The complex genome and adaptive evolution of polyploid Chinese pepper (Zanthoxylum armatum and Zanthoxylum bungeanum)

文献类型: 外文期刊

第一作者: Hu, Lisong

作者: Hu, Lisong;Xu, Zhongping;Fan, Rui;Qin, Xiaowei;Yan, Lin;Ji, Xunzhi;Hao, Chaoyun;Wang, Qinghuang;Hu, Lisong;Fan, Rui;Qin, Xiaowei;Yan, Lin;Ji, Xunzhi;Hao, Chaoyun;Wang, Qinghuang;Hu, Lisong;Fan, Rui;Qin, Xiaowei;Yan, Lin;Ji, Xunzhi;Hao, Chaoyun;Wang, Qinghuang;Xu, Zhongping;Wang, Guanying;Wang, Fuqiu;Chen, Wei;Jin, Shuangxia;Meng, Minghui;Xu, Pan;Sim, Soonliang;Zhu, Huaguo;Zhu, Shu;Zhao, Hui;Zhao, Hui;Lindsey, Keith;Daniell, Henry;Wendel, Jonathan F.

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关键词: Chinese pepper (Zanthoxylum armatum and Zanthoxylum bungeanum); polyploid; identified subgenomes; phenotypic innovation; adaptive evolution

期刊名称:PLANT BIOTECHNOLOGY JOURNAL ( 影响因子:13.263; 五年影响因子:11.619 )

ISSN: 1467-7644

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页码:

收录情况: SCI

摘要: Zanthoxylum armatum and Zanthoxylum bungeanum, known as 'Chinese pepper', are distinguished by their extraordinary complex genomes, phenotypic innovation of adaptive evolution and species-special metabolites. Here, we report reference-grade genomes of Z. armatum and Z. bungeanum. Using high coverage sequence data and comprehensive assembly strategies, we derived 66 pseudochromosomes comprising 33 homologous phased groups of two subgenomes, including autotetraploid Z. armatum. The genomic rearrangements and two whole-genome duplications created large (similar to 4.5 Gb) complex genomes with a high ratio of repetitive sequences (>82%) and high chromosome number (2n = 4x = 132). Further analysis of the high-quality genomes shed lights on the genomic basis of involutional reproduction, allomones biosynthesis and adaptive evolution in Chinese pepper, revealing a high consistent relationship between genomic evolution, environmental factors and phenotypic innovation. Our study provides genomic resources and new insights for investigating diversification and phenotypic innovation in Chinese pepper, with broader implications for the protection of plants under severe environmental changes.

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