A molecular phylogenetic study of ecological diversification in the Australian lizard genus Ctenophorus
Version of Record online: 30 NOV 2001
Copyright © 2001 Wiley-Liss, Inc.
Journal of Experimental Zoology
Volume 291, Issue 4, pages 339–353, 15 December 2001
How to Cite
Melville, J., Schulte, J. A. and Larson, A. (2001), A molecular phylogenetic study of ecological diversification in the Australian lizard genus Ctenophorus. J. Exp. Zool., 291: 339–353. doi: 10.1002/jez.1133
- Issue online: 26 DEC 2002
- Version of Record online: 30 NOV 2001
- Manuscript Accepted: 11 JUN 2001
- Manuscript Received: 7 FEB 2001
- National Science Foundation. Grant Number: DEB-9318642
- National Science Foundation. Grant Number: DEB-9726064
- National Science Foundation. Grant Number: DEB-9982736
- Australian Research Council. Grant Number: ARC00104045
We present phylogenetic analyses of the lizard genus Ctenophorus using 1,639 aligned positions of mitochondrial DNA sequences containing 799 parsimony-informative characters for samples of 22 species of Ctenophorus and 12 additional Australian agamid genera. Sequences from three protein-coding genes (ND1, ND2, and COI) and eight intervening tRNA genes are examined using both parsimony and maximum-likelihood analyses. Species of Ctenophorus form a monophyletic group with Rankinia adelaidensis, which we suggest placing in Ctenophorus. Ecological differentiation among species of Ctenophorus is most evident in the kinds of habitats used for shelter. Phylogenetic analyses suggest that the ancestral condition is to use burrows for shelter, and that habits of sheltering in rocks and shrubs/hummock grasses represent separately derived conditions. Ctenophorus appears to have undergone extensive cladogenesis approximately 10–12 million years ago, with all three major ecological modes being established at that time. J. Exp. Zool. (Mol. Dev. Evol.) 291:339–353, 2001. © 2001 Wiley-Liss, Inc.