| 思茅松天然种群及其种子园的遗传多样性 |
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| 引用本文： | 陈少瑜,赵文书,王炯. 思茅松天然种群及其种子园的遗传多样性[J]. 福建林业科技, 2002, 29(3): 1-5 |
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| 作者姓名： | 陈少瑜 赵文书 王炯 |
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| 作者单位： | 1. 云南省林业科学院云南珍稀濒特森林植物保护和繁育重点实验室,云南,昆明,650204
2. 云南省珍稀濒危植物引种繁育中心,云南,昆明,650032 |
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| 基金项目： | 云南省自然科学基金资助 (98C0 17Q) |
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| 摘 要： | 采用垂直板聚丙烯酰胺凝胶电泳和水平切片淀粉凝胶电泳技术对思茅松 3个天然种群和思茅松种子园的遗传多样性状况进行了研究。 9种同工酶系统 16个基因位点的分析结果表明 :思茅松天然种群具有较高的遗传多样性 ,多态位点比率P =70 1% ,等位基因平均数A =2 2 7,平均预期杂合度He=0 2 91;群体间的遗传分化程度较低 ,基因分化系数GST=0 0 5 2。思茅松种子园的遗传多样性较天然种群丰富 ,以上各遗传参数值依次为P =73 5 % ,A =2 4 2 ,He =0 2 95 ,种子园营建是林木遗传改良的一种有效途径
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| 关 键 词： | 思茅松 天然种群 种子园 同工酶 遗传多样性 |
| 文章编号： | 1002-7351(2002)03-0001-05 |
| 修稿时间： | 2002-01-22 |
The Genetic Diversity of Natural Populations and Seed Orchards of Pinus kesiya |
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| CHEN Shao yu ,ZHAO Wen shu ,WANG Jiong. The Genetic Diversity of Natural Populations and Seed Orchards of Pinus kesiya[J]. Journal of Fujian Forestry Science and Technology, 2002, 29(3): 1-5 |
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| Authors: | CHEN Shao yu ZHAO Wen shu WANG Jiong |
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| Affiliation: | CHEN Shao yu 1,ZHAO Wen shu 1,WANG Jiong 2 |
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| Abstract: | The analysis results show that Pinus kesiyanatural populations possess relatively high genetic diversity,polymorphic site percentage P=70 1%,allelic gene average number A=2 27,average expected heterozygous degree He=0 291;the genetic differentiation degrees among populations are relatively low,genetic differentiation coefficient G ST =0.052 The genetic diversity of P kesiyaseed orchards is richer than that of P kesiyanatural populations.The above mentioned various genetic parameter values are as fouows:P=73.5%,A=2 42 and He=0 295,the seed orchard construction is an effective way of forest tree genetic improvement. |
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| Keywords: | Pinus kesiya natural population seed orchard isodynamic enzyme genetic diversity |
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