman I, Schwope R, De Candido M, De Luca E, Ivanišević D, Morgante M, Di Gaspero G. Extent of wild-to-crop interspecific introgression in grapevine (Vitis vinifera) as a consequence of resistance breeding and implications for the crop species definition. Hortic Res 2022; 9:uhab010. [PMID: 35039824 PMCID: PMC8801725 DOI: 10.1093/hr/uhab010] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 01/18/2022] [Accepted: 09/25/2021] [Indexed: 05/31/2023]
Abstract
Over the past two centuries, introgression through repeated backcrossing has introduced disease resistance from wild grape species into the domesticated lineage Vitis vinifera subsp. sativa. Introgression lines are being cultivated over increasing vineyard surface areas, as their wines now rival in quality those obtained from preexisting varieties. There is, however, a lot of debate about whether and how wine laws defining commercial product categories, which are based on the classification of V. vinifera and interspecific hybrid grapes, should be revised to accommodate novel varieties that do not fit either category. Here, we developed a method of multilocus genotype analysis using short-read resequencing to identify haplotypic blocks of wild ancestry in introgression lines and quantify the physical length of chromosome segments free-of-introgression or with monoallelic and biallelic introgression. We used this genomic data to characterize species, hybrids and introgression lines and show that newly released resistant varieties contain 76.5-94.8% of V. vinifera DNA. We found that varietal wine ratings are not always commensurate with the percentage of V. vinifera ancestry and linkage drag of wild alleles around known resistance genes persists over at least 7.1-11.5 Mb, slowing down the recovery of the recurrent parental genome. This method also allowed us to identify the donor species of known resistance haplotypes, define the ancestry of wild genetic background in introgression lines with complex pedigrees, validate the ancestry of the historic varieties Concord and Norton, and unravel sample curation errors in public databases.
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Affiliation(s)
- Serena Foria
- Istituto di Genomica Applicata,
via Jacopo Linussio, 51, 33100 Udine, Italy
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100 Udine, Italy
- Dr. Schär R&D Centre, Padriciano 99, 34149 Trieste, Italy
| | - Gabriele Magris
- Istituto di Genomica Applicata,
via Jacopo Linussio, 51, 33100 Udine, Italy
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100 Udine, Italy
| | - Irena Jurman
- Istituto di Genomica Applicata,
via Jacopo Linussio, 51, 33100 Udine, Italy
| | - Rachel Schwope
- Istituto di Genomica Applicata,
via Jacopo Linussio, 51, 33100 Udine, Italy
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100 Udine, Italy
| | - Massimo De Candido
- VCR Research Center, Vivai Cooperativi Rauscedo, Via Ruggero Forti 4, 33095 San Giorgio della Richinvelda, Italy
| | - Elisa De Luca
- VCR Research Center, Vivai Cooperativi Rauscedo, Via Ruggero Forti 4, 33095 San Giorgio della Richinvelda, Italy
| | - Dragoslav Ivanišević
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21102 Novi Sad, Serbia
| | - Michele Morgante
- Istituto di Genomica Applicata,
via Jacopo Linussio, 51, 33100 Udine, Italy
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100 Udine, Italy
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Harris ZN, Awale M, Bhakta N, Chitwood DH, Fennell A, Frawley E, Klein LL, Kovacs LG, Kwasniewski M, Londo JP, Ma Q, Migicovsky Z, Swift JF, Miller AJ. Multi-dimensional leaf phenotypes reflect root system genotype in grafted grapevine over the growing season. Gigascience 2021; 10:giab087. [PMID: 34966928 PMCID: PMC8716362 DOI: 10.1093/gigascience/giab087] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/20/2021] [Accepted: 12/02/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Modern biological approaches generate volumes of multi-dimensional data, offering unprecedented opportunities to address biological questions previously beyond reach owing to small or subtle effects. A fundamental question in plant biology is the extent to which below-ground activity in the root system influences above-ground phenotypes expressed in the shoot system. Grafting, an ancient horticultural practice that fuses the root system of one individual (the rootstock) with the shoot system of a second, genetically distinct individual (the scion), is a powerful experimental system to understand below-ground effects on above-ground phenotypes. Previous studies on grafted grapevines have detected rootstock influence on scion phenotypes including physiology and berry chemistry. However, the extent of the rootstock's influence on leaves, the photosynthetic engines of the vine, and how those effects change over the course of a growing season, are still largely unknown. RESULTS Here, we investigate associations between rootstock genotype and shoot system phenotypes using 5 multi-dimensional leaf phenotyping modalities measured in a common grafted scion: ionomics, metabolomics, transcriptomics, morphometrics, and physiology. Rootstock influence is ubiquitous but subtle across modalities, with the strongest signature of rootstock observed in the leaf ionome. Moreover, we find that the extent of rootstock influence on scion phenotypes and patterns of phenomic covariation are highly dynamic across the season. CONCLUSIONS These findings substantially expand previously identified patterns to demonstrate that rootstock influence on scion phenotypes is complex and dynamic and underscore that broad understanding necessitates volumes of multi-dimensional data previously unmet.
