Genome re-sequencing reveals the evolutionary history of peach fruit edibility

文献类型： 外文期刊

第一作者： Yu, Yang

作者： Yu, Yang;Xu, Yaoguang;Zhang, Jiewei;Ren, Fei;Tu, Xiaolong;Zhao, Jianbo;Wu, Weiying;Ma, Rongcai;Jiang, Quan;Wei, Jianhua;Xie, Hua;Yu, Yang;Xu, Yaoguang;Zhang, Jiewei;Tu, Xiaolong;Wu, Weiying;Ma, Rongcai;Wei, Jianhua;Xie, Hua;Fu, Jun;Zhao, Hongwei;Guo, Wei;Wang, Gaochao;Tian, Shilin;Zhao, Jing;Jiang, Dawei

作者机构：

期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）

ISSN： 2041-1723

年卷期： 2018 年 9 卷

页码：

收录情况： SCI

摘要： Peach (Prunus persica) is an economically important fruit crop and a well-characterized model for studying Prunus species. Here we explore the evolutionary history of peach using a large-scale SNP data set generated from 58 high-coverage genomes of cultivated peach and closely related relatives, including 44 newly re-sequenced accessions and 14 accessions from a previous study. Our analyses suggest that peach originated about 2.47 Mya in southwest China in glacial refugia generated by the uplift of the Tibetan plateau. Our exploration of genomic selection signatures and demographic history supports the hypothesis that frugivore-mediated selection occurred several million years before the eventual human-mediated domestication of peach. We also identify a large set of SNPs and/or CNVs, and candidate genes associated with fruit texture, taste, size, and skin color, with implications for genomic-selection breeding in peach. Collectively, this study provides valuable information for understanding the evolution and domestication of perennial fruit tree crops.

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