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| 广西石灰岩地区蜈蚣蕨居群的遗传多样性研究 | |
| 引用本文： | 周厚高,谢义林,黎桦,周琼,张西丽,王中仁,周世良.广西石灰岩地区蜈蚣蕨居群的遗传多样性研究[J].广西植物,2002,22(1):67-70. |
| 作者姓名： | 周厚高 谢义林 黎桦 周琼 张西丽 王中仁 周世良 |
| 作者单位： | 1. 仲恺农业技术学院,广东广州,510225 2. 广西大学农学院,广西南宁,530005 3. 中国科学院植物研究所,北京,100093 |
| 基金项目： | 国家自然科学基金资助项目 (编号 :3976 0 0 10 ) |
| 摘 要： | 采用等位酶分析方法 ,研究了广西石灰岩地区蜈蚣蕨居群的遗传多样性 ,分析了其空间变化趋势。检测了 8个酶系统 ,1 5个酶位点。分析结果表明 :广西石灰岩地区蜈蚣蕨居群遗传多样性程度较高 ,每个位点的等位基因平均数为 1 .6 7,多态位点为 5 7.78% ,平均期望杂合度为 0 .2 4 9。蜈蚣蕨居群的遗传组成在居群间有一定的差异 ,但差异的程度并不与空间距离成正比 |
| 关 键 词： | 蜈蚣蕨 等位酶分析 遗传多样性 |
| 文章编号： | 1000-3142(2002)01-0067-04 |
| 修稿时间： | 2000年9月25日 |
Analysis of genetic diversity on Pteris vittata L. populations from Guangxi limestone area |
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| ZHOU Hou-gao ,XIE Yi-lin ,LI Hua ,ZHOU Qiong ,ZHANG Xi-li ,WANG Zhong-ren ,ZHOU Shi-liang.Analysis of genetic diversity on Pteris vittata L. populations from Guangxi limestone area[J].Guihaia,2002,22(1):67-70. | |
| Authors: | ZHOU Hou-gao XIE Yi-lin LI Hua ZHOU Qiong ZHANG Xi-li WANG Zhong-ren ZHOU Shi-liang |
| Institution: | ZHOU Hou-gao 1,XIE Yi-lin 2,LI Hua 2,ZHOU Qiong 2,ZHANG Xi-li 2,WANG Zhong-ren 3,ZHOU Shi-liang 3 |
| Abstract: | Population genetic diversity and allele spatial distribution of Pteris vitatta from Guangxi limestone area were studied by allozyme electrophoresis. Eight enzyme systems and 15 loci were screened. The results showed that the genetic diversity of Pteris vitatta populations from Guangxi limestone area was high,the mean number of alleles per locus was 1.67,polymorphic loci was 57.78%,the mean expected heterozygosity was 0.249. There were difference in genetic variation among populations and no correlation between difference and spatial distance. |
| Keywords: | Pteris vitatta allozymic analysis genetic diversity |
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