Genetic structure and phylogeography of platypuses revealed by mitochondrial DNA

Jaime Gongora, Amelia B. Swan, Amanda Y. Chong, Simon Y W Ho, Chandramaya S. Damayanti, Stephen Kolomyjec, Tom Grant, Emily Miller, David Blair, Elise Furlan, Nick Gust

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    Abstract

    The platypus Ornithorhynchus anatinus is an endemic monotreme species with a wide latitudinal distribution in eastern Australia, including Tasmania. Understanding 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 ~0.7-0.94Ma. 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.

    Original languageEnglish
    Pages (from-to)110-119
    Number of pages10
    JournalJournal of Zoology
    Volume286
    Issue number2
    DOIs
    Publication statusPublished - Feb 2012

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    Platypus
    phylogeography
    mitochondrial DNA
    genetic structure
    river basin
    divergence
    monotreme
    Tasmania
    ancestry
    gene flow
    cytochrome
    biodiversity
    phylogenetics
    cytochrome b
    haplotypes
    indigenous species
    biogeography
    nucleotide sequences
    phylogeny
    distribution

    Cite this

    Gongora, J., Swan, A. B., Chong, A. Y., Ho, S. Y. W., Damayanti, C. S., Kolomyjec, S., ... Gust, N. (2012). Genetic structure and phylogeography of platypuses revealed by mitochondrial DNA. Journal of Zoology, 286(2), 110-119. https://doi.org/10.1111/j.1469-7998.2011.00854.x
    Gongora, Jaime ; Swan, Amelia B. ; Chong, Amanda Y. ; Ho, Simon Y W ; Damayanti, Chandramaya S. ; Kolomyjec, Stephen ; Grant, Tom ; Miller, Emily ; Blair, David ; Furlan, Elise ; Gust, Nick. / Genetic structure and phylogeography of platypuses revealed by mitochondrial DNA. In: Journal of Zoology. 2012 ; Vol. 286, No. 2. pp. 110-119.
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    abstract = "The platypus Ornithorhynchus anatinus is an endemic monotreme species with a wide latitudinal distribution in eastern Australia, including Tasmania. Understanding 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 ~0.7-0.94Ma. 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.",
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    Gongora, J, Swan, AB, Chong, AY, Ho, SYW, Damayanti, CS, Kolomyjec, S, Grant, T, Miller, E, Blair, D, Furlan, E & Gust, N 2012, 'Genetic structure and phylogeography of platypuses revealed by mitochondrial DNA', Journal of Zoology, vol. 286, no. 2, pp. 110-119. https://doi.org/10.1111/j.1469-7998.2011.00854.x

    Genetic structure and phylogeography of platypuses revealed by mitochondrial DNA. / Gongora, Jaime; Swan, Amelia B.; Chong, Amanda Y.; Ho, Simon Y W; Damayanti, Chandramaya S.; Kolomyjec, Stephen; Grant, Tom; Miller, Emily; Blair, David; Furlan, Elise; Gust, Nick.

    In: Journal of Zoology, Vol. 286, No. 2, 02.2012, p. 110-119.

    Research output: Contribution to journalArticle

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    AU - Gust, Nick

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    N2 - The platypus Ornithorhynchus anatinus is an endemic monotreme species with a wide latitudinal distribution in eastern Australia, including Tasmania. Understanding 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 ~0.7-0.94Ma. 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.

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    Gongora J, Swan AB, Chong AY, Ho SYW, Damayanti CS, Kolomyjec S et al. Genetic structure and phylogeography of platypuses revealed by mitochondrial DNA. Journal of Zoology. 2012 Feb;286(2):110-119. https://doi.org/10.1111/j.1469-7998.2011.00854.x