| 思茅松天然群体的遗传多样性及遗传分化 |
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| 引用本文： | 陈少瑜,王炯,等.思茅松天然群体的遗传多样性及遗传分化[J].林业研究,2002,13(4):273-276. |
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| 作者姓名： | 陈少瑜 王炯 |
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| 作者单位： | 云南省林业科学院，云南省林业科学院，云南省珍稀濒危植物引种繁育中心 昆明650204，中国，昆明650204，中国，昆明650032，中国 |
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| 基金项目： | his article was supported by the Natural Science Founda-tion of Yunnan Province (No.98C017Q). |
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| 摘 要： | 采用凝胶电泳技术,检测了思茅松(Pinuskesiyavar.Langbinaensis)种子胚乳的9种同工酶。通过对9种酶系统编码的16个酶位点的遗传分析,揭示了思茅松三个天然群体的遗传多样性和遗传分化情况。思茅松天然群体的遗传多样性较高,群体的多态位点比例为0.667;平均每个位点的等位基因数为2.13;期望杂合度和观察杂合度分别为0.288和0.197。群体间的遗传分化程度较低,分化系数仅为0.052,群体间的遗传距离为0.015。表5参15。
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| 关 键 词： | 思茅松 天然群体 同工酶 遗传多样性 遗传分化 |
| 收稿时间： | 26 July 2002 |
Genetic diversity and genetic differentiation of natural populations of<Emphasis Type="Italic">Pinus kesiya</Emphasis> var.<Emphasis Type="Italic">langbinanensis</Emphasis> |
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| Chen Shao-yu,Zhao Wen-shu,Wang Jiong.Genetic diversity and genetic differentiation of natural populations ofPinus kesiya var.langbinanensis[J].Journal of Forestry Research,2002,13(4):273-276. |
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| Authors: | Chen Shao-yu Zhao Wen-shu Wang Jiong |
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| Institution: | (1) Yunnan Academy of Forestry Science, 650204 Kunming, P. R. China;(2) The Introduction and Breeding Center of Rare and Endangered Plants and Animals of Yunnan Province, 650034 Kunming, P.R. China |
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| Abstract: | Genetic diversity and genetic differentiation of natural populations of Pinus kesiya var. langbinanensis were examined by means of electrophoresis technique. Analysis of 9 enzyme systems including 16 loci showed that all the three natural popu-lations of the pine were high in genetic diversity but low in inter-population genetic differentiation. The proportion of polymorphic loci is 0.667, with each locus holding 2.13 alleles, averagely. The average expected and observed heterozygosity was 0.288 and 0.197, respectively. The gene differentiation among populations was 0.052, but the mean genetic distance was only 0.015. |
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| Keywords: | Pinus kesiya var langbinanensis Natural population Isozyme Genetic diversity Genetic differentiation |
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