Phylogenetic analysis among five medicinally significant Phyllanthus L. Species in Bangladesh based on taxonomic and molecular approach

Dhaka University Journal of Biological Sciences Pub Date : 2024-04-08 DOI:10.3329/dujbs.v33i1.72490

Md Shahidur Rahman, Md Abul Hassan, Syeda Sharmeen Sultana

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Abstract

A combination of taxonomical and molecular technique had done for authentic characterization of medicinally important five Phyllanthus species viz. P. acidus, P. emblica (small and large fruit form), P. niruri, P. reticulatus and P. urinaria. They were analyzed with several taxonomical parameters such as branching pattern, morphology of bark, leaves, flowers, fruits and seeds. A dichotomous bracketed key is created for easy identification of the species. RAPD analysis of five Phyllanthus species displayed that P. emblica and P. reticulatus were closely related whereas P. acidus and P. emblica were genetically distantly related. The genus Phyllanthus are diverse, as seen by the 71.68% polymorphism among the five studied species determined by RAPD analysis. The two forms (small and large fruit forms) of P. emblica showed similarity as well as dissimilarity in taxonomic and molecular features. Thus, a subtle revision is necessary in the taxonomical point of view to update their taxa. Dhaka Univ. J. Biol. Sci. 33(1): 121-131, 2024 (January)

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基于分类学和分子方法对孟加拉国五种药用植物进行系统发育分析

结合分类学和分子技术，对具有重要药用价值的五种 Phyllanthus 树种，即 P. acidus、P. emblica（小果型和大果型）、P. niruri、P. reticulatus 和 P. urinaria 进行了鉴定。对它们进行了分类学参数分析，如分枝模式、树皮形态、叶片、花、果实和种子。创建了一个二分括号钥匙，以方便识别物种。对五种 Phyllanthus 进行的 RAPD 分析表明，P. emblica 和 P. reticulatus 关系密切，而 P. acidus 和 P. emblica 在遗传学上关系疏远。通过 RAPD 分析，所研究的五个物种之间的多态性为 71.68%，由此可见，Phyllanthus 属植物种类繁多。在分类学和分子特征方面，两种形态（小果形态和大果形态）的冬青显示出相似性和不相似性。因此，有必要从分类学的角度对其进行细微的修订，以更新其分类群。33(1)：121-131, 2024 (January)

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Dhaka University Journal of Biological Sciences

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