Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (S1): 39-48. doi: 10.7668/hbnxb.20194229

Special Issue: Biotechnology

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Genetic Diversity Analysis of Alfalfa Based on ISSR and SSR Markers

MA Biao, NAN Lili, YAO Yuheng, XIA Jing, WANG Kun, CHEN Jie, HE Haipeng   

  1. Pratacultural College,Gansu Agricultural University,Key Laboratory of Grassland Ecosystem,Ministry of Education,Lanzhou 730070,China
  • Received:2023-04-27 Published:2023-12-28

Abstract:

To explore the genetic relationship of alfalfa germplasm resources and provide theoretical basis for the identification of alfalfa varieties and the breeding of new varieties.Genetic diversity of 30 alfalfa materials was analyzed by ISSR and SSR markers.A total of 125 bands and 117 polymorphic bands were amplified by 12 ISSR labeled primers.The polymorphic band ratio(PPB)was 93.01%.The average effective allele number(Ne),Nei's gene diversity index(H)and Shannon diversity index(I)were 1.465 9,0.281 3 and 0.431 4,respectively.A total of 152 bands and 144 polymorphic bands were amplified by 12 SSR markers,and the polymorphism band ratio(PPB)was 94.05%.The average effective allele number(Ne),Nei's gene diversity index(H)and Shannon diversity index(I)were 1.542 7,0.313 9 and 0.470 1,respectively.The genetic similarity coefficient and cluster analysis of the two markers showed that Zxy2010p-7900 and Zxy2010p-7740 could be divided into a separate category and were far related to other materials.Qingshui alfalfa,Longdong alfalfa and Gannong No.4 mixed alfalfa can be divided into one group,the genetic similarity coefficient between the varieties is large,and the relationship is close.The phylogenetic relationship of the tested alfalfa germplasm was objectively determined by the two labeling methods.

Key words: Alfalfa, ISSR, SSR, Genetic diversity, Genetic relationship

Cite this article

MA Biao, NAN Lili, YAO Yuheng, XIA Jing, WANG Kun, CHEN Jie, HE Haipeng. Genetic Diversity Analysis of Alfalfa Based on ISSR and SSR Markers[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(S1): 39-48. doi: 10.7668/hbnxb.20194229.

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