title: A study of canalization and developmental stability in the sternopleural bristle system of Drosophila melanogaster.
abstract: Among the explanations for minimizing the effects of extraneous variation has been canalization and developmental stability. However, there is little agreement as to whether these two processes reflect a common set of mechanisms. This confusion is inflated due to the lack of consensus as to a precise definition of canalization. In this study, canalization in the sternopleural bristle system is used to investigate the relationships between measures of canalization and developmental stability by comparing how a panel of naturally derived lines responds to both genetic and environmental perturbations. No evidence for a common mechanism between the different measures of canalization was observed. Furthermore, a hypothesis regarding a common mechanism for environmental and genetic canalization was tested, and no evidence was found to support it. However, there is evidence for a relationship between at least one form of canalization and developmental stability.
authors.affiliation: Department of Zoology, University of Toronto, Toronto, Ontario M5S 3G5, Canada. i_dworkin@ncsu.edu
authors.forename: Ian
authors.initials: I
authors.lastname: Dworkin
mesh_terms: D000704:Analysis of Variance; D000825:Animal Structures / Q000196:embryology*; D000818:Animals; D003433:Crosses, Genetic; D004331:Drosophila melanogaster / Q000196:embryology* / Q000235:genetics; D047108:Embryonic Development / Q000502:physiology*; D008954:Models, Biological; D009864:Ontario; D010641:Phenotype