| 不同盐度梯度的桐花树种群的遗传多样性和遗传分化 |
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| 引用本文： | 黎中宝,林鹏,林益明.不同盐度梯度的桐花树种群的遗传多样性和遗传分化[J].海洋科学,2001,25(2):4-7. |
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| 作者姓名： | 黎中宝 林鹏 林益明 |
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| 作者单位： | 1. 厦门大学生命科学学院
2. School of Life Science, Xiamen University |
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| 基金项目： | 国家教育部博士学科点专项科研基金资助项目!1999038410号 |
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| 摘 要： | 采用垂直板型聚丙烯酰胺凝胶电泳测定了九江江口不同盐度梯度的桐花树种群的遗传多样性和遗传分化，桐花树种群维持有较高的遗传变异性，观察杂合度为０．３００，期望杂合度为０．２１５。种群间遗分化系数较小为ＧＳＴ＝０．１０１，表明总的遗传变异中有１０．１％来自种群间。种群间遗传距离和遗传一致度均值分别为０．０４５和０．９５５，其中流畅，Ｎm=2．09。
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| 关 键 词： | 等位酶 遗传多样性 遗传分化 盐度梯度 桐花树 种群 紫金牛科 |
| 收稿时间： | 2000/7/13 0:00:00 |
| 修稿时间： | 2000年7月13日 |
GENETIC DIVERSITY AND DIFFERENTIATION OF Aegiceras corniculatum POPULATIONS IN THREE DIFFERENT SALINITY |
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| LI Zhong-bao,LIN Peng,LIN Yi-ming.GENETIC DIVERSITY AND DIFFERENTIATION OF Aegiceras corniculatum POPULATIONS IN THREE DIFFERENT SALINITY[J].Marine Sciences,2001,25(2):4-7. |
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| Authors: | LI Zhong-bao LIN Peng LIN Yi-ming |
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| Abstract: | Genetic diversity and genetic differentiation of Aegiceras corniculatum populations in three different salinity were investigated using the assay of vertical slab polyacrylamide gel electrophoresis. The results showed that relatively high level of genetic diversity was maintained. Observed heterozygosities were 0.300, and expected heterozygosity were 0.215. The coefficient of genetic differentiation between populations was low, GST =0.101, which showed that 10.1% of total heterozygosity came from inter population. The mean genetic distance and mean genetic identity between populations were 0.045 and 0.955 respectively. Gene flow was smooth, Nm= 2.09. |
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| Keywords: | Allozyme Genetic diversity Genetic differentiation Different salinity Aegiceras corniculatum |
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