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dc.contributor.author Meade, Andrew
dc.contributor.author Venditti, Chris
dc.contributor.author Pagel, Mark
dc.date.accessioned 2008-12-04T12:30:26Z
dc.date.available 2008-12-04T12:30:26Z
dc.date.issued 2006-10-06
dc.identifier.citation Meade , A , Venditti , C & Pagel , M 2006 , ' Large punctuational contribution of speciation to evolutionary divergence at the molecular level ' Science , vol 314 , pp. 119-121 . , 10.1126/science.1129647 en
dc.identifier.issn 0036-8075
dc.identifier.other PURE: 94214
dc.identifier.other dspace: 2160/1345
dc.identifier.uri http://hdl.handle.net/2160/1345
dc.identifier.uri http://www.sciencemag.org/cgi/content/abstract/314/5796/119 en
dc.description Large punctuational contribution of speciation to evolutionary divergence at the molecular level. Mark Pagel,* Chris Venditti, Andrew Meade (2006). Science, 314 (5796) 119-121. RAE2008 en
dc.description.abstract A long-standing debate in evolutionary biology concerns whether species diverge gradually through time or by punctuational episodes at the time of speciation. We found that approximately 22% of substitutional changes at the DNA level can be attributed to punctuational evolution, and the remainder accumulates from background gradual divergence. Punctuational effects occur at more than twice the rate in plants and fungi than in animals, but the proportion of total divergence attributable to punctuational change does not vary among these groups. Punctuational changes cause departures from a clock-like tempo of evolution, suggesting that they should be accounted for in deriving dates from phylogenies. Punctuational episodes of evolution may play a larger role in promoting evolutionary divergence than has previously been appreciated. en
dc.format.extent 3 en
dc.language.iso eng
dc.relation.ispartof Science en
dc.title Large punctuational contribution of speciation to evolutionary divergence at the molecular level en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1126/science.1129647
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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