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This should set the cat among the pigeons! <br><br>
<a href="http://www.springerlink.com/content/w48577568w5uh683/" eudora="autourl">
http://www.springerlink.com/content/w48577568w5uh683/</a><br><br>
Hybrid speciation in <i>Heliconius</i> butterflies? A review and critique
of the evidence <br>
Andrew V.Z. Brower<br>
Genetica online first, DOI: 10.1007/s10709-010-9530-4<br><br>
The evidence supporting the recent hypothesis of a homoploid hybrid
origin for the butterfly species Heliconius heurippa is evaluated. Data
from selective breeding experiments, mate-choice studies, and a wide
variety of DNA markers are reviewed, and an alternative hypothesis for
the origin of the species and its close relatives is proposed. A scenario
of occasional red wing-pattern mutations in peripheral populations of
Heliconius cydno with subsequent adaptive convergence towards sympatric
mimicry rings involving H. melpomene and H. erato is offered as an
alternative to the HHS hypothesis. Recent twists of this tale are
addressed in a postscript. <br><br>
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