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Tracing the evolutionary and genetic footprints of atmospheric tillandsioids transition from land to air

文献类型： 外文期刊

作者： Lyu, Xiaolong 1 ; Li, Ping 2 ; Jin, Liang 3 ; Yang, Feng 4 ; Pucker, Boas 6 ; Wang, Chenhao 1 ; Liu, Linye 1 ; Zhao, Meng 1 ; Shi, Lu 1 ; Zhang, Yutong 1 ; Yang, Qinrong 1 ; Xu, Kuangtian 1 ; Li, Xiao 1 ; Hu, Zhongyuan 1 ; Yang, Jinghua 1 ; Yu, Jingquan 1 ; Zhang, Mingfang 1 ;

作者机构： 1.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 310058, Peoples R China

2.Shanghai Chenshan Bot Garden, CN-201602 Shanghai, Peoples R China

3.Zhejiang Acad Agr Sci, Zhejiang Inst Landscape Plants & Flowers, Hangzhou 311251, Peoples R China

4.BGI Sanya, Sanya 572025, Peoples R China

5.BGI Shenzhen, State Key Lab Agr Genom, Shenzhen, Guangdong, Peoples R China

6.TU Braunschweig, Inst Plant Biol, Mendelssohns Str 4, D-38106 Braunschweig, Germany

7.Zhejiang Univ, Hainan Inst, Sanya 572025, Peoples R China

期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）

ISSN：

年卷期： 2024 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Plant evolution is driven by key innovations of functional traits that enables their survivals in diverse ecological environments. However, plant adaptive evolution from land to atmospheric niches remains poorly understood. In this study, we use the epiphytic Tillandsioideae subfamily of Bromeliaceae as model plants to explore their origin, evolution and diversification. We provide a comprehensive phylogenetic tree based on nuclear transcriptomic sequences, indicating that core tillandsioids originated approximately 11.3 million years ago in the Andes. The geological uplift of the Andes drives the divergence of tillandsioids into tank-forming and atmospheric types. Our genomic and transcriptomic analyses reveal gene variations and losses associated with adaptive traits such as impounding tanks and absorptive trichomes. Furthermore, we uncover specific nitrogen-fixing bacterial communities in the phyllosphere of tillandsioids as potential source of nitrogen acquisition. Collectively, our study provides integrative multi-omics insights into the adaptive evolution of tillandsioids in response to elevated aerial habitats. The mechanisms by which tillandsioids adapt to elevated aerial habitats remain largely unexplored. Here, the authors report their evolution and link life history, diversification, comparative genomic, and functional changes to processes underlying the unique biology of air plants.

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