| 思茅松种子园遗传结构及遗传多样性 |
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| 引用本文： | 陈少瑜,赵文书,张树红.思茅松种子园遗传结构及遗传多样性[J].云南大学学报(自然科学版),2001,23(6):472-477. |
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| 作者姓名： | 陈少瑜 赵文书 张树红 |
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| 作者单位： | 云南省林业科学院热带林业研究所, |
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| 基金项目： | 云南省自然科学基金资助项目(98C017Q). |
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| 摘 要： | 采用等位酶分析的方法对思茅松种子园内收集的4个思茅松群体进行遗传分析，以此阐述了思茅松种子园的遗传结构和遗传多样性状况。9种酶16个酶位点的遗传分析结果：思茅松种子园的多态位点比例（P）为73.5%；平均每个位点的等位基因数（A）为2.42;平均每个位点的等位基因有效数（Ne）为1.54；期望杂合度（He）为0.295；实际杂合度（H0）为0.181。结果表明思茅松种子园具有较广泛的遗传基因和遗传多样性；思茅松种子园的建立是思茅松遗传改良的有效途径之一。
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| 关 键 词： | 思茅松 种子园 遗传多样性 遗传改良 遗传结构 育种 |
| 文章编号： | 0258-7971(2001)06-0472-06 |
| 修稿时间： | 2001年5月20日 |
Study on the Genetic Structure and Genetic Diversity of Pinus kesiya var.langbianensis Seed Orchard |
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| CHEN Shao-yu ,ZHAO Wen-shu ,ZHANG Shu-hong.Study on the Genetic Structure and Genetic Diversity of Pinus kesiya var.langbianensis Seed Orchard[J].Journal of Yunnan University(Natural Sciences),2001,23(6):472-477. |
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| Authors: | CHEN Shao-yu ZHAO Wen-shu ZHANG Shu-hong |
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| Institution: | CHEN Shao-yu 1,ZHAO Wen-shu 1,ZHANG Shu-hong 2 |
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| Abstract: | The genetic structure and genetic diversity of seed orchard of Pinus kesiya var.langbianensis has been studieded via alle-isozyme analysis of the four populations in the orchard.The analysis on 16 loci coding for 9 isozymes shows the percentage of polymorphic loci of the orchard is 73.5%,the average number of alleles per locus is 2.42,the effective number of allele per locus is 1.54,and the average expected and observed heterozygosity is 0.295 and 0.181 respectively.The results implied a quite wide genetic basis and rich genetic diversity in the seed orchard,and the establishment of the seed orchard is an effective way of genetic improvement for Pinus kesiya var.langbianensis. |
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| Keywords: | Pinus kesiya var langbianensis seed orchard genetic diversity genetic improvement |
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