Studies on genetic stability of sweetpotato germplasm maintained in National In Vitro Genebank

摘要：

Three mark methods,morphological characterization,the esterase(EST)isozyme electrophoretogram and random amplified polymorphism DNA(RAPD)molecular marker were used to analyse genetic stability of sweetpotato germplasm maintained In Vitro for 8 years at the National Sweetpotato In Vitro Genebank.The results showed that most agronomic characters and the EST isozyme zymogram of sweetpotato germplasm stored in vitro for a long term were basically the same as the controls preserved in field.With molecular marker RAPD,majority varieties had the same amplified product,and few difference was detected in individual varieties.That means long term in vitro storage may affect the genetic stability of individual sweetpotato germplasm,and this affection could be detected by RAPD.

关键词： Sweetpotato germplasm In vitro Genetic stability EST RAPD

作者: Donglan Zhao Jun Tang Zhilin Zhou Yungang Zhang

作者单位: Xuzhou Sweetpotato Research Center,Xuzhou 221121,China

会议类型: 国际会议

会议名称: 3rd China-Japan-Korea Workshop on Sweetpotato(第三届中日韩甘薯学术研讨会)

会议地点: 北京

会议语种:英文

页码: 19-24

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）