Journal article

A multivariate test of evolutionary constraints for thermal tolerance in Drosophila melanogaster

BR Williams, B van Heerwaarden, DK Dowling, CM Sgro

JOURNAL OF EVOLUTIONARY BIOLOGY | WILEY | Published : 2012

Abstract

Exposure to extreme temperatures is increasingly likely to impose strong selection on many organisms in their natural environments. The ability of organisms to adapt to such selective pressures will be determined by patterns of genetic variation and covariation. Despite increasing interest in thermal adaptation, few studies have examined the extent to which the genetic covariance between traits might constrain thermal responses. Furthermore, it remains unknown whether sex-specific genetic architectures will constrain responses to climatic selection. We used a paternal half-sibling breeding design to examine whether sex-specific genetic architectures and genetic covariances between traits mig..

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University of Melbourne Researchers