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A global resource for exploring and exploiting genetic variation in sorghum crop wild relatives

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Mace, E. S., Cruickshank, A. W., Tao, Y., Hunt, C. H. and Jordan, D. R. (2021) A global resource for exploring and exploiting genetic variation in sorghum crop wild relatives. Crop Science, 61 (1). pp. 150-162. ISSN 0011-183X


Article Link: https://doi.org/10.1002/csc2.20332

Publisher URL: https://acsess.onlinelibrary.wiley.com/doi/abs/10.1002/csc2.20332


One response to mitigate the impact of climate change on agricultural systems is to develop new varieties that are tolerant to the new range of biotic and abiotic challenges this change causes. This requires access to novel variants of genes for complex adaptive traits. Crop wild relatives are a potentially valuable source of these genes however these materials are often difficult to work with and identifying valuable alleles is difficult without substantial investment in pre-breeding. In this study we describe the development of a nested association mapping population for sorghum using two cultivated grain sorghum reference parents and 9 wild and exotic sorghum accessions as donors. The donor parents come from the verticilliflorum, drummondii and margaritiferum taxa and were sampled from a range of environments across Africa. In total the resource of consists of 13 populations and a total of 1,224 lines. The population has been genotyped with DArT markers which produced 42,372 unique SNP markers covering the genome. We determine the utility of the resource for high resolution mapping of complex traits by demonstrating that the exotics contain unique alleles for some example adaptive trait loci and by using the population for GWAS. The resource should provide useful material for plant breeders attempting to deal with the challenges generated by climate change. This article is protected by copyright. All rights reserved

Item Type:Article
Business groups:Crop and Food Science
Additional Information:© 2020 The Authors. Crop Science published by Wiley Periodicals LLC on behalf of Crop Science Society of America This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. This article also appears in: Adapting Agriculture to Climate Change: A Walk on the Wild Side https://acsess.onlinelibrary.wiley.com/doi/toc/10.1002/(ISSN)1435-0653.adapting-agri-to-climate-change
Subjects:Science > Botany > Genetics
Plant culture > Food crops
Plant culture > Field crops > Sorghum
Live Archive:17 Sep 2020 05:54
Last Modified:03 Sep 2021 16:46

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