甘薯品种的SRAP遗传多样性分析

被引:18
作者
郝玉民 [1 ]
郭兰 [2 ]
韩延闯 [1 ]
刁英 [1 ]
杨新笋 [3 ]
胡中立 [1 ]
机构
[1] 武汉大学生命科学学院植物发育生物学教育部重点实验室
[2] 湖北省农业厅
[3] 湖北省农业科学院粮食作物研究所
关键词
遗传相似性; 分子标记; 多态性; 相似系数; SRAP标记; 甘薯;
D O I
暂无
中图分类号
S531 [甘薯(红薯)];
学科分类号
0901 ;
摘要
利用分子标记SRAP技术,对36个甘薯品种进行了DNA多态性分析。选取6对引物扩增甘薯基因组DNA,共获得112条带,其中110条为多态性条带,平均每对引物提供18个标记信息。由UPMGA方法得到的聚类分析结果表明了36个品种间的遗传关系。相似系数在0.62~0.92之间,品种间有较高的遗传相似性;在聚类树中,亚洲品种和美洲品种之间没有明显的遗传分化,表明甘薯品种间没有明显的地理差异;近缘野生种与育成品种聚在一起,没有明显的遗传分化,这意味着它们之间有较高的遗传相似度;中国育成品种聚在一起,表明它们之间的遗传相似度很高。
引用
收藏
页码:406 / 409
页数:4
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