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Affiliation(s)
- Zachary N Harris
- Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, MO 63103-2010, USA
- Donald Danforth Plant Science Center, 975 N. Warson Road, St. Louis, MO 63132-2918, USA
| | - Mani Awale
- Division of Plant Sciences, University of Missouri, 135 Eckles Hall, Columbia, MO 65211, USA
| | - Niyati Bhakta
- Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, MO 63103-2010, USA
- Donald Danforth Plant Science Center, 975 N. Warson Road, St. Louis, MO 63132-2918, USA
| | - Daniel H Chitwood
- Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA
- Department of Computational Mathematics, Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Anne Fennell
- Department of Agronomy, Horticulture & Plant Science, South Dakota State University, Brookings, SD 57006, USA
| | - Emma Frawley
- Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, MO 63103-2010, USA
- Donald Danforth Plant Science Center, 975 N. Warson Road, St. Louis, MO 63132-2918, USA
| | - Laura L Klein
- Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, MO 63103-2010, USA
- Donald Danforth Plant Science Center, 975 N. Warson Road, St. Louis, MO 63132-2918, USA
| | - Laszlo G Kovacs
- Department of Biology, Missouri State University, 901 S. National Avenue, Springfield, MO 65897, USA
| | - Misha Kwasniewski
- Division of Plant Sciences, University of Missouri, 135 Eckles Hall, Columbia, MO 65211, USA
| | - Jason P Londo
- Grape Genetics Research Unit, United States Department of Agriculture - Agricultural Research Service, Geneva, NY, 14456, USA
| | - Qin Ma
- Department of Biomedical Informatics, The Ohio State University, 1585 Neil Ave, Columbus, OH 43210, USA
| | - Zoë Migicovsky
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada
| | - Joel F Swift
- Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, MO 63103-2010, USA
- Donald Danforth Plant Science Center, 975 N. Warson Road, St. Louis, MO 63132-2918, USA
| | - Allison J Miller
- Department of Biology, Saint Louis University, 3507 Laclede Avenue, St. Louis, MO 63103-2010, USA
- Donald Danforth Plant Science Center, 975 N. Warson Road, St. Louis, MO 63132-2918, USA
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Gutierrez B, Schwaninger H, Meakem V, Londo J, Zhong GY. Phenological diversity in wild and hybrid grapes (Vitis) from the USDA-ARS cold-hardy grape collection. Sci Rep 2021; 11:24292. [PMID: 34934135 DOI: 10.1038/s41598-021-03783-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/07/2021] [Indexed: 11/30/2022] Open
Abstract
Wild grape relatives and hybrids have been useful in breeding for tolerance to biotic and abiotic stress, however, few studies have emphasized wild and hybrid grapevines for phenological diversity. Utilization of phenological diversity in grapevine breeding could facilitate expansion of grape production into more varied climate regions. Budbreak, bloom, and veraison observations for 1583 accessions from 20 taxa from the United States Department of Agriculture Vitis collection in Geneva, New York, USA. Genotypic and species variation were estimated. Vitis vinifera ancestry was estimated in Vitis hybrids using principal components analysis. Observations ranged 26.6–162.1 (79–141 JD) with an average of 82.6 GDD (118 JD) for budbreak, 206.8–1055.2 (141–222 JD) with an average of 371.9 GDD (163 JD) for bloom, and 849.9–1627.0 (202–290 JD) with an average of 1207.9 GDD (235 JD) for veraison. Seasonal correlations were high for bloom and veraison (0.85–0.95) and moderate for budbreak (0.61–0.65). Moderate heritability was estimated for veraison (0.62) and bloom (0.49), and weak heritability for budbreak (0.2). The species effect was greatest in bloom and explained 42% of the variation, with increasing bloom GDD associated with increasing contribution of V. vinifera in Vitis hybrids.
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Hübner S, Kantar MB. Tapping Diversity From the Wild: From Sampling to Implementation. Front Plant Sci 2021; 12:626565. [PMID: 33584776 PMCID: PMC7873362 DOI: 10.3389/fpls.2021.626565] [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] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/07/2021] [Indexed: 05/05/2023]
Abstract
The diversity observed among crop wild relatives (CWRs) and their ability to flourish in unfavorable and harsh environments have drawn the attention of plant scientists and breeders for many decades. However, it is also recognized that the benefit gained from using CWRs in breeding is a potential rose between thorns of detrimental genetic variation that is linked to the trait of interest. Despite the increased interest in CWRs, little attention was given so far to the statistical, analytical, and technical considerations that should guide the sampling design, the germplasm characterization, and later its implementation in breeding. Here, we review the entire process of sampling and identifying beneficial genetic variation in CWRs and the challenge of using it in breeding. The ability to detect beneficial genetic variation in CWRs is strongly affected by the sampling design which should be adjusted to the spatial and temporal variation of the target species, the trait of interest, and the analytical approach used. Moreover, linkage disequilibrium is a key factor that constrains the resolution of searching for beneficial alleles along the genome, and later, the ability to deplete linked deleterious genetic variation as a consequence of genetic drag. We also discuss how technological advances in genomics, phenomics, biotechnology, and data science can improve the ability to identify beneficial genetic variation in CWRs and to exploit it in strive for higher-yielding and sustainable crops.
