Plio-Pleistocene diversification and biogeographic barriers in southern Australia reflected in the phylogeography of a widespread and common lizard species

Ansari, Mina; Cooper, Steven J.; Schwarz, Michael P.; Ebrahimi, Mehregan; Dolman, Gaynor; Reinberger, Leah; Saint, Kathleen M.; Donnellan, Stephen C.; Bull, C. Michael; Gardner, Michael G.

doi:10.1016/j.ympev.2018.12.014

Cited by 20 publications

(23 citation statements)

References 97 publications

(118 reference statements)

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“…The phylogeographical patterns we observe in G. dilatatus are broadly consistent with the evolutionary history of other Australian species in the east of the (semi-)arid zone, specifically lizards (James & Shine 2000;Rabosky et al 2014;Ansari et al 2018) and frogs (Schäuble & Moritz 2001). These taxa all display a general distinction between populations in southern Queensland and western New South Wales, Victoria and South Australia, similar to the split between our two major T clades A and B (Fig.…”

Section: Historical Biogeography Of Geoscapheus Dilatatussupporting

confidence: 84%

“…2014; Ansari et al . 2018) and frogs (Schäuble & Moritz 2001). These taxa all display a general distinction between populations in southern Queensland and western New South Wales, Victoria and South Australia, similar to the split between our two major T clades A and B (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…How has ancient environmental change in Australia impacted speciation processes? To date, the majority of studies that have addressed this question have focused on species either outside arid biomes or to the exclusion of eastern Australian arid and temperate semi-arid biomes (Chapple et al 2011;Eldridge et al 2014;Edwards et al 2017;Ansari et al 2018). In addition, studies examining taxa in these latter regions have focused almost entirely on vertebrates (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…2017; Ansari et al . 2018). In addition, studies examining taxa in these latter regions have focused almost entirely on vertebrates (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Molecular systematics and biogeography of an Australian soil‐burrowing cockroach with polymorphic males, Geoscapheus dilatatus (Blattodea: Blaberidae)

et al. 2021

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An iconic group of arid-adapted insects is the Australian soil-burrowing cockroaches (Blaberidae: Geoscapheinae), large, wingless insects that evolved burrowing behaviour and associated forms in parallel from wood feeding ancestors in the subfamily Panesthiinae. A particularly problematic taxon within the Geoscapheinae is Geoscapheus dilatatus (Saussure, 1864), which might represent a species complex and whose delimitation has been complicated for decades by the species harbouring polymorphic males. Males can be divided into two main morphs: individuals possessing horn-like protrusions on the anterior margin of the pronotum ('tuberculate') and those without these characters ('non-tuberculate'). A less common, third form consists of individuals that possess tubercles but are far larger than other tuberculate males and occur solely to the north of the species' distribution ('atypical' tuberculates). Here, we make use of whole mitochondrial genomes and nuclear ribosomal RNA data from individuals across the range of G. dilatatus to conduct the first phylogenetic analysis of this species to date. We recover all tuberculate males (including atypical forms) as monophyletic and the derived form of G. dilatatus, having evolved only once in this species, whereas non-tuberculate forms are paraphyletic. Fossil-calibrated molecular clock analysis revealed that the divergence between these two forms occurred during the late Miocene approximately 6.7 Mya, concurrent with an expansion of the continent's drier biomes. Environmental niche modelling suggests that tuberculate male forms are more climatically tolerant than their more restricted non-tuberculate counterparts, and both forms' predicted fundamental niches are strongly limited by rainfall. Three species delimitation analyses implemented here failed to consistently delimit G. dilatatus beyond a single species. Ultimately, population genetic approaches paired with additional sampling will be necessary to determine these findings more concretely, but at present, we do not consider the results presented here sufficient to delimit G. dilatatus based on morphological differences found in the species' polymorphic males alone.

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Section: Historical Biogeography Of Geoscapheus Dilatatussupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…2017; Ansari et al . 2018). In addition, studies examining taxa in these latter regions have focused almost entirely on vertebrates (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Molecular systematics and biogeography of an Australian soil‐burrowing cockroach with polymorphic males, Geoscapheus dilatatus (Blattodea: Blaberidae)

et al. 2021

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“…Alpers et al 2016 in wombats;Donnellan et al 2009 in birds). More examples from the growing body of literature relevant to these questions in southern Australia now include work on reptiles (Edwards et al 2015;Ansari et al 2019), mammals (Cooper et al 2000(Cooper et al , 2018Pestell et al 2008;Neaves et al 2012), fish (Donnellan et al 2015), invertebrates (Pons et al 2006;Rix et al 2017) and plants (Crisp and Cook 2007); birds have been especially studied (Joseph and Wilke 2006;Dolman and Joseph 2015;McElroy et al 2020;Norman et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Genomic data show little geographical structure across the naturally fragmented range of the purple-gaped honeyeater

Joseph

Campbell

Pedler³

et al. 2019

Aust. J. Zool.

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Using single nucleotide polymorphisms and mitochondrial DNA sequences we find some evidence of genetic structure within a widespread and naturally fragmented species, the purple-gaped honeyeater (Lichenostomus cratitius), of southern Australian mallee shrublands. The very earliest stages of differentiation either side of the Nullarbor Barrier may already have been arrested by gene flow, some of which may have been anthropogenically induced.

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Pleistocene divergence in the absence of gene flow among populations of a viviparous reptile with intraspecific variation in sex determination

Hill

Wapstra

Ezaz

et al. 2021

Ecology and Evolution

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Plio-Pleistocene diversification and biogeographic barriers in southern Australia reflected in the phylogeography of a widespread and common lizard species

Abstract: Pleistocene diversification and biogeographic barriers in southern Australia reflected in the phylogeography of a widespread and common lizard species. Molecular Phylogenetics and Evolution, 133, 107-119.

Cited by 20 publications

References 97 publications

Molecular systematics and biogeography of an Australian soil‐burrowing cockroach with polymorphic males, Geoscapheus dilatatus (Blattodea: Blaberidae)

Molecular systematics and biogeography of an Australian soil‐burrowing cockroach with polymorphic males, Geoscapheus dilatatus (Blattodea: Blaberidae)

Genomic data show little geographical structure across the naturally fragmented range of the purple-gaped honeyeater

Pleistocene divergence in the absence of gene flow among populations of a viviparous reptile with intraspecific variation in sex determination

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