Generic Relationships of Zygopetalinae (Orchidaceae: Cymbidieae): Combined Molecular Evidence

Authors

  • Mark Whitten Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-7800, USA
  • Norris Williams Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-7800, USA
  • Robert Dressler Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-7800, USA
  • Günter Gerlach Botanischer Garten München Nymphenburg, Menzinger Str. 65. 80638 München, Germany
  • Franco Pupulin Jardín Botánico Lankester, Universidad de Costa Rica, P.O. Box 1031-7050 Cartago, Costa Rica

DOI:

https://doi.org/10.15517/lank.v5i2.19799

Keywords:

Aetheorhyncha, Cymbidieae, Daiotyla, Echinorhyncha, Euryblema, Ixyophora, Orchidaceae, Stenotyla, Zygopetalinae.

Abstract

The phylogenetic relationships of the orchid subtribe Zygopetalinae were evaluated using parsimony analyses of combined DNA sequence data of nuclear ITS 1 and 2 (including the 5.8s region and portions of the flanking 18s and 26s regions) and of the plastid trnL intron plus the trnL-F intergenic spacer and the plastid matK. Analyses of the three separate data sets produced highly congruent and moderately supported patterns, so these were combined in a single analysis. Combined analysis of 104 ingroup and two outgroup taxa produced highly resolved cladograms. Zygopetalinae comprises a Zygopetalum grade or clade (pseudobulbs prominent; leaves usually plicate, revolute); a Huntleya grade (pseudobulbs reduced or lacking; leaves conduplicate), including Dichaea, Huntleya, Chaubardia, and the Chondrorhyncha complex, plus Cryptarrhena that is weakly supported as sister to the Huntleya clade; and a Warrea grade. Chondrorhyncha s.l. is polyphyletic and six genera are here segregated as monophyletic taxa (see Key words). 

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Published

2015-06-24

How to Cite

Whitten, M., Williams, N., Dressler, R., Gerlach, G., & Pupulin, F. (2015). Generic Relationships of Zygopetalinae (Orchidaceae: Cymbidieae): Combined Molecular Evidence. Lankesteriana: International Journal on Orchidology, 5(2). https://doi.org/10.15517/lank.v5i2.19799

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