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首页> 外文期刊>Systematic Botany >Molecular Phylogeny and Morphological Analysis of Tetraglochin (Rosaceae: Rosoideae: Sanguisorbeae) and Recognition of the New Species T. andina
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Molecular Phylogeny and Morphological Analysis of Tetraglochin (Rosaceae: Rosoideae: Sanguisorbeae) and Recognition of the New Species T. andina

机译：四球蛋白（蔷薇科：蔷薇科：Sanguisorbeae）的分子系统发育和形态学分析以及对新物种安迪纳（T. andina）的识别

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摘要

Tetraglochin is distributed along the Andes from Peru to southern Argentina and central Chile. In order to test its monophyly and analyze relationships among species of this genus and allied genera, we conducted morphological studies and phylogenetic analyses using both nuclear (ITS) and cpDNA (trnL-F) sequences. As a result, Tetraglochin is supported as monophyletic, with the genus Margyricarpus as its sister group. Tetraglochin acanthocarpa and T. caespitosa are sister to the rest of the genus, which is grouped in two clades. One clade grows primarily distributed along the Central Andes, includes T. cristata, T. inermis, plus some specimens of T. ameghinoi, and has a coriaceous or papery and non translucent hypanthium. The other clade is mainly in the Southern Andes, contains T. alata and some specimens of T. ameghinoi, and has a membranous translucent hypanthium. Based on results obtained from morphological studies, molecular phylogenies, and species delimitation analyses, a new species T. andina, is proposed, segregated from T. ameghinoi. A key to identify all species herein recognized, and a map containing geographical distribution of them are provided, together with a description and illustration of the new species.
机译：四氯化碳分布在安第斯山脉，从秘鲁到阿根廷南部和智利中部。为了测试其单亲性并分析该属和同属属之间的​​关系，我们使用核（ITS）和cpDNA（trnL-F）序列进行了形态学研究和系统发育分析。结果，四叶草被认为是单系的，而马gy草属为其姊妹群。四叶毛果刺果和T. caespitosa是该属其余部分的姐妹，它们分为两个进化枝。一个进化枝主要分布在安第斯山脉中部，包括T. cristata，T。inermis以及一些T. ameghinoi标本，并且具有纤毛或纸质且不透明的玻璃托碗。另一个进化枝主要在安第斯山脉南部，包含T. alata和T. ameghinoi的一些标本，并且具有膜状半透明的pan。基于从形态学研究，分子系统发育和物种定界分析中获得的结果，提出了一种新的T. andina物种，与T. ameghinoi隔离。提供了识别此处识别的所有物种的关键，并提供了包含其地理分布的地图以及新物种的描述和说明。

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