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首页> 外文期刊>Systematic Botany >Phylogenetic Position of the Monotypic Genus Verbenoxylum (Verbenaceae) and New Combination Under Recordia
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Phylogenetic Position of the Monotypic Genus Verbenoxylum (Verbenaceae) and New Combination Under Recordia

机译：马鞭草单形属（马鞭草科）的系统发生位置和记录下的新组合。

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摘要

In spite of the recent studies on the phylogeny of Verbenaceae, the position of the monotypic Verbenoxylum, endemic to the Atlantic rainforest in southeastern Brazil, remains unsolved. Molecular data were here analyzed to infer the phylogenetic placement of this genus; furthermore morphological data was studied in order to examine traits that support relationships among taxa. Sequences of the plastid regions of ndhF gene and trnL-trnF intergenic spacer were analyzed to conduct phylogenetic studies with maximum parsimony, maximum likelihood, and Bayesian inference. Morphological traits that had been traditionally used to distinguish tribes within Verbenaceae, as well as those employed to characterize Verbenoxylum, were examined. Verbenoxylum is nested within the tribe Duranteae, sister to Recordia, a monotypic genus endemic to Bolivia, a placement never reported before. The morphological traits analyzed prove not to be useful to distinguish tribes but are important at lower taxonomic levels. Based on the sister relationship and morphological similarities between the genera Verbenoxylum and Recordia, we propose the inclusion of Verbenoxylum reitzii into Recordia, forming the new combination Recordia reitzii.
机译：尽管最近对马鞭草科的系统发育进行了研究，但尚未解决巴西东南部大西洋雨林特有的单型马鞭草的地位。在这里分析了分子数据以推断该属的系统发生位置。此外，还研究了形态数据，以研究支持类群之间关系的性状。分析了ndhF基因和trnL-trnF基因间隔区的质体区序列，以最大的简约性，最大似然性和贝叶斯推断进行了系统发育研究。检查了传统上用来区分马鞭草科中部落的形态特征以及用来表征马鞭草的特征。 Verbenoxylum嵌套在Duranteae部落内，该部落是Recordia的姐妹，Recordia是玻利维亚特有的单型属，以前从未报道过。被分析的形态特征被证明对区分部落没有帮助，但在较低的分类学水平上很重要。基于Verbenoxylum和Recordia属之间的姐妹关系和形态相似性，我们建议将Verbenoxylum reitzii纳入Recordia，形成新组合Recordia reitzii。

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