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Affiliation(s)
- Sariel Hübner
- Galilee Research Institute (MIGAL), Tel-Hai College, Qiryat Shemona, Israel
- *Correspondence: Sariel Hübner,
| | - Michael B. Kantar
- Department of Tropical Plant and Soil Sciences, University of Hawai’i at Mânoa, Honolulu, HI, United States
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Migicovsky Z, Gardner KM, Richards C, Thomas Chao C, Schwaninger HR, Fazio G, Zhong GY, Myles S. Genomic consequences of apple improvement. Hortic Res 2021; 8:9. [PMID: 33384408 PMCID: PMC7775473 DOI: 10.1038/s41438-020-00441-7] [Citation(s) in RCA: 25] [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: 10/05/2020] [Accepted: 11/09/2020] [Indexed: 05/10/2023]
Abstract
The apple (Malus domestica) is one of the world's most commercially important perennial crops and its improvement has been the focus of human effort for thousands of years. Here, we genetically characterise over 1000 apple accessions from the United States Department of Agriculture (USDA) germplasm collection using over 30,000 single-nucleotide polymorphisms (SNPs). We confirm the close genetic relationship between modern apple cultivars and their primary progenitor species, Malus sieversii from Central Asia, and find that cider apples derive more of their ancestry from the European crabapple, Malus sylvestris, than do dessert apples. We determine that most of the USDA collection is a large complex pedigree: over half of the collection is interconnected by a series of first-degree relationships. In addition, 15% of the accessions have a first-degree relationship with one of the top 8 cultivars produced in the USA. With the exception of 'Honeycrisp', the top 8 cultivars are interconnected to each other via pedigree relationships. The cultivars 'Golden Delicious' and 'Red Delicious' were found to have over 60 first-degree relatives, consistent with their repeated use by apple breeders. We detected a signature of intense selection for red skin and provide evidence that breeders also selected for increased firmness. Our results suggest that Americans are eating apples largely from a single family tree and that the apple's future improvement will benefit from increased exploitation of its tremendous natural genetic diversity.
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Affiliation(s)
- Zoë Migicovsky
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, Canada
| | - Kyle M Gardner
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, Canada
- Agriculture and Agri-Food Canada, Fredericton Research and Development Centre, Fredericton, NB, Canada
| | | | - C Thomas Chao
- USDA-ARS, Grape Genetics Research Unit, Geneva, NY, USA
| | | | - Gennaro Fazio
- USDA-ARS, Grape Genetics Research Unit, Geneva, NY, USA
| | - Gan-Yuan Zhong
- USDA-ARS, Grape Genetics Research Unit, Geneva, NY, USA.
| | - Sean Myles
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, Canada.
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Zecca G, Labra M, Grassi F. Untangling the Evolution of American Wild Grapes: Admixed Species and How to Find Them. Front Plant Sci 2020; 10:1814. [PMID: 32117355 PMCID: PMC7025467 DOI: 10.3389/fpls.2019.01814] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 12/30/2019] [Indexed: 05/26/2023]
Abstract
Natural hybridization and introgression are central evolutionary processes in grape genus (Vitis). On the other hand, the interspecific relationships among grapes, the directionality of the inferred admixture events and the parents of hybrids are not yet completely clarified. The grapes are economically important crops characterized by tendrils used to climb on the trees and the fruits harvested by humans especially for the consumption or to produce wines and liquors. The American grapes (ca. 30 species) are recognized as an important resource because they show biotic and abiotic resistances. We analyzed 3,885 genome-wide SNPs from 31 American Vitis species using the TreeMix software combined with the f3 and f4 tests. This approach allowed us to infer phylogenetic relationships and to explore the natural admixture among taxa. Our results confirmed the existence of all hybrid species recognized in literature (V. x champinii, V. x doaniana, V. x novae-angliae, and V. x slavinii), identifying their most likely parent species and provided evidence of additional gene flows between distantly related species. We discuss our results to elucidate the origin of American wild grapes, demonstrating that admixture events have ancient origins. We observe that gene flows have involved taxa currently spread through the southern regions of North America. Consequently, we propose that glacial cycles could have triggered the contact between interfertile taxa promoting local hybridization events. We conclude by discussing the phylogenetic implications of our findings and showing that TreeMix can provide novel insights into the evolutionary history of grapes.
