Theory in Biosciences

, Volume 124, Issue 2, pp 121–143

Homology and ontogeny: pattern and process in comparative developmental biology

Authors

    • Humboldt-Universität zu BerlinInstitut für Biologie/Vergleichende Zoologie
Article

DOI: 10.1007/BF02814480

Cite this article as:
Scholtz, G. Theory Biosci. (2005) 124: 121. doi:10.1007/BF02814480

Abstract

In this article the interface between development and homology is discussed. Development is here interpreted as a sequence of evolutionarily independent stages. Any approach stressing the importance of specific developmental stages is rejected. A homology definition is favoured which includes similarity and complexity serves as a test for homology. Complexity is seen as the possibility of subdividing a character into evolutionarily independent corresponding substructures. Topology as a test for homology is critically discussed because corresponding positions are not necessarily indicative of homology. Complexity can be used twofold for homology assessments of development: either stages or processes of development are homologised. These two approaches must not be conflated. This distinction leads to the conclusion that there is no ontogenetic homology “criterion”.

Keywords

Evolution Recapitulation Ontogenetic criterion Phylotypic stage Zootype

Copyright information

© Springer-Verlag 2005