Origin and evolution of the triploid cultivated banana genome

文献类型: 外文期刊

第一作者: Li, Xiuxiu

作者: Li, Xiuxiu;Yun, Yingzi;Jiang, Mengwei;Chen, Xuequn;Li, Hua;Zhu, Wenjun;Xu, Shiyao;Xu, Yanbing;Wang, Xianjun;Zhang, Chen;Lue, Peitao;Yu, Sheng;Cheng, Zhihao;Wu, Qiong;Chang, Xiaojun;Wen, Xiaohui;Hu, Jin;Zhang, Liangsheng;Wen, Xiaohui;Hu, Jin;Zhang, Liangsheng;Zhang, Chen;Wang, Zonghua;Lin, Zhenguo;Aury, Jean-Marc;van de Peer, Yves;van de Peer, Yves;van de Peer, Yves;van de Peer, Yves;Zhou, Xiaofan;Wang, Jihua

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 1 期

页码:

收录情况: SCI

摘要: Most fresh bananas belong to the Cavendish and Gros Michel subgroups. Here, we report chromosome-scale genome assemblies of Cavendish (1.48 Gb) and Gros Michel (1.33 Gb), defining three subgenomes, Ban, Dh and Ze, with Musa acuminata ssp. banksii, malaccensis and zebrina as their major ancestral contributors, respectively. The insertion of repeat sequences in the Fusarium oxysporum f. sp. cubense (Foc) tropical race 4 RGA2 (resistance gene analog 2) promoter was identified in most diploid and triploid bananas. We found that the receptor-like protein (RLP) locus, including Foc race 1-resistant genes, is absent in the Gros Michel Ze subgenome. We identified two NAP (NAC-like, activated by apetala3/pistillata) transcription factor homologs specifically and highly expressed in fruit that directly bind to the promoters of many fruit ripening genes and may be key regulators of fruit ripening. Our genome data should facilitate the breeding and super-domestication of bananas. Chromosome-scale genome assemblies of triploid Cavendish and Gros Michel reveal the banana cultivars' origins, disease resistance and fruit ripening mechanism.

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