水生生物学报2018，Vol.42Issue(1)：106-113,8.DOI:10.7541/2018.014
赤水河半(鱼)的遗传多样性和种群历史动态分析
GENETIC DIVERSITY AND POPULATION DEMOGRAPHIC HISTORY OF HEMICULTERELLA SAUVAGEI IN THE CHISHUI RIVER
摘要
Abstract
This study investigated the genetic diversity and population demographic history of Hemiculterella sauvagei based on the sequence analysis of mtDNA (Cyt b) of 168 individuals from five geographical populations including Shuiliao, Maotai, Erhe, Taiping and Chishui. After alignment, 1137 bp sequence including 42 variable sites, 13 singleton sites, 29 parsimony informative sites and 38 haplotypes were acquired and revealed, among which Hap1, Hap2 and Hap6 were shared by all populations. The haplotype diversity (Hd) and nucleotide diversity (Pi) were 0.895±0.012 and 0.00487±0.00695, respectively. Analysis of molecular variance (AMOVA) indicated that genetic varia-tions between different geographical populations in the Chishui River were mainly within group. Genetic differentia-tion index (Fst) indicated high genetic differentiation between Chishui and Maotai, Erhe and Shuiliao population as well as medium genetic differentiation between Chishui and Taiping population. The overall mean genetic distances among five populations were between 0.004—0.006. Tajima's D and Fu's Fs neutral tests showed that historical population ex-pansion observed in Taiping, Shuiliao and Chishui population but not in Maotai and Erhe. The population expansion of Shuiliao, Taiping and Chishui appeared in 0.43 Mya, 0.40 Mya and 0.37 Mya, respectively.关键词
赤水河/半(鱼)/遗传多样性/种群历史动态/遗传分化Key words
The Chishui River/Hemiculterella sauvagei/Genetic diversity/Population historical dynamics/Genetic differentiation分类
生物科学引用本文复制引用
李文静,王环珊,刘焕章,曹文宣,王小明,于江,朱昕..赤水河半(鱼)的遗传多样性和种群历史动态分析[J].水生生物学报,2018,42(1):106-113,8.基金项目
国家自然科学基金(31400359) （31400359）
中国三峡建设管理有限公司(JGJ/0272015) （JGJ/0272015）
中国长江三峡集团公司资助项目(0799570)资助[Supported by the National Natural Science Foundation of China(No. 31400359) （0799570）
China Three Gorges Projects Development Co., Ltd (JGJ/0272015) （JGJ/0272015）
the Science and Technology Research Project of China Three Gorges Corporation (0799570)] （0799570）
