Differential selection of yield and quality traits has shaped genomic signatures of cowpea domestication and improvement

文献类型： 外文期刊

第一作者： Wu, Xinyi

作者： Wu, Xinyi;Li, Mao;Dong, Junyang;Wang, Baogen;Wu, Jian;Wu, Xiaohua;Wang, Ying;Wang, Jian;Lu, Zhongfu;Sun, Yuyan;Dong, Wenqi;Li, Guojing;Hu, Zhongyuan;Liao, Nanqiao;Zhang, Mingfang;Zhang, Yan;Yang, Yi;Li, Mao;Dong, Junyang;Wang, Baogen;Wu, Jian;Wu, Xiaohua;Wang, Ying;Wang, Jian;Lu, Zhongfu;Sun, Yuyan;Dong, Wenqi;Li, Guojing;Zhang, Mingfang;Zhang, Mingfang

作者机构：

期刊名称：NATURE GENETICS （ 影响因子：30.8； 五年影响因子：37.4 ）

ISSN： 1061-4036

年卷期： 2024 年 56 卷 5 期

页码：

收录情况： SCI

摘要： Cowpeas (tropical legumes) are important in ensuring food and nutritional security in developing countries, especially in sub-Saharan Africa. Herein, we report two high-quality genome assemblies of grain and vegetable cowpeas and we re-sequenced 344 accessions to characterize the genomic variations landscape. We identified 39 loci for ten important agronomic traits and more than 541 potential loci that underwent selection during cowpea domestication and improvement. In particular, the synchronous selections of the pod-shattering loci and their neighboring stress-relevant loci probably led to the enhancement of pod-shattering resistance and the compromise of stress resistance during the domestication from grain to vegetable cowpeas. Moreover, differential selections on multiple loci associated with pod length, grain number per pod, seed weight, pod and seed soluble sugars, and seed crude proteins shaped the yield and quality diversity in cowpeas. Our findings provide genomic insights into cowpea domestication and improvement footprints, enabling further genome-informed cultivar improvement of cowpeas. High-quality genome assemblies of grain and vegetable cowpeas and re-sequencing of 344 accessions characterize genomic variations between cowpea subspecies and their domestication and improvement under selection.

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