Homology and heterochrony: the evolutionary embryologist Gavin Rylands de Beer (1899-1972)

Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
Ingo Brigandt

Abstract

The evolutionary embryologist Gavin Rylands de Beer can be viewed as one of the forerunners of modern evolutionary developmental biology in that he posed crucial questions and proposed relevant answers about the causal relationship between ontogeny and phylogeny. In his developmental approach to the phylogenetic phenomenon of homology, he emphasized that homology of morphological structures is to be identified neither with the sameness of the underlying developmental processes nor with the homology of the genes that are involved in the development of the structures. De Beer's work on developmental evolution focused on the notion of heterochrony, arguing that paedomorphosis increases morphological evolvability and is thereby an important mode of evolution that accounts for the origin of many taxa, including higher taxa.

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Sep 26, 2003·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Ingo Brigandt
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Citations

Feb 14, 2009·Theory in Biosciences = Theorie in Den Biowissenschaften·Lennart OlssonOlaf Breidbach
Feb 26, 2009·Theory in Biosciences = Theorie in Den Biowissenschaften·Alan C Love
Mar 3, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Manfred Drack
Apr 30, 2015·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Christian ReißUwe Hoßfeld
Nov 23, 2016·Journal of Molecular Evolution·S Andrew Inkpen, W Ford Doolittle

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