›› 2018, Vol. 30 ›› Issue (9): 1445-1453.DOI: 10.3969/j.issn.1004-1524.2018.09.01

• Crop Science • Previous Articles     Next Articles

Genetic diversity analysis of alpine potato germplasm resources by isozyme

HONG Senrong, ZHANG Mingxin, YE Siyu, NING Bensong   

  1. College of Life Sciences, Shangrao Normal University, Shangrao 334001, China
  • Received:2017-11-27 Online:2018-09-25 Published:2018-10-15
  • Supported by:
    上饶师范学院2017年大学生创新创业训练计划(2017-CX-49)

Abstract: The genetic diversity of alpine potato germplasm resources in Yunnan Dehong, Yunnan Qujing, Hubei Enshi and Jiangxi Huaiyushan was analyzed by peroxidase (POD), esterase (EST) and polyphenol oxidase (PPO) isozyme in this paper. The results showed that Yunnan Dehong alpine potato, Yunnan Qujing alpine potato and Hubei Enshi alpine potato belonged to the same type, and the degree of their genetic differentiation was low, while the alpine potato in Jiangxi Huaiyushan was a separate group. Isozyme analysis of tubers and leaves would result in the difference of results, and isozyme analysis should ensure the consistency of sampling. The results of this study can provide the basis for further genetic improvement of potato varieties, selection of hybrid parents and utilization of alpine potato germplasm resources.

Key words: alpine potato, germplasm resources, genetic diversity, isozyme analysis

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