@ARTICLE{TreeBASE2Ref21586,
author = {Guo-Qiang Zhang and Ke-Wei Liu and Li-Jun Chen and Xin-Ju Xiao and Jun-Wen Zhai and Li-Qiang Li and Jing Cai and Yu-Yun Hsiao and Wen-Hui Rao and Jie Huang and Xue-Yong Ma and Shih-Wen Chung and Lai-Qiang Huang and Wen-Chieh Tsai and Zhong-Jian Liu},
title = {A New Molecular Phylogeny and a New Genus, Pendulorchis, of the Aerides-Vanda Alliance (Orchidaceae: Epidendroideae)},
year = {2013},
keywords = { new combination; new genus; new molecular phylogeny; new species; Pendulorchis; Aerides?Vanda alliance },
doi = {10.1371/journal.pone.0060097},
url = {http://},
pmid = {},
journal = {PLoS ONE},
volume = {},
number = {},
pages = {},
abstract = {Background: The Aerides?Vanda alliance is a complex group in the subtribe Aeridinae (subfamily Epidendroideae, Orchidaceae). Some phylogenetic systems of this alliance have been previously proposed based on molecular and morphological analyses. However, several taxonomic problems within this alliance as well as between it and its allies remain unsolved.
Methodology/Principal Findings: We combinedITS, trnL-F, matK, psbA-trnH, atpI-atpH, and trnS-trnfM into a single dataset for the phylogenetic analysis of the Aerides?Vanda alliance. The strict consensus trees strongly support that the Aerides?Vanda alliance is monophyletic, and the 14 genera of this alliance can be grouped into the following clades with 14 subclades: 1. Aerides, comprising two subclades: Rhynchostylis and Aerides; 2. Ascocentropsis; 3. Papilionanthe; 4. Vanda, comprising five subclades: Neofinetia, Christensonia, Seidenfadenia, Ascocentrum, and Vanda-Trudelia, in which Vanda and Trudelia form a subclade; 5. Tsiorchis, comprising the three subclades Chenorchis, Tsiorchis, and two species of Ascocentrum; 6. Paraholcoglossum; and 7. Holcoglossum. Among the 14 genera, only Ascocentrum is triphyletic: two species of the Ascocentrum subclade, an independent subclade Ascocentrum subclade in the Tsiorchis clade; Ascocentrum subclade in the Vanda clade; and one species in the Holcoglossum clade. The Vanda and Trudelia species belong to the same subclade. The molecular conclusion is consistent with their morphological characters.
Conclusions: We elucidated the relationship among the 14 genera of the Aerides?Vanda alliance. Our phylogenetic results revealed that the Aerides?Vanda alliance is monophyletic, but it can be divided into 14 genera. The data proved that Ascocentrum is triphyletic. Plants with elongate-terete leaves and small flowers should be treated as a new genus, Pendulorchis. Saccolabium himalaicum (Ascocentrum himalaicum) should be transferred to Pendulorchis. Ascocentrum pumilum, endemic to Taiwan, should be transferred to Holcoglossum. A new combination, Holcoglossum pumilum, was also established. Trudelia should not be recognized as an independent genus. Two new species, Pendulorchis gaoligongense and Holcoglossum singchianum, were described as well.
}
}
Trees for Study 13699
Citation title:
"A New Molecular Phylogeny and a New Genus, Pendulorchis, of the Aerides-Vanda Alliance (Orchidaceae: Epidendroideae)".
Study name:
"A New Molecular Phylogeny and a New Genus, Pendulorchis, of the Aerides-Vanda Alliance (Orchidaceae: Epidendroideae)".
This study is part of submission 13699
(Status: Published).
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