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Genomic insights into adaptation to heterogeneous environments for the ancient relictualCircaeaster agrestis(Circaeasteraceae, Ranunculales)

文献类型：期刊论文

作者Zhang, Xu1,2,3; Sun, Yanxia1,2; Landis, Jacob B.4,5,6; Zhang, Jianwen7; Yang, Linsen8; Lin, Nan1,2,3; Zhang, Huajie1,2; Guo, Rui1,2,3; Li, Lijuan1,2,3; Zhang, Yonghong7
刊名NEW PHYTOLOGIST
出版日期2020-06-20
页码17
关键词Circaeaster agrestis conservation environmental heterogeneity genetic structure local adaptation restriction site-associated DNA sequencing (RAD-seq) temperature variables
ISSN号0028-646X
DOI10.1111/nph.16669
英文摘要Investigating the interaction between environmental heterogeneity and local adaptation is critical for understanding the evolutionary history of a species, providing the premise for studying the response of organisms to rapid climate change. However, for most species how exactly the spatial heterogeneity promotes population divergence and how genomic variations contribute to adaptive evolution remain poorly understood. We examine the contributions of geographical and environmental variables to population divergence of the relictual, alpine herbCircaeaster agrestis, as well as the genetic basis of local adaptation using RAD-seq and plastome data. We detected significant genetic structure with an extraordinary disequilibrium of genetic diversity among regions, and signals of isolation-by-distance along with isolation-by-resistance. The populations were estimated to begin diverging in the late Miocene, along with a possible ancestral distribution of the Hengduan Mountains and adjacent regions. Both environmental gradient and redundancy analyses revealed significant association between genetic variation and temperature variables. Genome-environment association analyses identified 16 putatively adaptive loci related mainly to biotic and abiotic stress resistance. Our genome-wide data provide new insights into the important role of environmental heterogeneity in shaping genetic structure, and access the footprints of local adaptation in an ancient relictual species, informing future conservation efforts.
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA20050203] ; Programme Foundation for the Backbone of Scientific Research by Wuhan Botanical Garden, Chinese Academy of Sciences[Y855241G01] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0502] ; Major Program of National Natural Science Foundation of China[31590823] ; National Key R&D Program of China[2017YFC0505200]
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000541269700001
出版者WILEY
源URL[http://202.127.146.157/handle/2RYDP1HH/15378]  
专题中国科学院武汉植物园
通讯作者Sun, Yanxia; Sun, Hang; Wang, Hengchang
作者单位1.Chinese Acad Sci, Ctr Conservat Biol, Core Bot Gardens, Wuhan 430074, Hubei, Peoples R China
2.Chinese Acad Sci, CAS Key Lab Plant Germpiasm Enhancement & Special, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92507 USA
5.Cornell Univ, Sch Integrat Plant Sci, Sect Plant Biol, Ithaca, NY 14850 USA
6.Cornell Univ, LH Bailey Hortorium, Ithaca, NY 14850 USA
7.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
8.Adm Shennongjia Natl Pk, Hubei Key Lab Shennongjia Golden Monkey Conservat, Shennongjia 442400, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xu,Sun, Yanxia,Landis, Jacob B.,et al. Genomic insights into adaptation to heterogeneous environments for the ancient relictualCircaeaster agrestis(Circaeasteraceae, Ranunculales)[J]. NEW PHYTOLOGIST,2020:17.
APA Zhang, Xu.,Sun, Yanxia.,Landis, Jacob B..,Zhang, Jianwen.,Yang, Linsen.,...&Wang, Hengchang.(2020).Genomic insights into adaptation to heterogeneous environments for the ancient relictualCircaeaster agrestis(Circaeasteraceae, Ranunculales).NEW PHYTOLOGIST,17.
MLA Zhang, Xu,et al."Genomic insights into adaptation to heterogeneous environments for the ancient relictualCircaeaster agrestis(Circaeasteraceae, Ranunculales)".NEW PHYTOLOGIST (2020):17.

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来源：武汉植物园

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