| Title: | Genetic hitchhiking associated with life history divergence and colonization of North America in the European corn borer moth |
| Address: | "Department of Biology, Tufts University, 165 Packard Avenue, Medford, MA 02155, USA. erik.dopman@tufts.edu" |
| DOI: | 10.1007/s10709-010-9514-4 |
| ISSN/ISBN: | 1573-6857 (Electronic) 0016-6707 (Linking) |
| Abstract: | "A primary goal for evolutionary biology is to reveal the genetic basis for adaptive evolution and reproductive isolation. Using Z and E pheromone strains the European corn borer (ECB) moth, I address this problem through multilocus analyses of DNA polymorphism. I find that the locus Triose phosphate isomerase (Tpi) is a statistically significant outlier in coalescent simulations of demographic histories of population divergence, including strict allopatric isolation, restricted migration, secondary contact, and population growth or decline. This result corroborates a previous QTL study that identified the Tpi chromosomal region as a repository for gene(s) contributing to divergence in life history. Patterns of nucleotide polymorphism at Tpi suggest a recent selective sweep and genetic hitchhiking associated with colonization of North America from Europe ~200 generations ago. These results indicate that gene genealogies initially diverge during speciation because of selective sweeps, but differential introgression may play a role in the maintenance of differentiation for sympatric populations" |
| Keywords: | "Animals Europe Gene Flow Genes, Insect *Genetic Variation Moths/*genetics/*pathogenicity North America Phylogeny Polymorphism, Genetic Quantitative Trait Loci Triose-Phosphate Isomerase/genetics Zea mays/*parasitology;" |
| Notes: | "MedlineDopman, Erik B eng Research Support, U.S. Gov't, Non-P.H.S. Netherlands 2010/11/26 Genetica. 2011 May; 139(5):565-73. doi: 10.1007/s10709-010-9514-4. Epub 2010 Nov 21" |
