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Genetic diversity and population structure of the roughskin sculpin (Trachidermus fasciatus Heckel) inferred from microsatellite analyses: implications for its conservation and management
Li, Yu-Long1; Xue, Dong-Xiu1; Gao, Tian-Xiang3; Liu, Jin-Xian1,2,4
2016-08-01
Source PublicationCONSERVATION GENETICS
Volume17Issue:4Pages:921-930
SubtypeArticle
AbstractIdentification of population units is crucial for management and monitoring programs, especially for endangered wild species. The roughskin sculpin (Trachidermus fasciatus Heckel) is a small catadromous fish and has been listed as a second class state protected aquatic animal since 1988 in China. To achieve sustainable conservation of this species, it is necessary to clarify the existing genetic structure both between and within populations. Here, population genetic structure among eight populations of T. fasciatus were analyzed by using 16 highly polymorphic microsatellites. High levels of genetic variation were observed in all populations. All pairwise F (ST) estimates were significant after false discovery rate correction (overall average F (ST) = 0.054). Furthermore, both STRUCTURE and discriminant analysis of principal components (DAPC) analysis showed that the eight populations were grouped into six clusters. BAYESASS analysis showed generally low recent and asymmetric migration among populations. All these results suggested significant genetic structure across populations. However, there was no isolation by distance relationship among populations, likely resulting from barriers to gene flow created by habitat fragmentation. Our results highlight the need for in situ conservation efforts for T. fasciatus across its entire distribution range, through maximizing habitat size and quality to preserve overall genetic diversity and evolutionary potential.
KeywordTrachidermus Fasciatus Heckel Habitat Fragmentation Microsatellite Population Structure Genetic Diversity
DOI10.1007/s10592-016-0832-7
Indexed BySCI
Language英语
WOS IDWOS:000379220500014
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/130962
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China
3.Zhejiang Ocean Univ, Sch Fisheries, 1 Haida South Rd, Zhoushan 316022, Zhejiang, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Yu-Long,Xue, Dong-Xiu,Gao, Tian-Xiang,et al. Genetic diversity and population structure of the roughskin sculpin (Trachidermus fasciatus Heckel) inferred from microsatellite analyses: implications for its conservation and management[J]. CONSERVATION GENETICS,2016,17(4):921-930.
APA Li, Yu-Long,Xue, Dong-Xiu,Gao, Tian-Xiang,&Liu, Jin-Xian.(2016).Genetic diversity and population structure of the roughskin sculpin (Trachidermus fasciatus Heckel) inferred from microsatellite analyses: implications for its conservation and management.CONSERVATION GENETICS,17(4),921-930.
MLA Li, Yu-Long,et al."Genetic diversity and population structure of the roughskin sculpin (Trachidermus fasciatus Heckel) inferred from microsatellite analyses: implications for its conservation and management".CONSERVATION GENETICS 17.4(2016):921-930.
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