Continuous genetic adaptation to high elevations of alpine bamboos in the Hengduan Mountains,Southwest China

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外文摘要：Many examples of phenotypic modifications resulting from high-elevation adaptation have been documented,however,the underlying processes responsible for these modifications and whether the continuity of the adaptation process remain elusive,particularly in plants.The alpine plants distributed along wide elevational gradients provide an ideal system to address this question.Here,we collected transcriptomes from multiple tissues of three species with different elevations(～1500,～2500,and～3600 m in the Hengduan Mountains,Southwest China)in two genera Fargesia and Yushania of alpine bamboos,respectively,and conducted evolutionary and expressional analyses.Results showed that high-elevation adaptation emerged earlier in the evolutionary history of both genera and evolved continuously as the elevation increased.Moreover,convergence of genetic changes was observed in the two genera,with amounts of candidate genes responsible for high-elevation adaptation identified under positive selection.Overall,our study provides an empirical example and valuable genetic resource for further investigation of high-elevation adaptation in plants and sheds new light on how plants adapting to high-elevation environments in a biodiversity hotspot.

外文关键词：

alpine bambooscontinuum evolutionHengduan Mountainshigh-elevation adaptationtranscriptome

作者：

Li-Ying Luo、Gui-Hua Jin、Peng-Fei Ma、De-Zhu Li

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作者单位：

Germplasm Bank of Wild Species,and Yunnan Key Laboratory of Crop Wild Relatives Omics,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,Yunnan,China

University of Chinese Academy of Sciences,Beijing 100049,China

基金：

中国科学院战略规划重点项目国家自然科学基金国家自然科学基金Reserve Talents for Academic and Technical Leaders of Middleaged and Young People in Yunnan ProvinceTen Thousand Talent Program of Yunnan Province

项目编号：

XDB310000003212010300331970355202105AC160022YNWR-QNBJ-2020-297

出版年：

2024

DOI：

10.1111/jse.13038

植物分类学报

中国科学院植物研究所　中国植物学会

植物分类学报

CSTPCD

影响因子：0.322

ISSN：1674-4918

年,卷(期)：2024.62(4)

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