Mitochondrial variation among Australian freshwater turtles (genus Myuchelys), with special reference to the Endangered M. bellii

Darren Fielder, Karl Vernes, Erika Alacs, Arthur Georges

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Identifying species and the relationships among them remains important for assessing biodiversity trends and is a critical focus for reversing global biodiversity loss. The saw-shelled turtles of Australia, in the genus Myuchelys, show cryptic diversity and include species that range from Endangered (M. bellii), through those that are locally abundant but extremely limited in distribution (M. georgesi and M. purvisi) to those that are common and widespread (M. latisternum). The Endangered M. bellii is restricted to 3 small isolated populations in the headwaters of the Murray-Darling basin, in the Border, Gwydir and Namoi tributaries. There is no evidence of strong differentiation among these 3 populations based on mitochondrial DNA (mtDNA) divergences; rather there is only a shallow genetic structure ranging from 0.1 to 0.3% divergence. The 3 restricted and small populations of the Endangered M. bellii face a number of threatening processes and require conservation management across state boundaries as a single biological species. The mtDNA phylogeny supports previous phylogenetic findings of a deep hylogenetic divergence between M. purvisi and M. georgesi (13.5% mtDNA) and the sister taxa relationship of M. latisternum and M. bellii. A notable exception was our finding that Emydura macquarii and M. georgesi are sister taxa inside the Myuchelys radiation.
    Original languageEnglish
    Pages (from-to)63-71
    Number of pages9
    JournalEndangered Species Research
    Volume17
    Issue number1
    DOIs
    Publication statusPublished - 2012

    Fingerprint

    turtle
    mitochondrial DNA
    divergence
    biodiversity
    isolated population
    conservation management
    headwater
    genetic structure
    tributary
    phylogeny
    phylogenetics
    basin

    Cite this

    @article{59b77c15fa3c48f9a763c745e19c31a5,
    title = "Mitochondrial variation among Australian freshwater turtles (genus Myuchelys), with special reference to the Endangered M. bellii",
    abstract = "Identifying species and the relationships among them remains important for assessing biodiversity trends and is a critical focus for reversing global biodiversity loss. The saw-shelled turtles of Australia, in the genus Myuchelys, show cryptic diversity and include species that range from Endangered (M. bellii), through those that are locally abundant but extremely limited in distribution (M. georgesi and M. purvisi) to those that are common and widespread (M. latisternum). The Endangered M. bellii is restricted to 3 small isolated populations in the headwaters of the Murray-Darling basin, in the Border, Gwydir and Namoi tributaries. There is no evidence of strong differentiation among these 3 populations based on mitochondrial DNA (mtDNA) divergences; rather there is only a shallow genetic structure ranging from 0.1 to 0.3{\%} divergence. The 3 restricted and small populations of the Endangered M. bellii face a number of threatening processes and require conservation management across state boundaries as a single biological species. The mtDNA phylogeny supports previous phylogenetic findings of a deep hylogenetic divergence between M. purvisi and M. georgesi (13.5{\%} mtDNA) and the sister taxa relationship of M. latisternum and M. bellii. A notable exception was our finding that Emydura macquarii and M. georgesi are sister taxa inside the Myuchelys radiation.",
    keywords = "Emydura macquarii, Myuchelys georgesi, Elseya, Chelidae, Freshwater turtles, Cryptic species.",
    author = "Darren Fielder and Karl Vernes and Erika Alacs and Arthur Georges",
    year = "2012",
    doi = "10.3354/esr00417",
    language = "English",
    volume = "17",
    pages = "63--71",
    journal = "Endangered Species Research",
    issn = "1613-4796",
    publisher = "Inter-Research",
    number = "1",

    }

    Mitochondrial variation among Australian freshwater turtles (genus Myuchelys), with special reference to the Endangered M. bellii. / Fielder, Darren; Vernes, Karl; Alacs, Erika; Georges, Arthur.

    In: Endangered Species Research, Vol. 17, No. 1, 2012, p. 63-71.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Mitochondrial variation among Australian freshwater turtles (genus Myuchelys), with special reference to the Endangered M. bellii

    AU - Fielder, Darren

    AU - Vernes, Karl

    AU - Alacs, Erika

    AU - Georges, Arthur

    PY - 2012

    Y1 - 2012

    N2 - Identifying species and the relationships among them remains important for assessing biodiversity trends and is a critical focus for reversing global biodiversity loss. The saw-shelled turtles of Australia, in the genus Myuchelys, show cryptic diversity and include species that range from Endangered (M. bellii), through those that are locally abundant but extremely limited in distribution (M. georgesi and M. purvisi) to those that are common and widespread (M. latisternum). The Endangered M. bellii is restricted to 3 small isolated populations in the headwaters of the Murray-Darling basin, in the Border, Gwydir and Namoi tributaries. There is no evidence of strong differentiation among these 3 populations based on mitochondrial DNA (mtDNA) divergences; rather there is only a shallow genetic structure ranging from 0.1 to 0.3% divergence. The 3 restricted and small populations of the Endangered M. bellii face a number of threatening processes and require conservation management across state boundaries as a single biological species. The mtDNA phylogeny supports previous phylogenetic findings of a deep hylogenetic divergence between M. purvisi and M. georgesi (13.5% mtDNA) and the sister taxa relationship of M. latisternum and M. bellii. A notable exception was our finding that Emydura macquarii and M. georgesi are sister taxa inside the Myuchelys radiation.

    AB - Identifying species and the relationships among them remains important for assessing biodiversity trends and is a critical focus for reversing global biodiversity loss. The saw-shelled turtles of Australia, in the genus Myuchelys, show cryptic diversity and include species that range from Endangered (M. bellii), through those that are locally abundant but extremely limited in distribution (M. georgesi and M. purvisi) to those that are common and widespread (M. latisternum). The Endangered M. bellii is restricted to 3 small isolated populations in the headwaters of the Murray-Darling basin, in the Border, Gwydir and Namoi tributaries. There is no evidence of strong differentiation among these 3 populations based on mitochondrial DNA (mtDNA) divergences; rather there is only a shallow genetic structure ranging from 0.1 to 0.3% divergence. The 3 restricted and small populations of the Endangered M. bellii face a number of threatening processes and require conservation management across state boundaries as a single biological species. The mtDNA phylogeny supports previous phylogenetic findings of a deep hylogenetic divergence between M. purvisi and M. georgesi (13.5% mtDNA) and the sister taxa relationship of M. latisternum and M. bellii. A notable exception was our finding that Emydura macquarii and M. georgesi are sister taxa inside the Myuchelys radiation.

    KW - Emydura macquarii

    KW - Myuchelys georgesi

    KW - Elseya

    KW - Chelidae

    KW - Freshwater turtles

    KW - Cryptic species.

    U2 - 10.3354/esr00417

    DO - 10.3354/esr00417

    M3 - Article

    VL - 17

    SP - 63

    EP - 71

    JO - Endangered Species Research

    JF - Endangered Species Research

    SN - 1613-4796

    IS - 1

    ER -