Analysis of Genetic Diversity in Coilia nasus Based on 2b-RAD Simplified Genome Sequencing
文献类型： 外文期刊
作者： Li, Yu 1 ; Chen, Jianhua 2 ; Feng, Guangpeng 1 ; Wang, Qingyun 5 ; Xia, Rulong 5 ; Song, Chao 1 ; Wang, Haihua 4 ; Zhang, Yanping 4 ;
作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
2.Jiangsu Ocean Univ, Coll Marine Sci & Fisheries, Jiangsu Key Lab Marine Biotechnol, Lianyungang 222005, Peoples R China
3.Jiangsu Zhongyang Grp Co Ltd, Nantong 226600, Peoples R China
4.Jiangxi Inst Fisheries Sci, Poyang Lake Fisheries Res Ctr Jiangxi Prov, Nanchang 330039, Peoples R China
5.Wuhan Acad Agr Sci, Fisheries Res Inst, Wuhan 430207, Peoples R China
关键词： Coilia nasus; SNP; genetic diversity; 2b-RAD
期刊名称：WATER （ 影响因子：3.4； 五年影响因子：3.5 ）
ISSN：
年卷期： 2023 年 15 卷 6 期
页码：
收录情况： SCI
摘要： In the protection of migratory species, Coilia nasus has always been a research topic of very high interest in various countries because of the high economic value and the serious decline of resources. In this study, C. nasus were collected from the Shengsi Sea area, the Yangtze River estuary, the Taizhou section of the Yangtze River and Poyang Lake. By using 2b-RAD simplified genome sequencing technology, 63,110 SNP sites were screened, and the genetic diversity of each population was analyzed with SNP markers. The results showed that (1) the genetic purity of the four groups of populations was not high, with the need to further increase levels of genetic purity; (2) the genetic diversity in the four populations was high, indicating that they had strong adaptability to environmental changes and could easily expand their distribution and resource growth; (3) the F-ST values (0.112-0.142) of the four populations were higher, indicating that there was moderate genetic differentiation, but no independent population was formed. This study speculated that these migratory species may have the same spawning grounds and pointed out that the gene purity of C. nasus may have been polluted, and it is urgent to improve the purity in the protection of migratory C. nasus.
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