烟草科技2017，Vol.50Issue(11)：1-8,8.
应用SNP标记分析24份烟草品种的遗传多样性
Genetic diversities of 24 tobacco cultivars analyzed by SNP
摘要
Abstract
To clarify the genetic diversities of major tobacco cultivars in China, 24 tobacco cultivars were selected for whole-genome scan with 430 K tobacco SNP array. The genetic diversities of the 24 cultivars were analyzed. The results showed that 103 133 polymorphism(SNP)loci were found, which basically covered tobacco genome. The genetic similarity of the 24 cultivars ranged from 0.308 6 to 0.997 7. The 24 cultivars were classified into different groups by UPGMA analyses to reveal their genetic relationships. It indicated that SNP array could identify the diversity at whole-genome level, which could be used to analyze the genetic diversities of different cultivars. Very narrow genetic background was observed for major tobacco cultivars. Thus, it is an urgent task to introduce diversified germplasm resources into tobacco breeding program for increasing tobacco genetic diversity.关键词
烟草/品种/SNP芯片/遗传多样性/聚类分析Key words
Tobacco/Cultivar/SNP/Genetic diversity/Cluster analysis分类
农业科技引用本文复制引用
张剑锋,杨军,罗朝鹏,何声宝,金静静,李泽锋,许亚龙,谢小东,魏攀,王燃..应用SNP标记分析24份烟草品种的遗传多样性[J].烟草科技,2017,50(11):1-8,8.基金项目
郑州烟草研究院院长科技发展基金项目"烟草主栽品种SNP指纹图谱构建及高效分子检测体系研究"(902015CA0270) （902015CA0270）
烟草基因组计划重大专项"烟草SNP芯片研制及标准、典型表达图谱绘制"110201301002(JY-02). （JY-02）
