The Gastrodia elata genome provides insights into plant adaptation to heterotrophy

文献类型： 外文期刊

第一作者： Yuan, Yuan

作者： Yuan, Yuan;Liu, Juan;Zhou, Junhui;Wang, Xin;Lai, Changjiangsheng;Huang, Jingwen;Meng, Hubiao;Liang, Yuting;Jiang, Chao;Zhao, Yuyang;Nan, Tiegui;Jin, Yan;Zhan, Zhilai;Yang, Jian;Huang, Luqi;Jin, Xiaohua;Wang, Deyi;Ma, Xiao;Zhao, Xing;Xu, Wei;Zhou, Menyan;Jiang, Zhi;Li, Ruiqiang;Jiang, Wenkai;Zha, Liangping;Peng, Huasheng;Liu, Dahui;Wang, Li

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： We present the 1.06 Gb sequenced genome of Gastrodia elata, an obligate mycoheterotrophic plant, which contains 18,969 protein-coding genes. Many genes conserved in other plant species have been deleted from the G. elata genome, including most of those for photosynthesis. Additional evidence of the influence of genome plasticity in the adaptation of this mycoheterotrophic lifestyle is evident in the large number of gene families that are expanded in G. elata, including glycoside hydrolases and urease that likely facilitate the digestion of hyphae are expanded, as are genes associated with strigolactone signaling, and ATPases that may contribute to the atypical energy metabolism. We also find that the plastid genome of G. elata is markedly smaller than that of green plant species while its mitochondrial genome is one of the largest observed to date. Our report establishes a foundation for studying adaptation to a mycoheterotrophic lifestyle.

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