Welcome to Acta Prataculturae Sinica ! Today is Share:

Acta Prataculturae Sinica ›› 2010, Vol. 19 ›› Issue (6): 164-170.

Previous Articles     Next Articles

Genetic diversity of Dichondra repens germplasm in southwest China by SRAP

FU Wei1,2, GAN You-min1, WU Jia-hai2, WANG Xiao-li2, CHEN Wei2, ZHANG Jian-bo2   

  1. 1.Sichuan Agricultural University, Ya’an 625014, China;
    2.Guizhou Pratacultural
    Institute, Guiyang 550001, China
  • Received:2009-12-21 Online:2010-06-25 Published:2010-12-20

Abstract: The genetic diversity of 21 Dichondra repens, were analyzed using 19 highly polymorphic and stable primer pairs selected from 80 pairs of SRAP primers and the 19 primer pairs produced 212 bands, including 156 polymorphic bands (8.2 bands per primer pair). The average percentage of polymorphic bands was 73.58%. Genetic similarity of D. repens was calculated by Nei’s method and showed that the genetic similarity ranged from 0.444-0.980, and the average Nei’s coefficient was 0.76. It suggested that there was a rich genetic diversity among the resources of D. repens tested. The shape of the SRAP dendrogram showed that the 21 materials could be divided into three groups with 0.78 thresholds, and materials from the same origin frequently clustered into the same group. The research indicated a correlation among the wild resources and their geographical and ecological environments.

CLC Number: