中国核桃8个天然居群遗传多样性分析

doi:10.11707/j.1001-7488.20070720

Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (07): 120-124.doi: 10.11707/j.1001-7488.20070720

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

Wang Hua¹,Hao Junmin¹,Wang Baoqing^1,2,Pei Dong¹

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

Abstract

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 (H_e) 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 (N_m) 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

Wang Hua;Hao Junmin;Wang Baoqing;Pei Dong. SSR Analysis of Genetic Diversity of Eight Natural Walnut Populations in China[J]. Scientia Silvae Sinicae, 2007, 43(07): 120-124.

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

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