Mikania micrantha genome provides insights into the molecular mechanism of rapid growth

Bo Liu, Jian Yan, Weihua Li, Lijuan Yin, Ping Li, Hanxia Yu, Longsheng Xing, Minling Cai, Hengchao Wang, Mengxin Zhao, Jin Zheng, Feng Sun, Zhenzhen Wang, Zhaoyang Jiang, Qiaojing Ou, Shubin Li, Lu Qu, Qilei Zhang, Yaping Zheng, Xi Qiao, Yu Xi, Yan Zhang, Fan Jiang, Cong Huang, Conghui Liu, Yuwei Ren, Sen Wang, Hangwei Liu, Jianyang Guo, Haihong Wang, Hui Dong, Changlian Peng (), Wanqiang Qian (), Wei Fan () and Fanghao Wan ()
Additional contact information
Bo Liu: Chinese Academy of Agricultural Sciences
Jian Yan: South China Agricultural University
Weihua Li: South China Normal University
Lijuan Yin: Chinese Academy of Agricultural Sciences
Ping Li: South China Agricultural University
Hanxia Yu: South China Normal University
Longsheng Xing: Chinese Academy of Agricultural Sciences
Minling Cai: South China Normal University
Hengchao Wang: Chinese Academy of Agricultural Sciences
Mengxin Zhao: Chinese Academy of Agricultural Sciences
Jin Zheng: South China Normal University
Feng Sun: South China Normal University
Zhenzhen Wang: South China Agricultural University
Zhaoyang Jiang: South China Normal University
Qiaojing Ou: South China Normal University
Shubin Li: South China Normal University
Lu Qu: South China Normal University
Qilei Zhang: South China Normal University
Yaping Zheng: South China Normal University
Xi Qiao: Chinese Academy of Agricultural Sciences
Yu Xi: Chinese Academy of Agricultural Sciences
Yan Zhang: Chinese Academy of Agricultural Sciences
Fan Jiang: Chinese Academy of Agricultural Sciences
Cong Huang: Chinese Academy of Agricultural Sciences
Conghui Liu: Chinese Academy of Agricultural Sciences
Yuwei Ren: Chinese Academy of Agricultural Sciences
Sen Wang: Chinese Academy of Agricultural Sciences
Hangwei Liu: Chinese Academy of Agricultural Sciences
Jianyang Guo: Chinese Academy of Agricultural Sciences
Haihong Wang: South China Agricultural University
Hui Dong: Shenzhen and Chinese Academy of Sciences
Changlian Peng: South China Normal University
Wanqiang Qian: Chinese Academy of Agricultural Sciences
Wei Fan: Chinese Academy of Agricultural Sciences
Fanghao Wan: Chinese Academy of Agricultural Sciences

Nature Communications, 2020, vol. 11, issue 1, 1-13

Abstract: Abstract Mikania micrantha is one of the top 100 worst invasive species that can cause serious damage to natural ecosystems and substantial economic losses. Here, we present its 1.79 Gb chromosome-scale reference genome. Half of the genome is composed of long terminal repeat retrotransposons, 80% of which have been derived from a significant expansion in the past one million years. We identify a whole genome duplication event and recent segmental duplications, which may be responsible for its rapid environmental adaptation. Additionally, we show that M. micrantha achieves higher photosynthetic capacity by CO2 absorption at night to supplement the carbon fixation during the day, as well as enhanced stem photosynthesis efficiency. Furthermore, the metabolites of M. micrantha can increase the availability of nitrogen by enriching the microbes that participate in nitrogen cycling pathways. These findings collectively provide insights into the rapid growth and invasive adaptation.

Date: 2020
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DOI: 10.1038/s41467-019-13926-4

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