| 栎属天然林的遗传结构和遗传多样性研究 |
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| 引用本文： | 丁小飞,陈红林,曹健,管兰华,河野,耕藏,生方,正俊,冈村,政则.栎属天然林的遗传结构和遗传多样性研究[J].湖北林业科技,2005(4):1-4. |
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| 作者姓名： | 丁小飞 陈红林 曹健 管兰华 河野 耕藏 生方 正俊 冈村 政则 |
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| 作者单位： | 湖北省林木育种科学技术中心,武汉,430079 |
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| 摘 要： | 利用聚苯酰烯胺凝胶电泳技术检验了栎属6个群体在7个同工酶位点(Got-1、Got-2、Shdh、Aap-1、Aap-2、Pgi、6Pgd)上的遗传变异(多态位点百分率为93.3%,等位基因平均数2.806,平均预期杂合率为0.346)。基因分化系数为0.394,表明居群变异的39.4%出现在居群间,60.6%出现在居群内,各居群间的遗传距离为0.0206～0.6411。初步的研究表明:其丰富的遗传变异可能与其生境的多样性、风媒异交等因素造成的长距离的基因漂变有关。
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| 关 键 词： | 栎属 同工酶 遗传变异 |
| 收稿时间： | 2004-06-02 |
| 修稿时间： | 2004年6月2日 |
Study on Genetic Structure and Genetic Diversity of Natural Forest to Quercus L. |
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| Ding XiaoFei;Chen GongLin;Cao Jian;Guan LanHua;He Ye;Geng Cang;Sheng Fang;Zheng Jun;Gang Cun;Zheng Ze.Study on Genetic Structure and Genetic Diversity of Natural Forest to Quercus L.[J].Hubei Forestry Science and Technology,2005(4):1-4. |
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| Authors: | Ding XiaoFei;Chen GongLin;Cao Jian;Guan LanHua;He Ye;Geng Cang;Sheng Fang;Zheng Jun;Gang Cun;Zheng Ze |
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| Institution: | Scientifice and Technical Center for Forest Tree Breeding of Hubei Province Wuhan 430079 |
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| Abstract: | Isozyme genetic variation at seven loci(Got-1、Got-2、Shdh、Aap-1、Aap-2、Pgi、6Pgd)in six populations of Quercus L. was invested using isozyme electrophorsis technique.The result showed very high genetic variation among the populations with numbers of polymorphic loci percentage 93.3% average excepted heterzygosity 0.346 and average allele number 2.806.In general, gene differentiation coefficient was 0.394, about 39.4%of the genetic varation was attributed among populations,while the remaining 60.6%within populations.The genetic distance among population ranged from 0.020 6～0.641 1.The primary research indicated that the high level of genetic variation could be closely related to the long-distance which was attributed to the diversity of its habitat,the outcrossing-winded drifted and so on. |
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| Keywords: | Quercus L isozyme genetic variation |
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