Speciation: Flowering time and the Wallace Effect

  title={Speciation: Flowering time and the Wallace Effect},
  author={Jeff Ollerton},
  • J. Ollerton
  • Published 3 August 2005
  • Biology, Medicine
  • Heredity
R eproductive isolation between groups of individuals would appear to be a sine qua non for the evolution of new species, without which gene flow between those individuals would maintain genetic coherence and prevent speciation. How this reproductive isolation is achieved has been the focus of considerable debate, and now a new study on page 198 of this issue, by Jonathan Silvertown and colleagues at the Open University and Rothamsted Research in the UK, provides strong evidence for a… 
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