Genetic Diversity of Tartary Buckwheat(Fagopyrum Tataricum L. Gaerth)Landraces from Tibet

摘要：

Tibet is one of the origins of tartary buckwheat(Fagopyrum tataricum L. Gaerth)，and understanding the genetic diversity of tartary landraces from Tibet will benefit the application of those genetic resources in tartary buckwheat improvement．PCR with intron-splice junction primers and long random primers were used to reveal the genetic diversity among 43 tartary buckwheat accessions from Tibet. The results showed that 79 PCR bands in total were amplified using 7 primers，among those 61 PCR bands were polymorphic and accounts for 77．2％．A1,0data matrix was established based on the PCR data,the genetic similarity coefficients between every two accessions were calculated and subjected to conduct cluster analysis using NTSYSpc 2．1. There genetic diversity Was observed among those tartary landraces with genetic similarity coefficient ranged in 0．59-0．93，but in general，the genetic diversity was limited. The clusters revealed could reflect the origin of those landraces，and there were obvious differences between those clusters in the major agronomic characters，such as growth days，plant height，branches in the main stem，nodes in the main stem，1000 kernels weight．

关键词： Tartary buckwheat (Fagopyrum tataricum L．Gaerth) Intron-splice junction primer Genetic similarity coefficient Genetic diversity Cluster analysis

作者: Hu Yingang Li Ruiguo Zhang Yan Zhuo Ga Feng Baili Chai Yan

作者单位: College of Agronomy, Nonhwest A&F University, Yangling, Shaanxi, 712100 Shaanxi Key Lab of Molecular College of Agronomy, Nonhwest A&F University, Yangling, Shaanxi, 712100 Tibet Academy of Agriculture and Animal Husbandry Sciences, Lasha, Tibet, 850032 College of Agronomy, Nonhwest A&FUniversity, Yangling, Shaanxi, 712100

会议类型: 国际会议

会议名称: The 10th International Symposium on Buckwheat(第十届国际荞麦会议)

会议地点: 陕西杨凌

会议语种:英文

页码: 76-84

在线出版日期: 2007-08-14（万方平台首次上网日期，不代表论文的发表时间）