Harnessing Landrace Diversity Empowers Wheat Breeding for Climate Resilience-Reference-Cited by-同舟云学术

Harnessing Landrace Diversity Empowers Wheat Breeding for Climate Resilience

Published:2023-10-06 Issue: Volume: Page:
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Cheng Shifeng^ORCID,Feng Cong^ORCID,Wingen Luzie U.^ORCID,Cheng Hong^ORCID,Riche Andrew B.^ORCID,Jiang Mei^ORCID,Leverington-Waite Michelle,Huang Zejian^ORCID,Collier Sarah,Orford Simon^ORCID,Wang Xiaoming^ORCID,Awal Rajani^ORCID,Barker Gary^ORCID,O’Hara Tom^ORCID,Lister Clare^ORCID,Siluveru Ajay^ORCID,Quiroz-Chávez Jesús^ORCID,Ramírez-González Ricardo H.^ORCID,Bryant Ruth^ORCID,Berry Simon^ORCID,Bansal Urmil^ORCID,Bariana Harbans S.^ORCID,Bennett Malcolm J.^ORCID,Bicego Breno^ORCID,Bilham Lorelei^ORCID,Brown James K.M.,Burridge Amanda^ORCID,Burt Chris,Buurman Milika^ORCID,Castle March^ORCID,Chartrain Laetitia,Chen Baizhi^ORCID,Denbel Worku,Elkot Ahmed F.^ORCID,Fenwick Paul,Feuerhelm David,Foulkes John^ORCID,Gaju Oorbessy^ORCID,Gauley Adam^ORCID,Gaurav Kumar^ORCID,Hafeez Amber N.^ORCID,Han Ruirui^ORCID,Horler Richard^ORCID,Hou Junliang^ORCID,Iqbal Muhammad S.^ORCID,Kerton Matthew,Kondic-Spica Ankica^ORCID,Kowalski Ania,Lage Jacob,Li Xiaolong^ORCID,Liu Hongbing^ORCID,Liu Shiyan^ORCID,Lovegrove Alison^ORCID,Ma Lingling^ORCID,Mumford Cathy^ORCID,Parmar Saroj^ORCID,Philp Charlie,Playford Darryl,Przewieslik-Allen Alexandra M.^ORCID,Sarfraz Zareen^ORCID,Schafer David,Shewry Peter R.^ORCID,Shi Yan^ORCID,Slafer Gustavo^ORCID,Song Baoxing^ORCID,Song Bo^ORCID,Steele David^ORCID,Steuernagel Burkhard^ORCID,Tailby Phillip,Tyrrell Simon^ORCID,Waheed Abdul^ORCID,Wamalwa Mercy N.^ORCID,Wang Xingwei^ORCID,Wei Yanping^ORCID,Winfield Mark^ORCID,Wu Shishi^ORCID,Wu Yubing^ORCID,Wulff Brande B.H.^ORCID,Xian Wenfei^ORCID,Xu Yawen^ORCID,Xu Yunfeng^ORCID,Yuan Quan^ORCID,Zhang Xin^ORCID,Edwards Keith J.^ORCID,Dixon Laura^ORCID,Nicholson Paul^ORCID,Chayut Noam^ORCID,Hawkesford Malcolm J.^ORCID,Uauy Cristobal^ORCID,Sanders Dale^ORCID,Huang Sanwen^ORCID,Griffiths Simon^ORCID

Abstract

AbstractBreeding crops resilient to climate change is urgently needed to help ensure food security. A key challenge is to harness genetic diversity to optimise adaptation, yield, stress resilience and nutrition. We examined the genetic and phenotypic diversity of the A.E. Watkins landrace collection of bread wheat (Triticum aestivum), a major global cereal, through whole-genome re-sequencing (827 Watkins landraces and 208 modern cultivars) and in-depth field evaluation spanning a decade. We discovered that modern cultivars are derived from just two of the seven ancestral groups of wheat, leaving five groups as previously untapped sources for breeding. This provides access to landrace-specific functional variations using structured germplasm, genotyping and informatics resources. Employing complementary genetic populations and approaches, we identified thousands of high-resolution quantitative trait loci (QTL) and significant marker–trait associations for major traits, revealing many Watkins-unique loci that can confer superior traits in modern wheat. Furthermore, we identified and functionally verified causative genes for climate-change adaptation, nutritional enhancement and resistance to wheat blast. Finally, we assessed the phenotypic effects of 44,338 Watkins-unique haplotypes, introgressed from 143 prioritised QTL in the context of modern cultivars, bridging the gap between landrace diversity and current breeding. This study establishes a framework for systematically utilising genetic diversity in crop improvement to achieve sustainable food security.

Publisher

Cold Spring Harbor Laboratory

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