Echinochloa crus-galli genome analysis provides insight into its adaptation and invasiveness as a weed

文献类型： 外文期刊

第一作者： Li, Gengmi

作者： Li, Gengmi;Qian, Qian;Qiu, Jie;Ye, Chuyu;Mao, Lingfeng;Zhang, Haiqiang;Wang, Yingying;Jia, Lei;Lin, Zhangxiang;Fu, Fei;Liu, Chen;Chen, Li;Shen, Enhui;Wang, Weidi;Chu, Qinjie;Wu, Dongya;Shu, Qingyao;Fan, Longjiang;Qiu, Jie;Ye, Chuyu;Mao, Lingfeng;Zhang, Haiqiang;Wang, Yingying;Jia, Lei;Lin, Zhangxiang;Fu, Fei;Liu, Chen;Chen, Li;Shen, Enhui;Wang, Weidi;Chu, Qinjie;Wu, Dongya;Shu, Qingyao;Fan, Longjiang;Jin, Gulei;Song, Weijie;Yang, Xuefang;Kong, Chui-Hua;Peng, Qiong;Zhang, Yongfei;Zhou, Xiaomao;Wang, Lifeng;Wu, Lamei;Bai, Lianyang;Wu, Sanling;Xia, Chenyang;Zhang, Chulong;Lou, Yonggen;Zhang, Yongfei;Aoki, Daisuke;Yumoto, Emi;Yokota, Takao;Miyamoto, Koji;Yamane, Hisakazu;Okada, Kazunori;Kim, Do-Soon;Cai, Daguang;Yamaguchi, Hirofumi;Timko, Michael P.

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： 2017 年 8 卷

页码：

收录情况： SCI

摘要： Barnyardgrass (Echinochloa crus-galli) is a pernicious weed in agricultural fields worldwide. The molecular mechanisms underlying its success in the absence of human intervention are presently unknown. Here we report a draft genome sequence of the hexaploid species E. crus-galli, i.e., a 1.27 Gb assembly representing 90.7% of the predicted genome size. An extremely large repertoire of genes encoding cytochrome P450 monooxygenases and glutathione S-transferases associated with detoxification are found. Two gene clusters involved in the biosynthesis of an allelochemical 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA) and a phytoalexin momilactone A are found in the E. crus-galli genome, respectively. The allelochemical DIMBOA gene cluster is activated in response to co-cultivation with rice, while the phytoalexin momilactone A gene cluster specifically to infection by pathogenic Pyricularia oryzae. Our results provide a new understanding of the molecular mechanisms underlying the extreme adaptation of the weed.

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