Genetic diversity and population structure of black sea bream (Acanthopagrus schlegelii) based on mitochondrial control region sequences: the genetic effect of stock enhancement
文献类型： 外文期刊
作者： Shan, Binbin 1 ; Liu, Yan 1 ; Song, Na 4 ; Ji, Dongping 5 ; Yang, Changping 1 ; Zhao, Yu 1 ; Gao, Tianxiang 6 ; Sun, Dian 1 ;
作者机构： 1.Minist Agr Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Peoples R China
2.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China
3.Chinese Acad Fisheries Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China
4.Ocean Univ China, Fishery Coll, Qingdao 266003, Shandong, Peoples R China
5.Fangchengang Agr & Rural Bur, Agr Machinery Serv Ctr, Fangchengang 538001, Guangxi, Peoples R China
6.Zhejiang Ocean Univ, Fishery Coll, Zhoushan 316022, Zhejiang, Peoples R China
关键词： Acanthopagrus schlegelii; Stock enhancement; Genetic effect; Mitochondrial DNA; Control region sequences
期刊名称：REGIONAL STUDIES IN MARINE SCIENCE （ 影响因子：1.624； 五年影响因子：1.962 ）
ISSN： 2352-4855
年卷期： 2020 年 35 卷
页码：
收录情况： SCI
摘要： The black sea bream, Acanthopagrus schlegelii (Bleeker, 1854), has a great commercial value and a long history of stock enhancement in most coastal cities in China. The stock enhancement programs made significant achievements and contributions in increasing fishery yield, but few information was reported regarding the genetic effects on the wild population resulting from the releasing. In order to elucidate the potential genetic effects associated with stock enhancement releases, sequence variation based on the mitochondrial control region was investigated to characterize the genetic resources of black sea bream in Pearl River Estuary. The results showed that the broodfish and hatchery-released fish were characterized by lower genetic diversity indices compared with wild populations. In addition, after releasing, the genetic diversity was lower in the samples of Pearl River Estuary than other wild populations. The results of pair-wise FsT value and AMOVA revealed low genetic differentiation among hatchery populations, samples in Pearl River Estuary and wide populations nearby the stock areas, which was consistent with the previous study. Hence, the black sea bream stock enhancement may have affected the genetic diversity of wild populations in Pearl River Estuary. In further stock enhancement of A. schlegelii, it is necessary to routinely monitor the genetic effects of stock releasing and improve the genetic management. (C) 2020 Published by Elsevier B.V.
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