Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 65, Issue 1, Pages 136-148Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2012.05.033
Keywords
Arthrostylidiinae; Woody bamboo; Chloroplast markers; Didymogonyx; Guaduinae; Phylogeny
Funding
- Pontificia Universidad Catolica del Ecuador (Herbario QCA)
- National Science Foundation (NSF) [DEB-9218657]
- National Geographic Society
- American Bamboo Society
- NSF [DEB-0515712]
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We present the first multi-locus chloroplast phylogeny of Arthrostylidiinae, a subtribe of neotropical woody bamboos. The morphological diversity of Arthrostylidiinae makes its taxonomy difficult and prior molecular analyses of bamboos have lacked breadth of sampling within the subtribe, leaving internal relationships uncertain. We sampled 51 taxa, chosen to span the range of taxonomic diversity and morphology, and analyzed a combined chloroplast DNA dataset with six chloroplast regions: ndhF, trnD-trnT, trnC-rpoB, rps16-trnQ trnT-trnL, and rpl16. A consensus of maximum parsimony and Bayesian inference analyses reveals monophyly of the Arthrostylidiinae and four moderately supported lineages within it. Six previously recognized genera were monophyletic, three polyphyletic, and two monotypic; Rhipidocladum sect. Didymogonyx is here raised to generic status. When mapped onto our topology, many of the morphological characters show homoplasy. (C) 2012 Elsevier Inc. All rights reserved.
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