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当前位置: 首页 > 文章 > 不同地理种群黄胫小车蝗的遗传多样性及遗传分化研究 沈阳农业大学学报 2013,44 (6) 748-753
Position: Home > Articles > Genetic Diversity and Genetic Differentiation among Different Geographic Populations of Oedaleus infernalis Saussure(Orthoptera:Acridoidea) Journal of Shenyang Agricultural University 2013,44 (6) 748-753

不同地理种群黄胫小车蝗的遗传多样性及遗传分化研究

作  者：
孙嵬;张柱亭;类成平;董辉;钱海涛;丛斌
单  位：
沈阳农业大学植物保护学院
关键词：
黄胫小车蝗;Cytb基因;地理种群;遗传多样性;遗传分化
摘  要：
应用线粒体细胞色素b(Cytb)基因序列对10个地理种群黄胫小车蝗(Oedaleus infernalis Saussure)的遗传多样性及遗传分化进行了初步研究。结果表明:在获得的168条序列样本中,共发现了14个变异位点,定义了15种单倍型。总单倍型多样性指数Hd为0.462,种群内单倍型多样度在0.125~0.625范围之内。总群体的Fst为0.0812,Gst为0.0991,Nm为4.55,表明黄胫小车蝗各地理种群之间存在着较为充分的基因交流。分子方差分析(AMOVA)结果表明,黄胫小车蝗的遗传差异主要发生在种群内部,占方差比率的91.53%。单倍型中介网络图及系统树显示,各种群中的单倍型分布混杂,没有形成明显的地理格局。
译  名：
Genetic Diversity and Genetic Differentiation among Different Geographic Populations of Oedaleus infernalis Saussure(Orthoptera:Acridoidea)
作  者：
SUN Wei;ZHANG Zhu-ting;LEI Cheng-ping;DONG Hui;QIAN Hai-tao;CONG Bin;College of Plant Protection, Shenyang Agricultural University;
关键词：
Oedaleus infernalis;;Cytb gene;;geographic population;;genetic diversity;;genetic differentiation
摘  要：
The mitochondrial Cytb gene was used to investigate genetic diversity and genetic differentiation among 10 geographic populations of Oedaleus infernalis Saussure. In the total 168 tested sequences, 14 variable sites and 15 haplotypes were observed. The mean haplotype diversity of all populations was 0.462 and the value within populations ranged from 0.125 to0.625. The overall Fst was 0.0812, Gst was 0.0991 and Nm was 4.55. These results suggested that gene flow between different geographic populations was sufficient. The results of AMOVA suggested that the genetic variation mainly occurred within populations(91.53%). The median-joining network and phylogenetic tree of haplotypes revealed no obvious geographical pattern for the haplotypes distributed in mixed structure.

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