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Affiliation(s)
- Giovanni Zecca
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy
| | - Massimo Labra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milano, Italy
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12
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Sargolzaei M, Maddalena G, Bitsadze N, Maghradze D, Bianco PA, Failla O, Toffolatti SL, De Lorenzis G. Rpv29, Rpv30 and Rpv31: Three Novel Genomic Loci Associated With Resistance to Plasmopara viticola in Vitis vinifera. Front Plant Sci 2020; 11:562432. [PMID: 33163011 PMCID: PMC7583455 DOI: 10.3389/fpls.2020.562432] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/17/2020] [Indexed: 05/21/2023]
Abstract
Plasmopara viticola (Berk. et Curt.) Berl. and de Toni, the agent of downy mildew, is one of the most important pathogens of European grapevine (Vitis vinifera L.). Extensive evaluation of cultivated grapevine germplasm has highlighted the existence of resistant phenotypes in the Georgian (Southern Caucasus) germplasm. Resistance is shown as a reduction in disease severity. Unraveling the genetic architecture of grapevine response to P. viticola infection is crucial to develop resistant varieties and reduce the impact of disease management. The aim of this work was to apply a genome-wide association (GWA) approach to a panel of Georgian-derived accessions phenotyped for P. viticola susceptibility and genotyped with Vitis18kSNP chip array. GWA identified three highly significant novel loci on chromosomes 14 (Rpv29), 3 (Rpv30) and 16 (Rpv31) associated with a low level of pathogen sporulation. Rpv29, Rpv30, and Rpv31 loci appeared to be associated with plant defense genes against biotic stresses, such as genes involved in pathogen recognition and signal transduction. This study provides the first evidence of resistant loci against P. viticola in V. vinifera germplasm, and identifies potential target genes for breeding P. viticola resistant grapevine cultivars.
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Affiliation(s)
- Maryam Sargolzaei
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Giuliana Maddalena
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Nana Bitsadze
- Department of Agriculture and Life Sciences, Agricultural University of Georgia, Tbilisi, Georgia
| | - David Maghradze
- Faculty of Viticulture and Winemaking, Caucasus International University, Tbilisi, Georgia
- National Wine Agency of Georgia, Tbilisi, Georgia
| | - Piero Attilio Bianco
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Osvaldo Failla
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Silvia Laura Toffolatti
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
- *Correspondence: Gabriella De Lorenzis,
| | - Gabriella De Lorenzis
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
- Silvia Laura Toffolatti,
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13
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Girollet N, Rubio B, Lopez-Roques C, Valière S, Ollat N, Bert PF. De novo phased assembly of the Vitis riparia grape genome. Sci Data 2019; 6:127. [PMID: 31324816 DOI: 10.1038/s41597-019-0133-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/19/2019] [Indexed: 12/30/2022] Open
Abstract
Grapevine is one of the most important fruit species in the world. In order to better understand genetic basis of traits variation and facilitate the breeding of new genotypes, we sequenced, assembled, and annotated the genome of the American native Vitis riparia, one of the main species used worldwide for rootstock and scion breeding. A total of 164 Gb raw DNA reads were obtained from Vitis riparia resulting in a 225X depth of coverage. We generated a genome assembly of the V. riparia grape de novo using the PacBio long-reads that was phased with the 10x Genomics Chromium linked-reads. At the chromosome level, a 500 Mb genome was generated with a scaffold N50 size of 1 Mb. More than 34% of the whole genome were identified as repeat sequences, and 37,207 protein-coding genes were predicted. This genome assembly sets the stage for comparative genomic analysis of the diversification and adaptation of grapevine and will provide a solid resource for further genetic analysis and breeding of this economically important species. Design Type(s) | sequence assembly objective • genetic mapping and linkage analysis objective • sequence annotation objective | Measurement Type(s) | whole genome sequencing assay | Technology Type(s) | DNA sequencing | Factor Type(s) | | Sample Characteristic(s) | Vitis riparia • leaf |
Machine-accessible metadata file describing the reported data (ISA-Tab format)
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14
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De Ollas C, Morillón R, Fotopoulos V, Puértolas J, Ollitrault P, Gómez-Cadenas A, Arbona V. Facing Climate Change: Biotechnology of Iconic Mediterranean Woody Crops. Front Plant Sci 2019; 10:427. [PMID: 31057569 PMCID: PMC6477659 DOI: 10.3389/fpls.2019.00427] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 03/21/2019] [Indexed: 05/03/2023]
Abstract
The Mediterranean basin is especially sensitive to the adverse outcomes of climate change and especially to variations in rainfall patterns and the incidence of extremely high temperatures. These two concurring adverse environmental conditions will surely have a detrimental effect on crop performance and productivity that will be particularly severe on woody crops such as citrus, olive and grapevine that define the backbone of traditional Mediterranean agriculture. These woody species have been traditionally selected for traits such as improved fruit yield and quality or alteration in harvesting periods, leaving out traits related to plant field performance. This is currently a crucial aspect due to the progressive and imminent effects of global climate change. Although complete genome sequence exists for sweet orange (Citrus sinensis) and clementine (Citrus clementina), olive tree (Olea europaea) and grapevine (Vitis vinifera), the development of biotechnological tools to improve stress tolerance still relies on the study of the available genetic resources including interspecific hybrids, naturally occurring (or induced) polyploids and wild relatives under field conditions. To this respect, post-genomic era studies including transcriptomics, metabolomics and proteomics provide a wide and unbiased view of plant physiology and biochemistry under adverse environmental conditions that, along with high-throughput phenotyping, could contribute to the characterization of plant genotypes exhibiting physiological and/or genetic traits that are correlated to abiotic stress tolerance. The ultimate goal of precision agriculture is to improve crop productivity, in terms of yield and quality, making a sustainable use of land and water resources under adverse environmental conditions using all available biotechnological tools and high-throughput phenotyping. This review focuses on the current state-of-the-art of biotechnological tools such as high throughput -omics and phenotyping on grapevine, citrus and olive and their contribution to plant breeding programs.
