文献类型： 外文期刊

作者： Huang, Xuan-Zhao ¹ ; Gong, Shao-Da ¹ ; Shang, Xiao-hong ² ; Gao, Min ¹ ; Zhao, Bo-Yuan ¹ ; Xiao, Liang ² ; Shi, Ping-li ² ; Zeng, Wen-dan ² ; Cao, Sheng ² ; Wu, Zheng-dan ¹ ; Song, Jia-Ming ¹ ; Chen, Ling-Ling ¹ ; Yan, Hua-bing ² ;

作者机构： 1.Guangxi Univ, Coll Life Sci & Technol, State Key Lab Conservat & Utilizat Subtrop Agrobio, Nanning 530004, Guangxi, Peoples R China

2.Guangxi Acad Agr Sci GXAAS, Cash Crops Res Inst, Nanning 530007, Guangxi, Peoples R China

关键词： Pueraria; genome; evolution; population genomics; selection sweep

期刊名称：DNA RESEARCH （ 影响因子：4.1； 五年影响因子：4.4 ）

ISSN： 1340-2838

年卷期： 2024 年 31 卷 3 期

页码：

收录情况： SCI

摘要： Pueraria montana var. lobata (P. lobata) is a traditional medicinal plant belonging to the Pueraria genus of Fabaceae family. Pueraria montana var. thomsonii (P. thomsonii) and Pueraria montana var. montana (P. montana) are its related species. However, evolutionary history of the Pueraria genus is still largely unknown. Here, a high-integrity, chromosome-level genome of P. lobata and an improved genome of P. thomsonii were reported. It found evidence for an ancient whole-genome triplication and a recent whole-genome duplication shared with Fabaceae in three Pueraria species. Population genomics of 121 Pueraria accessions demonstrated that P. lobata populations had substantially higher genetic diversity, and P. thomsonii was probably derived from P. lobata by domestication as a subspecies. Selection sweep analysis identified candidate genes in P. thomsonii populations associated with the synthesis of auxin and gibberellin, which potentially play a role in the expansion and starch accumulation of tubers in P. thomsonii. Overall, the findings provide new insights into the evolutionary and domestication history of the Pueraria genome and offer a valuable genomic resource for the genetic improvement of these species.