| 华东地区青冈种群的等位酶变异 |
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| 引用本文： | 陈小勇,宋永昌.华东地区青冈种群的等位酶变异[J].植物资源与环境学报,1995,4(4):10-16. |
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| 作者姓名： | 陈小勇 宋永昌 |
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| 作者单位： | 厦门大学生物系，华东师范大学环境科学系 |
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| 摘 要： | 华东地区６个青岗种群等位酶变异的检测结果表明，青冈种群的遗传变异较大，每位点含有的等位基因较多，平均为２．３个，种水平的平均每位点等位基因数目为２．４。种群水平有效等位基因数目为１．４４６，种水平为１．４６７。Ｈａｒｄｙ－Ｗｅｉｎｂｅｒｇ平衡检验表明，青冈种群中不少位点偏离该平衡，其原因是种群内含有较多的纯合子，表现为多数位点的固定指数大于０，其中有９个位点的固定指数与０的偏差达到显著水平。
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| 关 键 词： | 等位基因数目 青冈 种群 华东地区 |
The allozymic variation of Cyclobalanopisis glauca populations in East China |
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| Chen Xiao-Yong.The allozymic variation of Cyclobalanopisis glauca populations in East China[J].Journal of Plant Resources and Environment,1995,4(4):10-16. |
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| Authors: | Chen Xiao-Yong |
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| Abstract: | ycolbalanopisis glauce,an evergreen broadleaved woody plant species, widely distributes in subtropical area of China. 6 populations in East China were chozen to study their allozymic variation.C. maintains high genetic variation. At the population level , mcan number of alleles per loci is 2.3(range from 2.1 to 2.5) lower than that of species level(2.4).The effective numbers of alleles of 6 populations are 1.310 to 1.659 (mean 1.446),while at the species level it is 1.4 67;Chi-square test indicates a deviation from Hardy-Weinberg equilibrium,which is caused by excess of homozygosites in populations,in a few loci. |
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| Keywords: | ene frequency effective number of allele Hardy -Weinberg equilibrium fixation index Cyclobalanopsis gauca(Thunb ) Oerst |
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