JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2015, Vol. 39 ›› Issue (04): 7-12.doi: 10.3969/j.issn.1000-2006.2015.04.002

Previous Articles     Next Articles

Genetic diversity and identification of pecan by ISSR markers

LI Hui1, ZHANG Rui1, PENG Fangren1*, LI Yongrong2, ZHAI Min2   

  1. 1.College of Forestry, Nanjing Forestry University, Nanjing 210037, China;
    2. Nanjing Green Universe Pecan Science &
    Technology Co., Ltd., Nanjing 210014, China
  • Online:2015-07-31 Published:2015-07-31

Abstract: In this study, ISSR markers were used to evaluate the genetic diversity of 161 pecan cultivars and individuals, one walnut cultivar and one Carya cathayensis cultivars. A total of 56 bands were yielded by 14 ISSR premiers, and 55 were amplified bands(98% polymorphic). Nei’s gene diversity He and Shannon’s information index I were 0.366 8 and 0.542 8, respectively. The Nei’s genetic similarity coefficients ranged from 0.29 to 0.94, and the average was 0.649 6, which showed close genetic relationships. According to the results of cluster analysis, the 163 accessions could be divided into 9 groups, which showed that the genetic background was very complex.

CLC Number: