Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Genetic Diversity of Tartary Buckwheat Germplasms

Morigengchaogetu,WANG Peng-ke,GAO Jin-feng,GAO Xiao-li,CHAI Yan*(College of Agronomy,Northwest A&F University,Yangling,Shaanxi 712100,China)  
In order to know genetic diversity of buckwheat which is unique crop germplasm in China,as well as to promote the breeding of fine varieties of buckwheat,we investigated and compared the genetic diversity of 82 germplasm of tartary buckwheat from the main regions:Shaanxi,Yunnan,Sichuan,Xizang using SSR(Simple Sequence Repeats) markers.The results indicated that:(1) there were 13 primers with medium or high polymorphisms,among the 25 SSR primers used in this study;208 bands were observed in all of the 82 materials,200 of which have a good stability,with a frequency of 96.2%.(2)Result from cluster analysis showed that genetic similarities among 82 varieties ranged from 0.52 to 0.85 with an average of 0.69.When the genetic similarities was 0.722,all materials were clustered into 10 groups in the dendrogram based on SSR data and it indicated that there was a significant genetic diversity and a broader genetic basis among 82 buckwheat cultivars.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved