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当前位置: 首页 > 文章 > 红鳍东方鲀两个群体的遗传结构及与经济性状的相关性分析 淡水渔业 2011,41 (5) 11-18
Position: Home > Articles > Genetic analysis of two Takifugu rubripes populations and correlation of microsatellite markers and economic traits Freshwater Fisheries 2011,41 (5) 11-18

红鳍东方鲀两个群体的遗传结构及与经济性状的相关性分析

作  者：
万玉美;王蕾;谭照君;赵海涛;李恒德;孙效文
单  位：
大连海洋大学生命科学与技术学院;河北省水产研究所;中国水产科学研究院水产生物应用基因组研究中心
关键词：
红鳍东方鲀(Takifugu rubripes);微卫星;遗传结构;经济性状;相关性分析
摘  要：
本文利用21对多态性微卫星标记对河北省红鳍东方鲀(Takifugu rubripes)良种场引进的日本群体和选育的秦皇岛群体进行了遗传结构分析。日本与秦皇岛两个群体的有效等位基因数分别为3.3697和2.8593,期望杂合度分别是0.6516和0.6073,多态信息含量分别是0.6009和0.5509。研究结果表明这两个群体遗传多样性较高,多态信息含量丰富,具有较大的遗传改良和育种潜力。同时,本文通过对21个微卫星座位与日本群体的体长、体重和体高三个经济性状进行最小二乘方差分析,得到6个与经济性状显著相关的微卫星标记,f161、f273与体重显著相关(P<0.05),f170、f501与体长显著相关(P<0.05),而f53、f331与体高显著相关(P<0.05)。对同一标记不同基因型间进行多重比较,找到与4种性状相关的基因型。
译  名：
Genetic analysis of two Takifugu rubripes populations and correlation of microsatellite markers and economic traits
作  者：
WAN Yu-mei1,2,WANG Lei1,3,TAN Zhao-jun1,3,ZHAO Hai-tao4,LI Heng-de2, SUN Xiao-wen 2,3(1.Life Science and Technology Institute,Dalian Fisheries University,Dalian,Liaoning 116023; 2.The Centre for Applied Aquatic Genomics,Chinese Academy of Fishery Sciences,Beijing 100141; 3.Heilongjiang Fisheries Research Institute,Chinese Academy of Fishery Sciences and Key and Open Laboratory of Northern Fin Fish Bioengeering Breeding Certificated by the Ministry of Agriculture,Harbin 150070; 4.Fisheries Research Institute of Hebei Province,Qinghuangdao,Hebei 066000)
关键词：
Takifugu rubripes;microsatellite;genetic structure;economic traits;correlation
摘  要：
Twenty-one microsatellite markers were selected to investigate the genetic diversity of two Takifugu rubripes Populations from T.rubripes Quality Fish Farm(Japanese Population and Qinhuangdao Population).The number of effective alleles(Ne) of two populations were 3.3697,2.8593,respectively,the value of expected heterozygosity(He) on two populations were 0.6516,0.6073,respectively and the mean polymorphism information content(PIC) were 0.6009 and 0.5509,respectively.The results suggest that two populations were on high level of genetic diversity,providing useful information for genetic improvement and selective breeding.Linkage analysis has been conducted with the genotypes of 21 microsatellite loci and body weight,body length and body height of 96 individuals from Japanese population,suggesting that maker f161 and f273 had a significant impact on body weight(P<0.05),maker f170 and f501 had a significant correlation of body length(P<0.05) and maker f53 and f331 had a significant impact on body height(P<0.05).In addition,four genotypes of these correlative markers were determined.

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