›› 2019, Vol. 31 ›› Issue (10): 1624-1631.DOI: 10.3969/j.issn.1004-1524.2019.10.07

• Horticultural Science • Previous Articles     Next Articles

Genetic diversity analysis and fingerprinting construction of Muscat Hamburg grapevine series by iPBS marker

ZHANG Anshi1, PANG Jincheng1, LIU Ying1, GAO Dengtao2, WEI Zhifeng2,*   

  1. 1. School of Science, Jiaozuo Teachers College, Jiaozuo 454000, China;
    2. Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009,China
  • Received:2019-04-03 Online:2019-10-25 Published:2019-10-30

Abstract: In order to explore the genetic relationship among the germplasm resources of Muscat Hamburg grapevine series, the genetic diversity of 39 cultivars was analyzed by iPBS marker, and their DNA fingerprints were constructed. 14 primers were screened for PCR amplification of 39 cultivars. A total of 152 bands were generated, of which 132 bands were polymorphic bands (86.86%).The average value of polymorphism information content, number of observed alleles, number of effective alleles, Nei's gene diversity index and Shannon's information index were 0.863 8, 1.868 4, 1.409 0, 0.251 8 and 0.390 7, respectively. The genetic similarity coefficient among 39 cultivars ranged from 0.526 3 to 0.940 8 with a range of 0.413 5. The above results indicated that there were rich genetic diversity among 39 cultivars. The dendrogram of these 39 cultivars was constructed using UPGMA. They could be divided into 4 groups at genetic similarity coefficient of 0.72, of which V. vinifera were mainly distributed in Group Ⅰ, while the Euro-American hybrids species were mainly distributed in Groups Ⅱ, Ⅲ and Ⅳ. The DNA fingerprints of 39 cultivars were constructed using 16 polymorphic loci amplified of 8 primers, providing scientific basis for the identification of Muscat Hamburg grapevine series.

Key words: grape, iPBS, DNA fingerprint, genetic diversity

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