Population genomics unravels the Holocene history of bread wheat and its relatives

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dc.creatorZhao, X.
dc.creatorGuo, Y.
dc.creatorKang, L.
dc.creatorYin, C.
dc.creatorBi, A.
dc.creatorXu, D.
dc.creatorZhang, Z.
dc.creatorZhang, J.
dc.creatorYang, X.
dc.creatorXu, J.
dc.creatorXu, S.
dc.creatorSong, X.
dc.creatorZhang, M.
dc.creatorLi, Y.
dc.creatorKear, P.
dc.creatorWang, J.
dc.creatorLiu, Z.
dc.creatorFu, X.
dc.creatorLu, F.
dc.date2023-03-16
dc.date2023-04-05T16:57:12Z
dc.date2023-04-05T16:57:12Z
dc.date.accessioned2026-06-27T17:56:25Z
dc.descriptionDeep knowledge of crop biodiversity is essential to improving global food security. Despite bread wheat serving as a keystone crop worldwide, the population history of bread wheat and its relatives, both cultivated and wild, remains elusive. By analysing whole-genome sequences of 795 wheat accessions, we found that bread wheat originated from the southwest coast of the Caspian Sea and underwent a slow speciation process, lasting ~3,300 yr owing to persistent gene flow from its relatives. Soon after, bread wheat spread across Eurasia and reached Europe, South Asia and East Asia ~7,000 to ~5,000 yr ago, shaping a diversified but occasionally convergent adaptive landscape in novel environments. By contrast, the cultivated relatives of bread wheat experienced a population decline by ~82% over the past ~2,000 yr due to the food choice shift of humans. Further biogeographical modelling predicted a continued population shrinking of many bread wheat relatives in the coming decades because of their vulnerability to the changing climate. These findings will guide future efforts in protecting and utilizing wheat biodiversity to enhance global wheat production.
dc.identifierhttps://hdl.handle.net/10568/129911
dc.identifier.urihttp://hdl.handle.net/123456789/149999
dc.languageen
dc.publisherSpringer
dc.rightsLimited Access
dc.sourceZhao, X.; Guo, Y.; Kang, L.; Yin, C.; Bi, A.; Xu, D.; Zhang, Z.; Zhang, J.; Yang, X.; Xu, J.; Xu, S.; Song, X.; Zhang, M.; Li, Y.; Kear, P.; Wang, J.; Liu, Z.; Fu, X.; Lu, F. 2023. Population genomics unravels the Holocene history of bread wheat and its relatives. Nature Plants. ISSN 2055-0278. 9(3), 403–419.
dc.subjectbiodiversity
dc.subjectfood security
dc.subjectgenomics
dc.titlePopulation genomics unravels the Holocene history of bread wheat and its relatives
dc.typeJournal Article

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