| 甘草属核型的数量分析及其分类学意义 |
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| 引用本文： | 史刚荣.甘草属核型的数量分析及其分类学意义[J].淮北煤炭师范学院学报(自然科学版),2002,23(4):45-48. |
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| 作者姓名： | 史刚荣 |
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| 作者单位： | 淮北煤炭师范学院生物系,安徽,淮北,235000 |
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| 摘 要： | 在平均欧氏距离系数基础上,运用UPGMA法,对甘草属12个类群的核型资料进行了Q型聚类分析.根据分析结果,我们认为依据荚果长短和曲直,将甘草属分为长果组和短果组,在一定程度上反映了各类群的亲缘和进化关系.由于核型在种内不同居群之间的分化有时比种间更显著,因而不应作为确定种的主要依据.
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| 关 键 词： | 甘草属 核型 Q型聚类分析 分类学 |
| 文章编号： | 1000-2227(2002)04-0045-04 |
| 修稿时间： | 2002年5月24日 |
Numerical Analysis for Karyotype of Genes Glycyrrhiza L. and Its Significance on Taxonomy |
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| SHI Gang-rong.Numerical Analysis for Karyotype of Genes Glycyrrhiza L. and Its Significance on Taxonomy[J].Journal of Huaibei Coal Industry Teachers College(Natural Science edition),2002,23(4):45-48. |
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| Authors: | SHI Gang-rong |
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| Abstract: | In this paper,based on average Eucli dean distance coefficient,using UPGMA,Q cluster analysis for karyotype of 12taxa in g enes glycyrrhiza L.have been conducted.According to the result,we proposed that the genes glycyrrhiza L.should be divided into two section s such as sect.Longileguminaris and sect.brevileguminaris depending on the length and winding d egree of the legume,and this method could reflec t the evolutionary relationship of s pecies in some way.However,karyotype analysis should not be regarded as the main characters in establishing a species,for its variation in different populations of a species is sometimes more notable than that in different species. |
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| Keywords: | glycyrrhiza L karyotype Q cluster analysis t axonomy |
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