Molecular phylogeny of Gavilea (Chloraeinae: Orchidaceae) using plastid and nuclear markers

M Amelia Chemisquy; Osvaldo Morrone

doi:10.1016/j.ympev.2011.11.026

Molecular phylogeny of Gavilea (Chloraeinae: Orchidaceae) using plastid and nuclear markers

Mol Phylogenet Evol. 2012 Mar;62(3):889-97. doi: 10.1016/j.ympev.2011.11.026. Epub 2011 Dec 8.

Authors

M Amelia Chemisquy¹, Osvaldo Morrone

Affiliation

¹ Instituto de Botánica Darwinion (CONICET, ANCEFN), Labardén 200, Casilla de Correo 22, B1642HYD San Isidro, Buenos Aires, Argentina. amelych80@yahoo.com.ar

PMID: 22178367
DOI: 10.1016/j.ympev.2011.11.026

Abstract

A phylogenetic analysis is provided for 70% of the representatives of genus Gavilea, as well as for several species of the remaining genera of subtribe Chloraeinae: Bipinnula, Chloraea and Geoblasta. Sequences from the plastid markers rpoC1, matK-trnK and atpB-rbcL and the nuclear marker ITS, were analyzed using Maximum Parsimony and Bayesian Inference. Monophyly of subtribe Chloraeinae was confirmed, as well as its position inside tribe Cranichideae. Neither Chloraea nor Bipinnula were recovered as monophyletic. Gavilea turned out polyphyletic, with Chloraeachica embedded in the genus while Gavilea supralabellata was related to Chloraea and might be a hybrid between both genera. None of the two sections of Gavilea were monophyletic, and the topologies obtained do not suggest a new division of the genus.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

DNA, Ribosomal Spacer / chemistry*
Orchidaceae / classification*
Orchidaceae / genetics*
Phylogeny*
Plastids / genetics*

Substances

DNA, Ribosomal Spacer