Phylogeny and biogeography of the freshwater crayfish Euastacus (Decapoda : Parastacidae) based on nuclear and mitochondrial DNA

Shull, Heather C., Perez-Losada, Marcos, Blair, David, Sewell, Kim, Sinclair, Elizabeth A., Lawler, Susan, Ponniah, Mark and Crandall, Keith A. (2005) Phylogeny and biogeography of the freshwater crayfish Euastacus (Decapoda : Parastacidae) based on nuclear and mitochondrial DNA. Molecular Phylogenetics And Evolution, 37 1: 249-263. doi:10.1016/j.ympev.2005.04.034


Author Shull, Heather C.
Perez-Losada, Marcos
Blair, David
Sewell, Kim
Sinclair, Elizabeth A.
Lawler, Susan
Ponniah, Mark
Crandall, Keith A.
Title Phylogeny and biogeography of the freshwater crayfish Euastacus (Decapoda : Parastacidae) based on nuclear and mitochondrial DNA
Journal name Molecular Phylogenetics And Evolution   Check publisher's open access policy
ISSN 1055-7903
Publication date 2005
Sub-type Article (original research)
DOI 10.1016/j.ympev.2005.04.034
Volume 37
Issue 1
Start page 249
End page 263
Total pages 15
Place of publication San Diego, CA, USA
Publisher Academic Press Inc Elsevier Science
Collection year 2005
Language eng
Subject C1
270501 Animal Systematics, Taxonomy and Phylogeny
780105 Biological sciences
Abstract Euastacus crayfish are endemic to freshwater ecosystems of the eastern coast of Australia. While recent evolutionary studies have focused on a few of these species, here we provide a comprehensive phylogenetic estimate of relationships among the species within the genus. We sequenced three mitochondrial gene regions (COI, 16S, and 12S) and one nuclear region (28S) from 40 species of the genus Euastacus, as well as one undescribed species. Using these data, we estimated the phylogenetic relationships within the genus using maximum-likelihood, parsimony, and Bayesian Markov Chain Monte Carlo analyses. Using Bayes factors to test different model hypotheses, we found that the best phylogeny supports monophyletic groupings of all but two recognized species and suggests a widespread ancestor that diverged by vicariance. We also show that Eitastacus and Astacopsis are most likely monophyletic sister genera. We use the resulting phylogeny as a framework to test biogeographic hypotheses relating to the diversification of the genus. (c) 2005 Elsevier Inc. All rights reserved.
Keyword Biochemistry & Molecular Biology
Evolutionary Biology
Genetics & Heredity
Crayfish
Phylogeny
Biogeography
Evolution
Australia
Wet Tropics
Comparative Phylogeography
Nucleotide Substitution
Molecular Phylogeny
Bayesian-inference
Eastern Australia
Systematics
Models
Genera
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 05:31:31 EST