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Affiliation(s)
- Carlos De Ollas
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castellón de la Plana, Spain
| | - Raphaël Morillón
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Petit-Bourg, France
| | - Vasileios Fotopoulos
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus
| | - Jaime Puértolas
- Lancaster Environment Centre, Lancaster University, Lancaster, United Kingdom
| | - Patrick Ollitrault
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), San-Giuliano, France
| | - Aurelio Gómez-Cadenas
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castellón de la Plana, Spain
| | - Vicent Arbona
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castellón de la Plana, Spain
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15
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Revord R, Lovell S, Molnar T, Wolz K, Mattia C. Germplasm Development of Underutilized Temperate U.S. Tree Crops. Sustainability 2019; 11:1546. [DOI: 10.3390/su11061546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the Midwest U.S. dominated corn-soybean landscape, agroforestry systems can be particularly valuable for increasing the provisioning and regulatory capacity of the agricultural landscape. However, these systems have not yet been broadly integrated into the landscape of this region since they are mostly relegated to marginal lands. A growing body of literature suggests a path to increase the adoption of agroforestry in the Midwest U.S. lies in the incorporation of low-input food-producing tree species that provide economic incentives for farmers. Studies of the system-level integration of such approaches have proceeded by using the currently available cultivars and breeding selections of various tree nut and fruit species. While existing varieties and breeding selections provide the opportunity for initial system development and integration, their broad adaptability to the Midwest U.S. and its marginal land-types is unexplored. Thus, a second tier of research includes the genetic improvement and adaptation of tree crop selections to their respective target environments throughout the Midwest U.S. Fortunately, select tree crops of interest are amendable to systematic breeding and have wild relatives that are endemic across the region. In this paper, we discuss the value of these wild relatives for broadening the adaption of cultivated tree crop selections by using the hazelnut as an example species. We present a framework using geospatial tools to define and prioritize target environments for breeding and, in turn, exploiting wild relative germplasm.
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16
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Miao C, Fang J, Li D, Liang P, Zhang X, Yang J, Schnable JC, Tang H. Genotype-Corrector: improved genotype calls for genetic mapping in F 2 and RIL populations. Sci Rep 2018; 8:10088. [PMID: 29973633 DOI: 10.1038/s41598-018-28294-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 06/20/2018] [Indexed: 12/21/2022] Open
Abstract
F2 and recombinant inbred lines (RILs) populations are very commonly used in plant genetic mapping studies. Although genome-wide genetic markers like single nucleotide polymorphisms (SNPs) can be readily identified by a wide array of methods, accurate genotype calling remains challenging, especially for heterozygous loci and missing data due to low sequencing coverage per individual. Therefore, we developed Genotype-Corrector, a program that corrects genotype calls and imputes missing data to improve the accuracy of genetic mapping. Genotype-Corrector can be applied in a wide variety of genetic mapping studies that are based on low coverage whole genome sequencing (WGS) or Genotyping-by-Sequencing (GBS) related techniques. Our results show that Genotype-Corrector achieves high accuracy when applied to both synthetic and real genotype data. Compared with using raw or only imputed genotype calls, the linkage groups built by corrected genotype data show much less noise and significant distortions can be corrected. Additionally, Genotype-Corrector compares favorably to the popular imputation software LinkImpute and Beagle in both F2 and RIL populations. Genotype-Corrector is publicly available on GitHub at https://github.com/freemao/Genotype-Corrector .
