IOCAS-IR  > 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-Xian1,2,3
2019-07-01
Source PublicationGENOME BIOLOGY AND EVOLUTION
ISSN1759-6653
Volume11Issue:7Pages:1751-1764
Corresponding AuthorLiu, Jin-Xian(jinxianliu@gmail.com)
AbstractUnderstanding 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.
Keywordpopulation structure local adaptation Trachidermus fasciatus habitat fragmentation RAD-seq
DOI10.1093/gbe/evz118
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaEvolutionary Biology ; Genetics & Heredity
WOS SubjectEvolutionary Biology ; Genetics & Heredity
WOS IDWOS:000484039500005
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/162823
Collection海洋生态与环境科学重点实验室
Corresponding AuthorLiu, Jin-Xian
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm 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, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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