In: The Quarterly Review of Biology, 2005, vol. 80, no. 3, p. 287-316
Evolutionary genetics has recently made enormous progress in understanding how genetic variation maps into phenotypic variation. However, why some traits are phenotypically invariant despite apparent genetic and environmental changes has remained a major puzzle. In the 1940s, Conrad Hal Waddington coined the concept and term “canalization” to describe the robustness of phenotypes to...
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In: Molecular Ecology, 2012, p. -
The maintenance of species barriers in the face of gene flow is often thought to result from strong selection against intermediate genotypes, thereby preserving genetic differentiation. Most speciation genomic studies thus aim to identify exceptionally divergent loci between populations, but divergence will be affected by many processes other than reproductive isolation (RI) and speciation....
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In: Journal of Evolutionary Biology, 2007, vol. 20, no. 3, p. 881–891
The genetic basis of fitness reduction associated with inbreeding is still poorly understood. Here we use associations between allozyme genotypes and fitness to investigate the genetic basis of inbreeding depression in experimental outdoor populations of the water flea, Daphnia magna. In Daphnia, a phase of clonal reproduction follows hatching from sexually produced resting eggs,...
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