| 湿地松抗病种子园的遗传多样性分析 |
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| 引用本文： | 易能君,韩正敏,尹佟明,黄敏仁,曹汉洋.湿地松抗病种子园的遗传多样性分析[J].林业科学,2000,36(Z1):1-55. |
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| 作者姓名： | 易能君 韩正敏 尹佟明 黄敏仁 曹汉洋 |
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| 基金项目： | 国家自然科学基金!资助项目 ( 3 9770 62 8) |
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| 摘 要： | 本文利用RAPD分子标记从DNA水平上研究了湿地松 (PinuselliottiiEngelm)种子园的遗传多样性和连锁不平衡状况。结果表明 ,有效等位基因数目在各位点间变动范围为 1 0 47～ 1 996 ,平均为 1 4 499;基因多样度范围为 0 0 44 9～ 0 4 99,平均为 0 2 781 ;Shannon信息指数的范围为 0 1 0 95～ 0 6 92 2 ,平均为 0 4 32 7;这3个遗传多样性度量的大小顺序基本相同。 1 0 4个分离位点共有 5 35 6个位点对 ,其中 35 5对在显著性水平为0 0 5下达到显著的连锁不平衡状态。该抗病种子园具有较高的遗传多样性和一定程度的连锁不平衡
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| 关 键 词： | 湿地松 种子园 RAPD 遗传多样性 连锁不平衡 |
| 修稿时间： | 1998-05-04 |
GENETIC VARIATION OF RAPD MARKERS IN A DISEASE RESISTANT SEED ORCHARD OF \%PINUS ELLIOTTII\% ENGELM |
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| Yi Nengjun\ Hang Zhengmin\ Yin Tongming\ Huang Minren.GENETIC VARIATION OF RAPD MARKERS IN A DISEASE RESISTANT SEED ORCHARD OF \%PINUS ELLIOTTII\% ENGELM[J].Scientia Silvae Sinicae,2000,36(Z1):1-55. |
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| Authors: | Yi Nengjun\ Hang Zhengmin\ Yin Tongming\ Huang Minren |
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| Abstract: | Genetic variation and linkage disequilibrium in a disease resistant seed orchard of \%Pinus elliottii\% Engelm were investigated by using RAPD markers in this paper. The results showed that the effective number of alleles per locus ranged between 1.047 and 1.996, averaging 1.449; Estimates of gene diversity per locus ranged between 0.0449 and 0.499, averaging 0.2781;and the Shannon's information index ranged between 0.1095 and 0.6922, averaging 0.4327. The order of these three measures per locus was the same. Out of 5356 pairs of RAPD loci in 104 segragating loci, 355 pairs showed significant deviations from linkage equilibrium. These results indicated that high genetic variation and linkage disequilibrium were harbored in this seed orchard. |
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| Keywords: | Pinus elliottii Engelm Seed orchard RAPD markers Genetic diversity Linkage disequilibrium |
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