Co-option of a coordinate system defined by the EGFr and Dpp pathways in the evolution of a morphological novelty

Vreede, Barbara MI; Lynch, Jeremy A; Roth, Siegfried; Sucena, Élio

http://hdl.handle.net/10400.7/489

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Abstract(s)

Morphological innovation is an elusive and fascinating concept in evolutionary biology. A novel structure may open up an array of possibilities for adaptation, and thus is fundamental to the evolution of complex multicellular life. We use the respiratory appendages on the dorsal-anterior side of the Drosophila eggshell as a model system for morphological novelty. To study the co-option of genetic pathways in the evolution of this novelty we have compared oogenesis and eggshell patterning in Drosophila melanogaster with Ceratitis capitata, a dipteran whose eggs do not bear dorsal appendages.

Keywords

Evolutionary novelty Drosophila melanogaster Ceratitis capitata Oogenesis Pattern formation Dorsal appendages Genetic network

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http://hdl.handle.net/10400.7/489

Citation

Vreede et al. : Co-option of a coordinate system defined by the EGFr and Dpp pathways in the evolution of a morphological nov- elty. EvoDevo 2013 4 :7.