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https://hdl.handle.net/1959.11/10137
Title: | Mitochondrial variation among Australian freshwater turtles (genus 'Myuchelys'), with special reference to the Endangered 'M. bellii' | Contributor(s): | Fielder, Darren (author); Vernes, Karl A (author) ; Alacs, Erika (author); Georges, Arthur (author) | Publication Date: | 2012 | Open Access: | Yes | DOI: | 10.3354/esr00417 | Handle Link: | https://hdl.handle.net/1959.11/10137 | Open Access Link: | https://doi.org/10.3354/esr00417 https://doi.org/10.3382/ps.2013-03783 |
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 phylogenetic 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. | Publication Type: | Journal Article | Source of Publication: | Endangered Species Research, 17(1), p. 63-71 | Publisher: | Inter-Research | Place of Publication: | Germany | ISSN: | 1613-4796 1863-5407 |
Fields of Research (FoR) 2008: | 060411 Population, Ecological and Evolutionary Genetics 050205 Environmental Management |
Fields of Research (FoR) 2020: | 310599 Genetics not elsewhere classified 410404 Environmental management |
Socio-Economic Objective (SEO) 2008: | 960807 Fresh, Ground and Surface Water Flora, Fauna and Biodiversity | Socio-Economic Objective (SEO) 2020: | 180303 Fresh, ground and surface water biodiversity | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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