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首页> 外文期刊>Flora >Taxonomic differences among closely related pines Pinus sylvestris, P-mugo, P-uncinata, P-rotundata and P-uliginosa as revealed in needle sclerenchyma cells
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Taxonomic differences among closely related pines Pinus sylvestris, P-mugo, P-uncinata, P-rotundata and P-uliginosa as revealed in needle sclerenchyma cells

机译：针状硬化细胞中揭示的密切相关的樟子松，樟脑木，樟脑木，扶轮藤和扁豆之间的分类差异

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The purpose of the present study was to test the taxonomic value of sclerenchyma in distinguishing Pinus sylvestris and P. mugo, P. uncinata, P. rotundata and P. uliginosa, all representing the subsection Sylvestres within the genus Pinus. Thirty-six samples were gathered in natural populations. Every sample was represented with 30 individuals, every individual with 10 brachyblasts. Three types of sclerenchymatic cells surrounding the resin canals and four between vascular bundles were distinguished. Relations among samples and taxa were verified using discriminant analysis and clustering based on Euclidean distances. The types of sclerenchymatic cells surrounding the resin canals and located between the vascular bundles differentiate the compared taxa when used as average frequencies but are extremely variable and do not allow the classification of every individual. The study demonstrated that the type of sclerenchymatic cells surrounding the resin canals and between the vascular bundles in needles could have an important taxonomic value in distinguishing the taxa of two-needle pines of the subsection Sylvestres in Europe at the population level. The distinguishing of individuals was difficult because of very high variation of sclerenchyma characters. (c) 2007 Elsevier GmbH. All rights reserved.
机译：本研究的目的是测试巩膜瘤在区分樟子松和美洲野mug，美洲扁。，轮状扁and和乌利希诺斯中的分类学价值，所有这些都代表了樟子松属的S节。在自然种群中收集了36个样本。每个样本代表30个个体，每个个体具有10个成胚细胞。区分了树脂管周围的三种类型的硬化细胞和血管束之间的四种。使用判别分析和基于欧几里德距离的聚类来验证样本和分类单元之间的关系。当用作平均频率时，树脂管周围的硬化细胞类型和位于血管束之间的硬化细胞类型可以区分所比较的分类单元，但是它们变化很大，并且不允许对每个人进行分类。研究表明，树脂管周围和针头中的血管束之间的硬化细胞类型在区分欧洲西尔维斯特节的两针松分类群方面可能具有重要的分类学价值。由于巩膜瘤性状的变化很大，因此很难区分个体。 （c）2007 Elsevier GmbH。版权所有。

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