2008
DOI: 10.1111/j.1420-9101.2008.01525.x
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Molecular phylogeny and divergence dates for Australasian elapids and sea snakes (hydrophiinae): evidence from seven genes for rapid evolutionary radiations

Abstract: One of the most prolific radiations of venomous snakes, the Australo‐Melanesian Hydrophiinae includes ∼100 species of Australasian terrestrial elapids plus all ∼60 species of viviparous sea snakes. Here, we estimate hydrophiine relationships based on a large data set comprising 5800 bp drawn from seven genes (mitochondrial: ND4, cytb, 12S, 16S; nuclear: rag1, cmos, myh). These data were analysed using parsimony, likelihood and Bayesian methods to better resolve hydrophiine phylogeny and provide a timescale for… Show more

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Cited by 154 publications
(178 citation statements)
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“…The Hydrophiini, with 60 species in 19 genera, are the most diverse and widely distributed of all the lineages of marine snakes [20,77]. Unsurprisingly, sea snakes possess a number of morphological and biochemical adaptations to aquatic life [78].…”
Section: Discussionmentioning
confidence: 99%
“…The Hydrophiini, with 60 species in 19 genera, are the most diverse and widely distributed of all the lineages of marine snakes [20,77]. Unsurprisingly, sea snakes possess a number of morphological and biochemical adaptations to aquatic life [78].…”
Section: Discussionmentioning
confidence: 99%
“…The monophyly of the genus had been questioned due to the lack of clear morphological synapomorphies (e.g. Greer, 1997), but hemipenial morphology (Keogh, 1999) and a multilocus molecular phylogeny of Australasian elapids (Sanders et al, 2008) provided substantial evidence supporting the recognition of the genus.…”
Section: Introductionmentioning
confidence: 99%
“…Divergence times between representatives of major Gehyra lineages were estimated from the RAG1 data due to the availability of data on Genbank and previous studies with which to compare our estimated divergence dates (Gamble et al, 2010;Sanders et al, 2008) (Supplementary Appendix S1) using Bayesian inference implemented in BEAST v1.6.1 (Drummond and Rambaut, 2010). All non-Gehyra sequences were obtained from Genbank.…”
Section: Estimation Of Rates Of Evolution Within Gehyramentioning
confidence: 99%
“…Output was evaluated using TRACER v1.4.1 (Drummond and Rambaut, 2010) to confirm acceptable mixing, stationarity of the MCMC parameter sampling and adequate effective sample sizes (4500). Due to the lack of Gekkotan fossils, which can be placed with enough phylogenetic precision to act as molecular clock calibrations (Sanders et al, 2008;Oliver and Sanders, 2009;Gamble et al, 2010), a number of robust external fossil calibrations were used. Our chosen calibrations are similar to those of Sanders et al (2008) and are summarized in Table 2.…”
Section: Estimation Of Rates Of Evolution Within Gehyramentioning
confidence: 99%
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