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Genetic structure and phylogeograhy of platypuses revealed by mitochondrial DNA
Citation
Gongora, J and Swan, AB and Chong, AY and Ho, SYW and Damayanti, CS and Kolomyjec, S and Grant, T and Miller, E and Blair, D and Furlan, E and Gust, N, Genetic structure and phylogeograhy of platypuses revealed by mitochondrial DNA, Journal of Zoology, 286, (2) pp. 110-119. ISSN 0952-8369 (2012) [Refereed Article]
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The definitive published version is available online at: http://www3.interscience.wiley.com/
DOI: doi:10.1111/j.1469-7998.2011.00854.x
Abstract
The platypus Ornithorhynchus anatinus is an endemic monotreme species with a
wide latitudinal distribution in eastern Australia, including Tasmania. Under-
standing of the phylogeography within this species is very limited at present and
represents a gap in the documentation of Australia’s unique biodiversity. We
analysed mitochondrial DNA sequences (partial control region and complete
cytochrome b, including portions of flanking tRNAs) of 74 individuals from
across the distribution of the species. Phylogenetic analysis of the concatenated
sequences corroborated the primary split within the platypus, showing two major
clades: one from mainland Australia and the other from Tasmania/King Island.
Estimates of divergence times suggest that these clades last shared a common
mitochondrial ancestor ~0.7–0.94 Ma. Using an extended dataset of partial
control region sequences from 284 individuals, we found evidence of genetic
structure between river basins, primarily within mainland Australia, as well as an
additional divergent lineage in North-eastern Australia. Overall, few haplotypes
were shared between river basins. Analyses of molecular variance of the control
region sequences indicated low rates of gene flow and significant divergence,
particularly at the river basin and geographical area scales.
Item Details
Item Type: | Refereed Article |
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Keywords: | platypus, Ornithorhynchus anatinus, mitochondrial DNA, control region, cytochrome b |
Research Division: | Biological Sciences |
Research Group: | Biochemistry and cell biology |
Research Field: | Structural biology (incl. macromolecular modelling) |
Objective Division: | Environmental Management |
Objective Group: | Management of Antarctic and Southern Ocean environments |
Objective Field: | Assessment and management of Antarctic and Southern Ocean ecosystems |
UTAS Author: | Kolomyjec, S (Dr Stephen Kolomyjec) |
ID Code: | 73479 |
Year Published: | 2012 |
Web of Science® Times Cited: | 20 |
Deposited By: | Zoology |
Deposited On: | 2011-10-11 |
Last Modified: | 2013-04-15 |
Downloads: | 0 |
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