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Mol Phylogenet Evol. 2014 Aug;77:216-22. doi: 10.1016/j.ympev.2014.04.005. Epub 2014 Apr 18.

A new phylogenetic analysis sheds new light on the relationships in the Calanthe alliance (Orchidaceae) in China.

Author information

  • 1College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and The Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, China; Orchid Conservation and Research Center of Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • 2Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and The Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, China.
  • 3South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
  • 4Department of Botany, Taiwan Forestry Research Institute, Taipei 10066, Taiwan.
  • 5Jardín Botánico Nacional, Apartado Postal 21-9, Santo Domingo, Dominican Republic.
  • 6Department of Biological Sciences, Florida International University, Miami, FL 33199, USA; Kushlan Tropical Science Institute, Fairchild Tropical Botanical Garden, Coral Gables, Miami, FL 33156, USA.
  • 7College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Orchid Conservation and Research Center of Fujian Agriculture and Forestry University, Fuzhou 350002, China.
  • 8South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China. Electronic address: xinfw@scib.ac.cn.
  • 9College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Shenzhen Key Laboratory for Orchid Conservation and Utilization, The National Orchid Conservation Center of China and The Orchid Conservation & Research Center of Shenzhen, Shenzhen 518114, China. Electronic address: liuzj@sinicaorchid.org.

Abstract

The taxonomy of the Calanthe alliance (Epidendroideae, Orchidaceae), consisting of Calanthe, Cephalantheropsis, and Phaius, has been difficult for orchidologists to understand because of the presence of common morphological features. In this study, in addition to morphological and geographical analyses, maximum parsimony and Bayesian inference analyses were performed based on nucleotide sequences of the nuclear internal transcribed spacer and cpDNA genes of 88 taxa representing the major clades of the Calanthe alliance in China. The results indicated that Cephalantheropsis is monophyletic, while both Phaius and Calanthe are polyphyletic. In Phaius, a total of three species, P. flavus, P. columnaris, and P. takeoi, were segregated to form a new genus, Paraphaius. In Calanthe, subgenus Preptanthe and sect. Styloglossum were both categorized as distinct genera from Calanthe. Our results also confirm that Calanthe delavayi and C. calanthoides are members of Calanthe. Previous studies assigned C. delavayi to Phaius and C. calanthoides to Ghiesbrechtia. Five sections, namely, Alpinocalanthe, Puberula, Ghiesbrechtia, Tricarinata, and Calanthe, three of which are new taxa, were recognized in Calanthe. Therefore, we propose that the Calanthe alliance is composed of six genera: Calanthe, Cephalantheropsis, Paraphaius, Phaius, Preptanthe and Styloglossum.

Copyright © 2014 Elsevier Inc. All rights reserved.

KEYWORDS:

Calanthe; Cephalantheropsis; Orchidaceae; Phaius; Phylogenetics; The Calanthe alliance

PMID:
24747128
[PubMed - indexed for MEDLINE]
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