Population Genomic Signatures of Genetic Structure and Environmental Selection in the Catadromous Roughskin Sculpin Trachidermus fasciatus

doi:10.1093/gbe/evz118

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Population Genomic Signatures of Genetic Structure and Environmental Selection in the Catadromous Roughskin Sculpin Trachidermus fasciatus
	Li, Yu-Long1,2,3 ; Xue, Dong-Xiu1,2,3 ; Zhang, Bai-Dong1,2,3 ; Liu, Jin-Xian 1,2,3
刊名	GENOME BIOLOGY AND EVOLUTION
	2019-07-01
卷号	11 期号:7 页码:1751-1764
关键词	population structure local adaptation Trachidermus fasciatus habitat fragmentation RAD-seq
ISSN号	1759-6653
DOI	10.1093/gbe/evz118
通讯作者	Liu, Jin-Xian(jinxianliu@gmail.com)
英文摘要	Understanding the patterns of genetic diversity and adaptation across species' range is crucial to assess its long-term persistence and determine appropriate conservation measures. The impacts of human activities on the genetic diversity and genetic adaptation to heterogeneous environments remain poorly understood in the marine realm. The roughskin sculpin (Trachidermus fasciatus) is a small catadromous fish, and has been listed as a second-class state protected aquatic animal since 1988 in China. To elucidate the underlying mechanism of population genetic structuring and genetic adaptations to local environments, RAD tags were sequenced for 202 individuals in nine populations across the range of T. fasciatus in China. The pairwise FST values over 9,271 filtered SNPs were significant except that between Dongying and Weifang. All the genetic clustering analysis revealed significant population structure with high support for eight distinct genetic clusters. Both the minor allele frequency spectra and Ne estimations suggested extremely small Ne in some populations (e.g., Qinhuangdao, Rongcheng, Wendeng, and Qingdao), which might result from recent population bottleneck. The strong genetic structure can be partly attributed to genetic drift and habitat fragmentation, likely due to the anthropogenic activities. Annotations of candidate adaptive loci suggested that genes involved in metabolism, development, and osmoregulation were critical for adaptation to spatially heterogenous environment of local populations. In the context of anthropogenic activities and environmental change, results of the present population genomic work provided important contributions to the understanding of genetic differentiation and adaptation to changing environments.
资助项目	National Natural Science Foundation of China[31502169] ; National Natural Science Foundation of China[41676137] ; NSFC-Shandong Joint Fund for Marine Ecology and Environmental Sciences[U1606404] ; AoShan Talents Program ; Qingdao National Laboratory of Marine Science and Technology[2015ASTP-ES05]
WOS研究方向	Evolutionary Biology ; Genetics & Heredity
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000484039500005
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/162822]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Liu, Jin-Xian
作者单位	1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Li, Yu-Long,Xue, Dong-Xiu,Zhang, Bai-Dong,et al. Population Genomic Signatures of Genetic Structure and Environmental Selection in the Catadromous Roughskin Sculpin Trachidermus fasciatus[J]. GENOME BIOLOGY AND EVOLUTION,2019,11(7):1751-1764.
APA	Li, Yu-Long,Xue, Dong-Xiu,Zhang, Bai-Dong,&Liu, Jin-Xian.(2019).Population Genomic Signatures of Genetic Structure and Environmental Selection in the Catadromous Roughskin Sculpin Trachidermus fasciatus.GENOME BIOLOGY AND EVOLUTION,11(7),1751-1764.
MLA	Li, Yu-Long,et al."Population Genomic Signatures of Genetic Structure and Environmental Selection in the Catadromous Roughskin Sculpin Trachidermus fasciatus".GENOME BIOLOGY AND EVOLUTION 11.7(2019):1751-1764.