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林业科学 ›› 2007, Vol. 43 ›› Issue (07): 120-124.doi: 10.11707/j.1001-7488.20070720

• 研究简报 • 上一篇    下一篇

中国核桃8个天然居群遗传多样性分析

王滑1 郝俊民1 王宝庆1,2 裴东1   

  1. 1.中国林业科学研究院林业研究所国家林业局森林培育重点实验室,北京100091;2.内蒙古农业大学林学院呼和浩特010019
  • 收稿日期:2007-01-10 修回日期:1900-01-01 出版日期:2007-07-25 发布日期:2007-07-25

SSR Analysis of Genetic Diversity of Eight Natural Walnut Populations in China

Wang Hua1,Hao Junmin1,Wang Baoqing1,2,Pei Dong1   

  1. 1. Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration Research Institute of Forestry, CAF Beijing 100091; 2. College of Forestry, Inner Mongolia Agricultural University Hohhot 010018
  • Received:2007-01-10 Revised:1900-01-01 Online:2007-07-25 Published:2007-07-25

关键词: 铁核桃, 核桃, SSR, 遗传多样性, 遗传分化

Abstract:

Eight Juglans populations (4 populations of J. sigillata and 4 of J. regia), which are distributed in Yunnan, Sichuan, Henan, and Shanxi Province, were selected to investigate their genetic structure and diversity using 8 microsatellite loci. A moderate level of genetic diversity was observed at population level by the total 71 of alleles. The mean expected heterozygosity (He) of all populations was 0.618. The proportion of genetic differentiation among populations accounted for 19.6% of the whole diversity, and the gene flow between populations (Nm) was 1.02. The result of UPGMA clustering indicated that the populations were congregated according to their geographic distances instead of tree species.

Key words: Juglans sigillata, Juglans regia, SSR, genetic diversity, genetic differentiation