Harnessing landrace diversity empowers wheat breeding
Author:
Cheng ShifengORCID, Feng CongORCID, Wingen Luzie U.ORCID, Cheng Hong, Riche Andrew B., Jiang MeiORCID, Leverington-Waite Michelle, Huang Zejian, Collier Sarah, Orford Simon, Wang XiaomingORCID, Awal Rajani, Barker Gary, O’Hara TomORCID, Lister Clare, Siluveru Ajay, Quiroz-Chávez JesúsORCID, Ramírez-González Ricardo H.ORCID, Bryant Ruth, Berry Simon, Bansal Urmil, Bariana Harbans S., Bennett Malcolm J.ORCID, Bicego BrenoORCID, Bilham Lorelei, Brown James K. M., Burridge AmandaORCID, Burt Chris, Buurman MilikaORCID, Castle March, Chartrain Laetitia, Chen Baizhi, Denbel Worku, Elkot Ahmed F., Fenwick Paul, Feuerhelm David, Foulkes John, Gaju OorbessyORCID, Gauley AdamORCID, Gaurav Kumar, Hafeez Amber N.ORCID, Han Ruirui, Horler Richard, Hou Junliang, Iqbal Muhammad S.ORCID, Kerton Matthew, Kondic-Spica AnkicaORCID, Kowalski Ania, Lage Jacob, Li Xiaolong, Liu Hongbing, Liu Shiyan, Lovegrove Alison, Ma Lingling, Mumford Cathy, Parmar Saroj, Philp Charlie, Playford Darryl, Przewieslik-Allen Alexandra M.ORCID, Sarfraz Zareen, Schafer David, Shewry Peter R., Shi Yan, Slafer Gustavo A.ORCID, Song BaoxingORCID, Song BoORCID, Steele David, Steuernagel BurkhardORCID, Tailby Phillip, Tyrrell Simon, Waheed AbdulORCID, Wamalwa Mercy N., Wang Xingwei, Wei Yanping, Winfield Mark, Wu Shishi, Wu YubingORCID, Wulff Brande B. H.ORCID, Xian Wenfei, Xu Yawen, Xu Yunfeng, Yuan Quan, Zhang Xin, Edwards Keith J., Dixon LauraORCID, Nicholson PaulORCID, Chayut Noam, Hawkesford Malcolm J.ORCID, Uauy CristobalORCID, Sanders Dale, Huang SanwenORCID, Griffiths SimonORCID
Abstract
AbstractHarnessing genetic diversity in major staple crops through the development of new breeding capabilities is essential to ensure food security1. Here we examined the genetic and phenotypic diversity of the A. E. Watkins landrace collection2 of bread wheat (Triticum aestivum), a major global cereal, by whole-genome re-sequencing of 827 Watkins landraces and 208 modern cultivars and in-depth field evaluation spanning a decade. We found that modern cultivars are derived from two of the seven ancestral groups of wheat and maintain very long-range haplotype integrity. The remaining five groups represent untapped genetic sources, providing access to landrace-specific alleles and haplotypes for breeding. Linkage disequilibrium-based haplotypes and association genetics analyses link Watkins genomes to the thousands of identified high-resolution quantitative trait loci and significant marker–trait associations. Using these structured germplasm, genotyping and informatics resources, we revealed many Watkins-unique beneficial haplotypes that can confer superior traits in modern wheat. Furthermore, we assessed the phenotypic effects of 44,338 Watkins-unique haplotypes, introgressed from 143 prioritized quantitative trait loci in the context of modern cultivars, bridging the gap between landrace diversity and current breeding. This study establishes a framework for systematically utilizing genetic diversity in crop improvement to achieve sustainable food security.
Publisher
Springer Science and Business Media LLC
Reference67 articles.
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