Diversification and Persistence at the Arid-Monsoonal Interface: Australia-Wide Biogeography of the Bynoe's Gecko (Heteronotia Binoei; Gekkonidae)

Fujita, Matthew K.; McGuire, Jimmy A.; Donnellan, Stephen C.; Moritz, Craig

doi:10.1111/j.1558-5646.2010.00993.x

Cited by 78 publications

(197 citation statements)

References 95 publications

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“…A number of studies of Australian herpetofauna, which have diversified over similar timescales to Gehyra, have revealed some contiguous patterns with those observed in this study. For example, the shift from a mesic phenotypic state to an arid phenotypic state as seen in this study is observed over very similar timescales to Heteronotia binoei in the same biogeographic region, although H. binoei shows multiple independent origins for the arid phenotype throughout the species complex, in contrast with Gehyra (Fujita et al, 2010). The patterns observed in Gehyra contrast those observed in Rynchoedura in which diversification was observed to follow drainage basins (Pepper et al, 2011)-a distribution not mirrored by Gehyra.…”

Section: Species Trees and Gene Tree Discordance In Gehyra M Sistrom contrasting

confidence: 52%

Evaluating evolutionary history in the face of high gene tree discordance in Australian Gehyra (Reptilia: Gekkonidae)

et al. 2014

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Species tree methods have provided improvements for estimating species relationships and the timing of diversification in recent radiations by allowing for gene tree discordance. Although gene tree discordance is often observed, most discordance is attributed to incomplete lineage sorting rather than other biological phenomena, and the causes of discordance are rarely investigated. We use species trees from multi-locus data to estimate the species relationships, evolutionary history and timing of diversification among Australian Gehyra-a group renowned for taxonomic uncertainty and showing a large degree of gene tree discordance. We find support for a recent Asian origin and two major clades: a tropically adapted clade and an arid adapted clade, with some exceptions, but no support for allopatric speciation driven by chromosomal rearrangement in the group. Bayesian concordance analysis revealed high gene tree discordance and comparisons of Robinson-Foulds distances showed that discordance between gene trees was significantly higher than that generated by topological uncertainty within each gene. Analysis of gene tree discordance and incomplete taxon sampling revealed that gene tree discordance was high whether terminal taxon or gene sampling was maximized, indicating discordance is due to biological processes, which may be important in contributing to gene tree discordance in many recently diversified organisms.

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Section: Species Trees and Gene Tree Discordance In Gehyra M Sistrom contrasting

confidence: 52%

Evaluating evolutionary history in the face of high gene tree discordance in Australian Gehyra (Reptilia: Gekkonidae)

et al. 2014

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“…(a) Population sampling Our analyses included 51 H. fasciatus specimens representing 10 populations (figure 1; electronic supplementary material, (FRIH, PRDX4;Fujita et al 2010). Intron 3 of PRDX4 is new to this study, and the primers used for amplification are (5 0 !…”

Section: Methodsmentioning

confidence: 99%

Bayesian species delimitation in West African forest geckos (Hemidactylus fasciatus)

2010

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Genealogical data are an important source of evidence for delimiting species, yet few statistical methods are available for calculating the probabilities associated with different species delimitations. Bayesian species delimitation uses reversible-jump Markov chain Monte Carlo (rjMCMC) in conjunction with a user-specified guide tree to estimate the posterior distribution for species delimitation models containing different numbers of species. We apply Bayesian species delimitation to investigate the speciation history of forest geckos (Hemidactylus fasciatus) from tropical West Africa using five nuclear loci (and mtDNA) for 51 specimens representing 10 populations. We find that species diversity in H. fasciatus is currently underestimated, and describe three new species to reflect the most conservative estimate for the number of species in this complex. We examine the impact of the guide tree, and the prior distributions on ancestral population sizes (u) and root age (t 0 ), on the posterior probabilities for species delimitation. Mis-specification of the guide tree or the prior distribution for u can result in strong support for models containing more species. We describe a new statistic for summarizing the posterior distribution of species delimitation models, called speciation probabilities, which summarize the posterior support for each speciation event on the starting guide tree.

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“…Climatic oscillations of the Pleistocene do not appear to have stimulated the same turnover of Australian biodiversity compared with earlier epochs, possibly because the continent already contained biota that were adapted to the alternating expansions and contractions of the arid and mesic zones. The ranges of ancestral mesic taxa expanded when the dry biomes contracted, and arid-adapted lineages would reclaim their range accordingly when the dry climate returned [38][39][40]. This provided biotic stability and a lack of open niches into which new species could radiate.…”

Section: (D) Diversification Of Wood-feeding and Soil-burrowing Lineagesmentioning

confidence: 99%

Multiple evolutionary origins of Australian soil-burrowing cockroaches driven by climate change in the Neogene

Tong

Rose

et al. 2016

Proc. R. Soc. B.

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Parallel evolution is the independent appearance of similar derived phenotypes from similar ancestral forms. It is of key importance in the debate over whether evolution is stochastic and unpredictable, or subject to constraints that limit available phenotypic options. Nevertheless, its occurrence has rarely been demonstrated above the species level. Climate change on the Australian landmass over the last approximately 20 Myr has provided conditions conducive to parallel evolution, as taxa at the edges of shrinking mesic habitats adapted to drier biomes. Here, we investigate the phylogeny and evolution of Australian soil-burrowing and wood-feeding blaberid cockroaches. Soil burrowers (subfamily Geoscapheinae) are found in relatively dry sclerophyllous and scrubland habits, whereas wood feeders (subfamily Panesthiinae) are found in rainforest and wet sclerophyll. We sequenced and analysed mitochondrial and nuclear markers from 142 specimens, and estimated the evolutionary time scale of the two subfamilies. We found evidence for the parallel evolution of soil-burrowing taxa from wood-feeding ancestors on up to nine occasions. These transitions appear to have been driven by periods of aridification during the Miocene and Pliocene across eastern Australia. Our results provide an illuminating example of climate-driven parallel evolution among species.

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Diversification and Persistence at the Arid-Monsoonal Interface: Australia-Wide Biogeography of the Bynoe's Gecko (Heteronotia Binoei; Gekkonidae)

Cited by 78 publications

References 95 publications

Evaluating evolutionary history in the face of high gene tree discordance in Australian Gehyra (Reptilia: Gekkonidae)

Evaluating evolutionary history in the face of high gene tree discordance in Australian Gehyra (Reptilia: Gekkonidae)

Bayesian species delimitation in West African forest geckos (Hemidactylus fasciatus)

Multiple evolutionary origins of Australian soil-burrowing cockroaches driven by climate change in the Neogene

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