Analysis of genetic diversity of sweetpotato stem nematode disease resistance by SRAP and RGA markers

摘要：

To evaluate the genetic diversity of sweetpotato,50 accessions of sweetpotato were analyzed by 5 highly polymorphic and stable primer pairs selected from 40 pairs of SRAP-RGA primers by SRAP and RGA markers. Each primer combination generated 9-13 bands,and 49 polymorphic bands were detected by electrophoresis,accounting for 85.96％ of the total bands detected. The similarity coefficient of the 50 cultivars was 0.2~0.8.These germplasms were divided into three groups based on the similarity level of 0.58. It appears that SRAP and RGA markers can be used for genetic diversity study of sweetpotato. The results of this study may offer a better reference for the selection of hybridization parents.

关键词： sweetpotato SRAP RGA cluster analysis genetic diversity

作者: HUANG Wen-jing WANG Yu JIANG Lin JI Bi-xia NIE Shi-xian

作者单位: College of Life Science,Anhui University,Hefei, 230039, China

会议类型: 国际会议

会议名称: China Xuzhou 4th International Sweetpotato Symposium & 4th China-Japan-Korea Workshop(中国徐州第四届国际甘薯学术研讨会暨第四届中日韩甘薯学术讨论会)

会议地点: 徐州

会议语种:英文

页码: 113-120

在线出版日期: 2010-11-27（万方平台首次上网日期，不代表论文的发表时间）