[Genetic diversity of Dactylis glomerata germplasm resources detected by Inter-simple Sequence Repeats (ISSRS) molecular markers].
Inter-simple Sequence Repeat (ISSR) molecular markers were used to detect the genetic diversity among 50 materials of Dactylis glomerata collected from China and other countries. Twelve primers produced 101 polymorphic bands, averaged 8.41 bands each primer pair. The average percentage of polymorpgic bands was 86.3.8%, and the range of GS (define) was 0.6116-0.9290, indicating a rich genetic diversity of D. glomerata. Based on the cluster and principal component analyses on the genetic characteristics, D. glomerata could be divided into 5 groups according to the nearest phylogenetic relationship. In most cases, accessions from the same continent were classified into the same group, the accessions from China and the United States belong to the different groups, respectively, indicating the geographical distribution of genetic diversity of D. glomerata. The present paper also discussed collection and conservation of germplasm resources in D. glomerata.
Zeng
Bing
B
Department of Grassland, Sichuan Agricultural University, Ya'an, China. zbin78@163.com
Zhang
Xin-Quan
XQ
Fan
Yan
Y
Lan
Ying
Y
Ma
Xiao
X
Peng
Yan
Y
Liu
Wei
W
D003247:Conservation of Natural Resources; D031745:Dactylis / Q000145:classification / Q000235:genetics*; D005819:Genetic Markers / Q000235:genetics; D014644:Genetic Variation; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D025341:Principal Component Analysis; D012091:Repetitive Sequences, Nucleic Acid / Q000235:genetics*
D005819:Genetic Markers