@ARTICLE{TreeBASE2Ref15362, author = {Yasuhiko Endo and B. H. Choi and Hiroyoshi Ohashi and Alfonso Delgado-Salinas}, title = {Phylogenetic Relationships of New World Vicia (Leguminosae) Inferred from nrDNA Internal Transcribed Spacer Sequences and Floral Characters}, year = {2008}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Systematic Botany}, volume = {33}, number = {2}, pages = {}, abstract = {The New World species (ca. 27 spp.) of Vicia (tribe Fabeae, family Leguminosae) were classified into four stylar type groups as follows: (1) a laterally compressed and evenly hairy stylar type (Le-type) group, (2) a dorsiventrally compressed and abaxially tufted hairy stylar type (Dabt-type) group, (3) a dorsiventrally compressed and evenly hairy stylar type (De-type) group, and (4) V. leucophaeawhich is characterized by its arcuate style with a dense ring of stylar hairs at a considerable distance from the stigma. In the present study, the stylar distinctions among the groups were confirmed by morphological and anatomical studies on the stylar characters of representative species of the groups. Then, the phylogenetic positions of these groups were assessed using molecular phylogenetic analysis based on sequences from the nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) region of the representative species. Consequently, the New World Le-type stylar group was revealed to be a sister group to the Old World Le-type stylar group. The New World Dabt-type stylar group and V. leucophaea were nesting with the Old World Dabt-type stylar group. These New World groups branched off from the other clades of the Old World species at relatively apical part of the present molecular phylogenetic tree. These findings were nested well within the Old World Vicia suggestinged that the New World Vicia species diversificationed occurred relatively recently during the diversification evolution of Vicia.} }

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