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Type: Journal article
Title: Molecular phylogeny of the benthic shallow-water octopuses (Cephalopoda: Octopodinae)
Author: Guzik, M.
Norman, M.
Crozier, R.
Citation: Molecular Phylogenetics and Evolution, 2005; 37(1):235-248
Publisher: Academic Press Inc Elsevier Science
Issue Date: 2005
ISSN: 1055-7903
Statement of
Michelle T. Guzik, Mark D. Norman and Ross H. Crozier
Abstract: Octopus has been regarded as a “catch all” genus, yet its monophyly is questionable and has been untested. We inferred a broad-scale phylogeny of the benthic shallow-water octopuses (subfamily Octopodinae) using amino acid sequences of two mitochondrial DNA genes: Cytochrome oxidase subunit III and Cytochrome b apoenzyme, and the nuclear DNA gene Elongation Factor-1. Sequence data were obtained from 26 Octopus species and from four related genera. Maximum likelihood and Bayesian approaches were implemented to estimate the phylogeny, and non-parametric bootstrapping was used to verify confidence for Bayesian topologies. Phylogenetic relationships between closely related species were generally well resolved, and groups delineated, but the genes did not resolve deep divergences well. The phylogenies indicated strongly that Octopus is not monophyletic, but several monophyletic groups were identified within the genus. It is therefore clear that octopodid systematics requires major revision.
Keywords: Animals
Peptide Elongation Factor 1
DNA, Mitochondrial
Genetic Markers
Likelihood Functions
Bayes Theorem
Evolution, Molecular
Amino Acid Sequence
Base Sequence
Description: Copyright © 2005 Elsevier Inc. All rights reserved.
DOI: 10.1016/j.ympev.2005.05.009
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Appears in Collections:Aurora harvest 6
Earth and Environmental Sciences publications
Environment Institute publications

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