Article
Large punctuational contribution of speciation to evolutionary divergence at the molecular level.
Science (New York, N.Y.) - 6 Oct 2006
Pagel Mark, Venditti Chris, Meade Andrew
Abstract excerpt
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...
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