Speciation in Drosophila: from phenotypes to molecules.
Study of the genetics of speciation--and especially of the genetics of intrinsic postzygotic isolation-has enjoyed remarkable progress over the last 2 decades. Indeed progress has been so rapid that one might be tempted to ask if the genetics of postzygotic isolation is now wrapped up. Here we argue that the genetics of speciation is far from complete. In particular, we review 2 topics where recent work has revealed major surprises: 1) the role of meiotic drive in hybrid sterility and 2) the role of gene transposition in speciation. These surprises, and others like them, suggest that evolutionary biologists may understand less about the genetic basis of speciation than seemed likely a few years ago.
Orr
H Allen
HA
Department of Biology, University of Rochester, Rochester, NY 14627, USA. aorr@mail.rochester.edu
Masly
J P
JP
Phadnis
Nitin
N
D000818:Animals; D004251:DNA Transposable Elements; D004330:Drosophila / Q000737:chemistry* / Q000166:cytology / Q000235:genetics*; D049810:Genetic Speciation; D008540:Meiosis; D008957:Models, Genetic; D010641:Phenotype; D040641:Quantitative Trait Loci
D004251:DNA Transposable Elements