文章摘要
李先仁,李思发,唐首杰,蔡完其.尼罗罗非鱼8个养殖群体遗传差异的微卫星分析[J].上海海洋大学学报,2009,(1):.
LI Xian-ren,LI Si-fa,TANG Shou-jie,CAI Wan-qi.Genetic diversity in eight farmed Nile tilapia populations (Oreochromis niloticus) by microsatellite markers[J].Journal of Shanghai Ocean University,2009,(1):.
尼罗罗非鱼8个养殖群体遗传差异的微卫星分析
Genetic diversity in eight farmed Nile tilapia populations (Oreochromis niloticus) by microsatellite markers
  
DOI:
中文关键词: 尼罗罗非鱼  微卫星  遗传差异
英文关键词: Oreochromis niloticus  microsatellite  genetic diversity  
基金项目:国家"十五"攻关项目
作者单位
李先仁,李思发,唐首杰,蔡完其  
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中文摘要:
      利用18对微卫星引物对尼罗罗非鱼(Oreochromis niloticus)国内外8个养殖群体进行遗传差异分析.结果表明:(1)8个群体的平均等位基因数(Na)为3.61~5.11,平均有效等位基因数(Ne)为2.81~3.76,平均观察杂合度(Ho)为0.861 1~0.925 0,平均期望杂合度(He)为0.603 9~0.697 7,平均多态信息含量(PIC)为0.522 9~0.637 3.表明这8个养殖群体具有丰富的遗传变异.(2)在对8个群体的遗传距离和遗传相似度进行估算基础上所作聚类分析表明, 8个群体分为两大支,3个"吉富"群体明显聚为一支,其他5个群体聚为一支, 反映了这8个群体的亲缘关系.(3)微卫星引物UNH187可以初步作为区分"新吉富"尼罗罗非鱼和其他尼罗罗非鱼群体的特异性标记.
英文摘要:
      To access Nile tilapia's genetic diversity,158 samples of eight farmed Nile tilapia populations were amplified by eighteen pairs of microsatellite primers.The result shows that:(1) In all eight populations the value of average allele number(Na) was 3.61-5.11,the value of average of effective number of alleles(Ne) was 2.81-3.76;the value of average observed heterozygosity(Ho) was 0.861 1-0.925 0,the value of average expected heterozygosity(He) was 0.603 9-0.697 7 and the value of average polymorphism informa...
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