Application of SRAP Technology on Foxtail Millet and Its Wild Relative Green Foxtail

Wild green foxtail(Setaria viridis) was regarded as the ancestor of foxtail millet(S.italica).The phynogentic relationship between green foxtail and foxtail millet varieties was of profound significance.24 accessions of foxtail millet and green foxtail were analyzed by SRAP technology.The results showed that 127 polymorphic bands were amplified with 24 pairs of primers.The average proportion of polymorphic band with each pair of primers was 28.30%,that was to say,green foxtail and foxtail millet were rich in genetic diversity.The genetic similarity coefficients among each accession ranged from 0.56 to 0.90 with the average of 0.79.Cluster analysis revealed that 24 accessions were divided into two groups,one group included green foxtail varieties,and the other included part of green foxtail varieties and foxtail millet.