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Diversification rates and phenotypic evolution in venomous snakes (Elapidae)

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dc.contributor.authorLee, M.
dc.contributor.authorSanders, K.
dc.contributor.authorKing, B.
dc.contributor.authorPalci, A.
dc.date.issued2016
dc.description.abstractThe relationship between rates of diversification and of body size change (a common proxy for phenotypic evolution) was investigated across Elapidae, the largest radiation of highly venomous snakes. Time-calibrated phylogenetic trees for 175 species of elapids (more than 50% of known taxa) were constructed using seven mitochondrial and nuclear genes. Analyses using these trees revealed no evidence for a link between speciation rates and changes in body size. Two clades (Hydrophis, Micrurus) show anomalously high rates of diversification within Elapidae, yet exhibit rates of body size evolution almost identical to the general elapid 'background' rate. Although correlations between speciation rates and rates of body size change exist in certain groups (e.g. ray-finned fishes, passerine birds), the two processes appear to be uncoupled in elapid snakes. There is also no detectable shift in diversification dynamics associated with the colonization of Australasia, which is surprising given that elapids appear to be the first clade of venomous snakes to reach the continent.
dc.description.statementofresponsibilityMichael S.Y. Lee, Kate L. Sanders, Benedict King, and Alessandro Palci
dc.identifier.citationRoyal Society Open Science, 2016; 3(1):150277-1-150277-11
dc.identifier.doi10.1098/rsos.150277
dc.identifier.issn2054-5703
dc.identifier.issn2054-5703
dc.identifier.orcidSanders, K. [0000-0002-9581-268X]
dc.identifier.orcidPalci, A. [0000-0002-9312-0559]
dc.identifier.urihttp://hdl.handle.net/2440/101555
dc.language.isoen
dc.publisherThe Royal Society
dc.relation.grantARC
dc.rights© 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
dc.source.urihttps://doi.org/10.1098/rsos.150277
dc.subjectMacroevolution; body size; speciation rates; phylogenetics; reptiles
dc.titleDiversification rates and phenotypic evolution in venomous snakes (Elapidae)
dc.typeJournal article
pubs.publication-statusPublished

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