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17
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Klein LL, Miller AJ, Ciotir C, Hyma K, Uribe-Convers S, Londo J. High-throughput sequencing data clarify evolutionary relationships among North American Vitis species and improve identification in USDA Vitis germplasm collections. Am J Bot 2018; 105:215-226. [PMID: 29578297 DOI: 10.1002/ajb2.1033] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 11/04/2017] [Accepted: 01/04/2018] [Indexed: 06/08/2023]
Abstract
PREMISE OF THE STUDY Grapes are one of the most economically important berry crops worldwide, with the vast majority of production derived from the domesticated Eurasian species Vitis vinifera. Expansion of production into new areas, development of new cultivars, and concerns about adapting grapevines for changing climates necessitate the use of wild grapevine species in breeding programs. Diversity within Vitis has long been a topic of study; however, questions remain regarding relationships between species. Furthermore, the identity of some living accessions is unclear. METHODS This study generated 11,020 single nucleotide polymorphism (SNP) markers for more than 300 accessions in the USDA-ARS grape germplasm repository using genotyping-by-sequencing. Resulting data sets were used to reconstruct evolutionary relationships among several North American and Eurasian Vitis species, and to suggest taxonomic labels for previously unidentified and misidentified germplasm accessions based on genetic distance. KEY RESULTS Maximum likelihood analyses of SNP data support the monophyly of Vitis, subg. Vitis, a Eurasian subg. Vitis clade, and a North American subg. Vitis clade. Data delineate species groups within North America. In addition, analysis of genetic distance suggested taxonomic identities for 20 previously unidentified Vitis accessions and for 28 putatively misidentified accessions. CONCLUSIONS This work advances understanding of Vitis evolutionary relationships and provides the foundation for ongoing germplasm enhancement. It supports conservation and breeding efforts by contributing to a growing genetic framework for identifying novel genetic variation and for incorporating new, unsampled populations into the germplasm repository system.
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Affiliation(s)
- Laura L Klein
- Department of Biology, Saint Louis University, St. Louis, MO, 63110, USA
| | - Allison J Miller
- Department of Biology, Saint Louis University, St. Louis, MO, 63110, USA
| | - Claudia Ciotir
- Department of Biology, Saint Louis University, St. Louis, MO, 63110, USA
| | - Katie Hyma
- Cornell University, Institute for Biotechnology, Cornell University, Ithaca, NY, 14853, USA
| | - Simon Uribe-Convers
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jason Londo
- United States Department of Agriculture, Agricultural Research Service, Grape Genetics Research Unit, Geneva, NY, 14425, USA
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18
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Money D, Migicovsky Z, Gardner K, Myles S. LinkImputeR: user-guided genotype calling and imputation for non-model organisms. BMC Genomics 2017; 18:523. [PMID: 28693460 PMCID: PMC5504746 DOI: 10.1186/s12864-017-3873-5] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/20/2017] [Indexed: 11/24/2022] Open
Abstract
Background Genomic studies such as genome-wide association and genomic selection require genome-wide genotype data. All existing technologies used to create these data result in missing genotypes, which are often then inferred using genotype imputation software. However, existing imputation methods most often make use only of genotypes that are successfully inferred after having passed a certain read depth threshold. Because of this, any read information for genotypes that did not pass the threshold, and were thus set to missing, is ignored. Most genomic studies also choose read depth thresholds and quality filters without investigating their effects on the size and quality of the resulting genotype data. Moreover, almost all genotype imputation methods require ordered markers and are therefore of limited utility in non-model organisms. Results Here we introduce LinkImputeR, a software program that exploits the read count information that is normally ignored, and makes use of all available DNA sequence information for the purposes of genotype calling and imputation. It is specifically designed for non-model organisms since it requires neither ordered markers nor a reference panel of genotypes. Using next-generation DNA sequence (NGS) data from apple, cannabis and grape, we quantify the effect of varying read count and missingness thresholds on the quantity and quality of genotypes generated from LinkImputeR. We demonstrate that LinkImputeR can increase the number of genotype calls by more than an order of magnitude, can improve genotyping accuracy by several percent and can thus improve the power of downstream analyses. Moreover, we show that the effects of quality and read depth filters can differ substantially between data sets and should therefore be investigated on a per-study basis. Conclusions By exploiting DNA sequence data that is normally ignored during genotype calling and imputation, LinkImputeR can significantly improve both the quantity and quality of genotype data generated from NGS technologies. It enables the user to quickly and easily examine the effects of varying thresholds and filters on the number and quality of the resulting genotype calls. In this manner, users can decide on thresholds that are most suitable for their purposes. We show that LinkImputeR can significantly augment the value and utility of NGS data sets, especially in non-model organisms with poor genomic resources. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3873-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daniel Money
- Department of Plant and Animal Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada.
