江汉大学学报（自然科学版）2025，Vol.53Issue(5)：23-33,11.DOI:10.16389/j.cnki.cn42-1737/n.2025.05.003
汉阳地区四个湖泊短颌鲚群体的遗传结构
Genetic Structure of Coilia brachygnathus Populations from Four Lakes in the Hanyang Area
摘要
Abstract
To understand the genetic diversity of Coilia brachygnathus(C.brachygnathus)populations,a dominant fish species in the lakes of the Hanyang area,we analyzed genetic diversity,interpopulation differentiation,and historical population dynamics of four C.brachygnathus populations from the Sanjiao Lake,the Nantaizi Lake,the Longyang Lake,and the Houguan Lake.Mitochondrial Cyt b gene and D-loop sequences were employed as molecular markers.The results revealed high genetic diversity in C.brachygnathus populations from the four lakes,with haplotype diversity ranging from 0.613 to 0.868(Cyt b)and 0.842 to 0.929(D-loop),and nucleotide diversity was 0.002 23-0.002 63(Cyt b)and 0.004 90-0.007 51(D-loop),all of which were at relatively high levels.Pairwise fixation index(FST)values suggested some genetic differentiation between the Longyang Lake population and other populations.Principal components analysis(PCA)and haplotype network analyses demonstrated a distinct phylogeographic structure among populations from the lakes in the Hanyang area.Neutrality tests and mismatch analysis indicated no historical population expansion events in C.brachygnathus populations from the lakes in the Hanyang area.关键词
短颌鲚/遗传多样性/遗传结构/汉阳地区湖泊Key words
Coilia brachygnathus/genetic diversity/genetic structure/lakes in Hanyang area分类
生物科学引用本文复制引用
王东,何天琪,任静,陈元元,翟东东,刘红艳,熊飞..汉阳地区四个湖泊短颌鲚群体的遗传结构[J].江汉大学学报（自然科学版）,2025,53(5):23-33,11.基金项目
湖北省高等学校优秀中青年科技创新团队计划项目(T2020034) （T2020034）
江汉大学校级科研项目科技类专项(2023KJZX41) （2023KJZX41）
湖北省大学生创新创业训练计划项目(S202311072039) （S202311072039）
