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Acta Prataculturae Sinica ›› 2014, Vol. 23 ›› Issue (1): 217-222.DOI: 10.11686/cyxb20140126

• Orignal Article • Previous Articles     Next Articles

ISSR analysis of genetic diversity of germplasm resources of Bothriochloa ischaemum in Shanxi

LI Yu-ying,DONG Kuan-hu   

  1. College of Animal Science and Technology,Shanxi Agricultural University,Taigu 030801,China
  • Received:2013-04-03 Online:2014-02-20 Published:2014-02-20

Abstract: The genetic diversities of 33 germplasm resources of Bothriochloa ischaemum in Shanxi Province were analyzed using inter-simple sequence repeat (ISSR) techniques. The genetic diversity among germplasm resources was relatively stable. Ninety-nine bands,of which 52 (52.23%) were polymorphic,were amplified using 10 pairs of ISSR primers. Analyzes by PopGen32 software showed the number of alleles (Na) was 1.5253±0.5019,the effective number of alleles (Ne) was 1.2941±0.3665,Nei’s gene diversity (H) was 0.1723±0.1983,and Shannon’s information index (I) was 0.2590±0.2841; According to the results of NTSYSpc 1.20c,the genetic similarity coefficient (GS) among 33 germplasm materials ranged from 0.8188 to 0.9801,the genetic distance (GD) ranged from 0.0200 to 0.1988. The population genetic diversity of 33 germplasm materials was low: the possible reason could be that the reproductive strategy of B. ischaemum is apomixic under natural conditions.

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