| | - Zoë Migicovsky
- Department of Plant and Animal Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada
| | - Kyle Gardner
- Department of Plant and Animal Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada
| | - Sean Myles
- Department of Plant and Animal Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada
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19
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Migicovsky Z, Myles S. Exploiting Wild Relatives for Genomics-assisted Breeding of Perennial Crops. Front Plant Sci 2017; 8:460. [PMID: 28421095 PMCID: PMC5379136 DOI: 10.3389/fpls.2017.00460] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 03/16/2017] [Indexed: 05/18/2023]
Abstract
Perennial crops are vital contributors to global food production and nutrition. However, the breeding of new perennial crops is an expensive and time-consuming process due to the large size and lengthy juvenile phase of many species. Genomics provides a valuable tool for improving the efficiency of breeding by allowing progeny possessing a trait of interest to be selected at the seed or seedling stage through marker-assisted selection (MAS). The benefits of MAS to a breeder are greatest when the targeted species takes a long time to reach maturity and is expensive to grow and maintain. Thus, MAS holds particular promise in perennials since they are often costly and time-consuming to grow to maturity and evaluate. Well-characterized germplasm that breeders can tap into for improving perennials is often limited in genetic diversity. Wild relatives are a largely untapped source of desirable traits including disease resistance, fruit quality, and rootstock characteristics. This review focuses on the use of genomics-assisted breeding in perennials, especially as it relates to the introgression of useful traits from wild relatives. The identification of genetic markers predictive of beneficial phenotypes derived from wild relatives is hampered by genomic tools designed for domesticated species that are often ill-suited for use in wild relatives. There is therefore an urgent need for better genomic resources from wild relatives. A further barrier to exploiting wild diversity through genomics is the phenotyping bottleneck: well-powered genetic mapping requires accurate and cost-effective characterization of large collections of diverse wild germplasm. While genomics will always be used in combination with traditional breeding methods, it is a powerful tool for accelerating the speed and reducing the costs of breeding while harvesting the potential of wild relatives for improving perennial crops.
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Affiliation(s)
- Zoë Migicovsky
- Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University,Truro, NS, Canada
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20
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Migicovsky Z, Sawler J, Gardner KM, Aradhya MK, Prins BH, Schwaninger HR, Bustamante CD, Buckler ES, Zhong GY, Brown PJ, Myles S. Patterns of genomic and phenomic diversity in wine and table grapes. Hortic Res 2017; 4:17035. [PMID: 28791127 PMCID: PMC5539807 DOI: 10.1038/hortres.2017.35] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 06/16/2017] [Indexed: 05/18/2023]
Abstract
Grapes are one of the most economically and culturally important crops worldwide, and they have been bred for both winemaking and fresh consumption. Here we evaluate patterns of diversity across 33 phenotypes collected over a 17-year period from 580 table and wine grape accessions that belong to one of the world's largest grape gene banks, the grape germplasm collection of the United States Department of Agriculture. We find that phenological events throughout the growing season are correlated, and quantify the marked difference in size between table and wine grapes. By pairing publicly available historical phenotype data with genome-wide polymorphism data, we identify large effect loci controlling traits that have been targeted during domestication and breeding, including hermaphroditism, lighter skin pigmentation and muscat aroma. Breeding for larger berries in table grapes was traditionally concentrated in geographic regions where Islam predominates and alcohol was prohibited, whereas wine grapes retained the ancestral smaller size that is more desirable for winemaking in predominantly Christian regions. We uncover a novel locus with a suggestive association with berry size that harbors a signature of positive selection for larger berries. Our results suggest that religious rules concerning alcohol consumption have had a marked impact on patterns of phenomic and genomic diversity in grapes.
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Affiliation(s)
- Zoë Migicovsky
- Department of Plant, Food and Environmental
Sciences, Faculty of Agriculture, Dalhousie University, Truro,
NS
B2N 5E3, Canada
| | - Jason Sawler
- Department of Plant, Food and Environmental
Sciences, Faculty of Agriculture, Dalhousie University, Truro,
NS
B2N 5E3, Canada
- Anandia Labs, Vancouver,
BC
V6T 1Z4, Canada
| | - Kyle M Gardner
- Department of Plant, Food and Environmental
Sciences, Faculty of Agriculture, Dalhousie University, Truro,
NS
B2N 5E3, Canada
- Agriculture and Agri-Food Canada, Fredericton
Research and Development Centre, Fredericton, NB,
Canada
E3B 4Z7
| | - Mallikarjuna K Aradhya
- National Clonal Germplasm Repository, United
States Department of Agriculture-Agricultural Research Service, University of
California, Davis, CA
95616, USA
| | - Bernard H Prins
- National Clonal Germplasm Repository, United
States Department of Agriculture-Agricultural Research Service, University of
California, Davis, CA
95616, USA
| | - Heidi R Schwaninger
- United States Department of Agriculture,
Agricultural Research Service, Grape Genetics Research Unit, New York State Agricultural
Experiment Station, Cornell University, Geneva, NY
14456, USA
| | | | - Edward S Buckler
- Department of Plant Breeding and Genetics,
Cornell University, Ithaca, NY
14853, USA
| | - Gan-Yuan Zhong
- United States Department of Agriculture,
Agricultural Research Service, Grape Genetics Research Unit, New York State Agricultural
Experiment Station, Cornell University, Geneva, NY
