| 特有种四合木种群遗传结构分析 |
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| 引用本文： | 张颖娟,卢萍.特有种四合木种群遗传结构分析[J].内蒙古师范大学学报(自然科学版),2006,35(1):89-93,98. |
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| 作者姓名： | 张颖娟 卢萍 |
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| 作者单位： | 内蒙古师范大学生命科学与技术学院,内蒙古呼和浩特010022 |
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| 摘 要： | 对四合木种群的遗传结构进行了研究．结果表明，四合木在种群水平上维持较高的遗传多样性．大部分遗传多样性存在于种群内，种群间的遗传分化很低．四合木的较高的遗传多样性是在长期进化过程中适应生境条件变化形成的．其基因组DNA存在较高的变异性，各种群之间存在一定的基因流，四合木各种群可看成是meta-种群，应注意保护四合木中具有丰富的遗传多样性的meta-种群．
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| 关 键 词： | 四合木 遗传结构 遗传多样性 meta-种群 |
| 文章编号： | 1001-8735（2006）01-0089-05 |
| 收稿时间： | 2005-04-07 |
| 修稿时间： | 2005-04-07 |
Analysis of the genetic structure of the endangered shrub Tetraena Mongolica |
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| ZHANG Ying-juan,LU Ping.Analysis of the genetic structure of the endangered shrub Tetraena Mongolica[J].Journal of Inner Mongolia Normal University(Natural Science Edition),2006,35(1):89-93,98. |
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| Authors: | ZHANG Ying-juan LU Ping |
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| Institution: | College of Life Sciences and Technology, Inner Mongolia Normal University, Huhhot 010022 ,China |
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| Abstract: | Tetraena mongolica Maxim(Zygophyllaceae) is a narrow endemic species distributed in the west of Ords plateau.Analysis of the genetic structure indicated that T.mongolica population maintain higher genetic diversity.Most of the genetic diversity exist within population and low genetic differentiation among populations.The high genetic diversity of T.mongolica populations has been formed in the process of long evolutional adaptation to the adverse habitat.There is a very high variation of genomic DNA in T.mongolica and some degree of gene flow among the populations.The populations can be consided meta-population of which the genetic diversity should be conserved. |
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| Keywords: | Tetraena mongolica genetic structure genetic diversity meta-population |
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