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首页> 外文期刊>Israel Journal of Plant Sciences >Interpopulation esterase variation in the genus Petrocoptis A. Braun(Caryophyllaceae)
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Interpopulation esterase variation in the genus Petrocoptis A. Braun(Caryophyllaceae)

机译：Petrocoptis A. Braun（Caryophyllaceae）属的种群间酯酶变异

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摘要

The electrophoretic patterns of alpha- and beta-isozyme esterases from seeds of 44 populations belonging to twelve Petrocoptis taxa were compared in order to clarify taxonomic relationships within the genus. Electrophoretic zymograms showed the presence of 20 electromorphs, which yield 24 alpha-esterase and 22 beta-esterase phenotypes. Most of the bands and the electrophoretic profiles were restricted to a few localities and taxa. Correlation between isozyme similarity and geographic distance among populations was not detected, as revealed by the Mantel test (r = 0.007; p = 0.5811), suggesting that there was no greater phenetic similarity among neighboring populations than among distant populations. Multivariate analysis of the data (Factorial Correspondence Analysis and Multidimensional Scaling) did not depict a consistent picture of the taxonomic relationships within the genus, probably due to the high intraspecific variability present in some taxa. Given this polymorphism within some Petrocoptis taxa, esterase isozymes do not provide exclusive markers for the different species. However, the data partly support the splitting of the genus into two broad allopatric groups.
机译：为了阐明属内的分类学关系，比较了来自12个Petrocoptis类群的44个种群的种子的α-和β-同工酶酯酶的电泳图谱。电泳酶谱图显示存在20种电形态，产生24种α-酯酶和22种β-酯酶表型。大多数带和电泳图谱仅限于少数地区和分类群。如Mantel检验所示，未检测到人群之间同工酶相似性与地理距离之间的相关性（r = 0.007; p = 0.5811），这表明邻近人群之间的表象相似性没有远处人群之间更大。数据的多变量分析（框架对应分析和多维标度）未描述属内分类学关系的一致图景，这可能是由于某些分类中存在较高的种内变异性所致。鉴于某些Petrocoptis类群中的这种多态性，酯酶同工酶不能提供不同物种的专有标记。但是，数据部分支持将属分为两个广泛的异菌组。

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