14456, USA
- United States Department of Agriculture,
Agricultural Research Service, Plant Genetic Resources Unit, New York State Agricultural
Experiment Station, Cornell University, Geneva, NY
14456, USA
| | - Patrick J Brown
- Department of Crop Science, University of
Illinois, Urbana, IL
61801, USA
| | - Sean Myles
- Department of Plant, Food and Environmental
Sciences, Faculty of Agriculture, Dalhousie University, Truro,
NS
B2N 5E3, Canada
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21
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Joukhadar R, Daetwyler HD, Bansal UK, Gendall AR, Hayden MJ. Genetic Diversity, Population Structure and Ancestral Origin of Australian Wheat. Front Plant Sci 2017; 8:2115. [PMID: 29312381 PMCID: PMC5733070 DOI: 10.3389/fpls.2017.02115] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 11/28/2017] [Indexed: 05/22/2023]
Abstract
Since the introduction of wheat into Australia by the First Fleet settlers, germplasm from different geographical origins has been used to adapt wheat to the Australian climate through selection and breeding. In this paper, we used 482 cultivars, representing the breeding history of bread wheat in Australia since 1840, to characterize their diversity and population structure and to define the geographical ancestral background of Australian wheat germplasm. This was achieved by comparing them to a global wheat collection using in-silico chromosome painting based on SNP genotyping. The global collection involved 2,335 wheat accessions which was divided into 23 different geographical subpopulations. However, the whole set was reduced to 1,544 accessions to increase the differentiation and decrease the admixture among different global subpopulations to increase the power of the painting analysis. Our analysis revealed that the structure of Australian wheat germplasm and its geographic ancestors have changed significantly through time, especially after the Green Revolution. Before 1920, breeders used cultivars from around the world, but mainly Europe and Africa, to select potential cultivars that could tolerate Australian growing conditions. Between 1921 and 1970, a dependence on African wheat germplasm became more prevalent. Since 1970, a heavy reliance on International Maize and Wheat Improvement Center (CIMMYT) germplasm has persisted. Combining the results from linkage disequilibrium, population structure and in-silico painting revealed that the dependence on CIMMYT materials has varied among different Australian States, has shrunken the germplasm effective population size and produced larger linkage disequilibrium blocks. This study documents the evolutionary history of wheat breeding in Australia and provides an understanding for how the wheat genome has been adapted to local growing conditions. This information provides a guide for industry to assist with maintaining genetic diversity for long-term selection gains and to plan future breeding programs.
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Affiliation(s)
- Reem Joukhadar
- Department of Animal, Plant and Soil Sciences, La Trobe University, Bundoora, VIC, Australia
- Agriculture Victoria Research, AgriBio, Centre for Agribioscience, Bundoora, VIC, Australia
- *Correspondence: Reem Joukhadar
| | - Hans D. Daetwyler
- Agriculture Victoria Research, AgriBio, Centre for Agribioscience, Bundoora, VIC, Australia
- School of Applied Systems Biology, La Trobe University, Bundoora, VIC, Australia
| | - Urmil K. Bansal
- School of Life and Environmental Sciences, The University of Sydney Plant Breeding Institute, Cobbitty, NSW, Australia
| | - Anthony R. Gendall
- Department of Animal, Plant and Soil Sciences, La Trobe University, Bundoora, VIC, Australia
| | - Matthew J. Hayden
- Agriculture Victoria Research, AgriBio, Centre for Agribioscience, Bundoora, VIC, Australia
- School of Applied Systems Biology, La Trobe University, Bundoora, VIC, Australia
- Matthew J. Hayden
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22
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Pan Y, Wang X, Sun G, Li F, Gong X. Application of RAD Sequencing for Evaluating the Genetic Diversity of Domesticated Panax notoginseng (Araliaceae). PLoS One 2016; 11:e0166419. [PMID: 27846268 PMCID: PMC5112861 DOI: 10.1371/journal.pone.0166419] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 10/29/2016] [Indexed: 11/19/2022] Open
Abstract
Panax notoginseng, a traditional Chinese medicinal plant, has been cultivated and domesticated for approximately 400 years, mainly in Yunnan and Guangxi, two provinces in southwest China. This species was named according to cultivated rather than wild individuals, and no wild populations had been found until now. The genetic resources available on farms are important for both breeding practices and resource conservation. In the present study, the recently developed technology RADseq, which is based on next-generation sequencing, was used to analyze the genetic variation and differentiation of P. notoginseng. The nucleotide diversity and heterozygosity results indicated that P. notoginseng had low genetic diversity at both the species and population levels. Almost no genetic differentiation has been detected, and all populations were genetically similar due to strong gene flow and insufficient splitting time. Although the genetic diversity of P. notoginseng was low at both species and population levels, several traditional plantations had relatively high genetic diversity, as revealed by the He and π values and by the private allele numbers. These valuable genetic resources should be protected as soon as possible to facilitate future breeding projects. The possible geographical origin of Sanqi domestication was discussed based on the results of the genetic diversity analysis.
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Affiliation(s)
- Yuezhi Pan
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Xueqin Wang
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Guiling Sun
- Yunnan Key Laboratory for Wild Plant Resources, Kunming, China
| | - Fusheng Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Xun Gong
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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