摘要
对 7个陆地棉分子标记辅助轮回选择聚合育种和表型选择群体内的RAPD和SSR分子标记多态位点数及其比例 ,遗传离散度与杂合度 ,基因型种类数 ,不同群体间的遗传分化等进行研究。结果表明 ,经过两轮选择后 ,各群体的遗传多样性并没有损失 ,群体内的变异占总变异的 90 %以上。表型性状的变异分析结果也相类似。
The RAPD and SSR molecular marker polymorphism loci and their ratio,genetic dispersion and heterozygosity,genotype number in 7 populations and intrapopulation gene differentiation were analyzed.The results indicated that the genetic diversity in different populations didn′t reduce after two cycles′ recurrent selections and the intrapopulation variance was over 90% of total variance.So were the variances of phenotypic traits.
出处
《南京农业大学学报》
CAS
CSCD
北大核心
2004年第2期6-10,共5页
Journal of Nanjing Agricultural University
基金
国家 8 63计划项目 ( 2 0 0 1AA2 1110 1)
关键词
陆地棉
分子标记辅助选择
表型选择
遗传多样性
upland cotton
molecular marker-assisted selection
phenotypic selection
genetic diversity
