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青冈种群克隆多样性及其与环境因子的关系
引用本文:陈小勇,宋永昌.青冈种群克隆多样性及其与环境因子的关系[J].植物生态学报,1997,21(4):342-348.
作者姓名:陈小勇  宋永昌
作者单位:华东师范大学环境科学系
摘    要: 采用等位酶分析测定了6个青冈种群的克隆多样性。种群和种水平上每基因型含有的个体(克隆分株)数分别为1.270和1.508。青冈种群中克隆多样性较高,Simpson’s指数平均为0.9882,均匀度平均为0.7921。81.3%的基因型为局部分布,仅有1种(0.5%)基因型分布于75%以上的种群中。相关分析表明Simpson’s指数与总氮含量呈显著的负相关(P<0.05),与其他环境因子的相关性不显著。

关 键 词:等位酶分析  克隆多样性  环境因子  青冈

Clonal Diversity in Cychlbalanopsis glauca Population and Its Relationship with Environmental Factors
Chen Xiaoyong and Song Yongchang.Clonal Diversity in Cychlbalanopsis glauca Population and Its Relationship with Environmental Factors[J].Acta Phytoecologica Sinica,1997,21(4):342-348.
Authors:Chen Xiaoyong and Song Yongchang
Abstract:Clonal diversity in six Cyclobalanopsis glauca populations were determined by means of allozyme analysis. Individuals per genotype were 1.270 and 1.508 at population and species levels, respectively. High clonal diversity was found in the populations. Mean Simpson’s diversity index for the six populations was 0.9882,and eveness averaged 0. 7921. 81.3% of the genotypes distributed locally. Only one genotype (0.5 %) distributed over more than 75 % of the populations. Correlation analysis shows a significant relation between Simpson’s index and total nitrogen (P< 0.05) ,and no significant relation were observed between clonal diversity and other environmental factors.
Keywords:Allozyme analysis  Clonal diversity  Environmental factors  Cyclobalanopsis glauca
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