Population Genetic Structure of Liza affinis (Eastern Keelback Mullet), Reveals High Gene Flow Inferred from Microsatellite Analysis
文献类型： 外文期刊
作者： Liu, Lu 1 ; Zhang, Xiumei 2 ; Sun, Dianrong 3 ; Gao, Tianxiang 2 ; Song, Na 1 ;
作者机构： 1.Ocean Univ China, Minist Educ, Key Lab Mariculture, Qingdao 276000, Shandong, Peoples R China
2.Zhejiang Ocean Univ, Natl Engn Res Ctr Marine Aquaculture, Zhoushan 316021, Peoples R China
3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
4.Key Lab Technol Res Sustainable Utilizat Marine F, Zhoushan 316021, Peoples R China
关键词： Liza affinis; microsatellite DNA; genetic differentiation; population genetic structure
期刊名称：OCEAN SCIENCE JOURNAL （ 影响因子：1.053； 五年影响因子：1.188 ）
ISSN： 1738-5261
年卷期： 2019 年 54 卷 2 期
页码：
收录情况： SCI
摘要： The population genetic studies of marine fishes usually show complex patterns of genetic differentiation which were influenced by both historical process and contemporary gene flow. Genetic structure of eight different populations for eastern keelback mullet, Liza affinis, collected from the coast along eastern and southern China, was examined using six microsatellite loci. We found strong genetic similarities among most of the samples except the Dongguan population and most microsatellite variation was found within populations. All loci were characterized by high genetic variability with expected heterozygosities ranging from 0.871 to 0.928. The Bayesian cluster analysis of the microsatellite data detected four genetic groups with no relation to geographic areas. The bottleneck results also showed no significant values. Based on these data we postulated that complex marine currents and larval dispersal shaped the genetic structured of studied populations. The present study illustrated the importance of understanding the biological significance of genetic differentiation when using molecular data in identifying units for management and protection.
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