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Genetica

, Volume 123, Issue 1–2, pp 147–156 | Cite as

Back to the future: genetic correlations, adaptation and speciation

  • Sara Via
  • David J. Hawthorne
Article

Abstract

Genetic correlations can affect the course of phenotypic evolution. Although genetic correlations among traits are a common feature of quantitative genetic analyses, they have played a very minor role in recent linkage-map based analyses of the genetic architecture of quantitative traits. Here, we use our work on host-associated races in pea aphids to illustrate how quantitative trait locus (QTL) mapping can be used to test specific hypotheses about how genetic correlations may facilitate ecological specialization and speciation.

Keywords

ecological specialization ecological speciation genetic constraints genotype × environment interaction QTL mapping sympatric speciation tradeoffs 

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Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Department of BiologyUniversity of MarylandCollege ParkUSA
  2. 2.Department of entomologyUniversity of MarylandCollege ParkUSA

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