Genetic variation and phylogenetic relationships of orchardgrass(Dactylis glomerata L.) as revealed by SSR markers
Phylogenetic relationships among 53 accessions of D.glomerata collected from 5 continents were investigated using simple sequence repeat (SSR) markers. 15 SSR primer pairs generated a total of 127 alleles , with an average of 8.5 alleles per locus. The average polymorphic rate (P) was 95.21%. The genetic similarity (GS) among all accessions ranged from 0.43 to 0.94, with an average of 0.63. Analysis of molecular variance (AMOVA) indicated that larger proportions of variability existed within geographical regions (73.75%). High degree of genetic diversity was observed in Asia (P, 90.55%) and Europe (P, 86.61%) groups. Based on the cluster and principal component analysis, 53 accessions could be divided into five groups (GS=0.64) according to the nearest phylogenetic relationship.
Dactylis glomerata L. Germplasm resources SSR Genetic diversity
Wengang Xie Xinquan Zhang Xiao Ma Yan Peng
Department of Grassland Science, Sichuan Agricultural University, Yaan 625014, China
国际会议
首尔
英文
122-123
2009-08-10（万方平台首次上网日期，不代表论文的发表时间）