Sexual size dimorphisms are a common feature in living organisms. The broad horned flour beetle (Gnathocerus cornutus) exhibits a pronounced sexual size dimorphism of the mandibles. It has been shown that enlarged mandibles in males are used in regular fights among males. While this behaviour is well-studied, the developmental basis of exaggerated mandible growth in males is not understood to date.
We will apply comparative transcriptomics in combination with a comprehensive developmental characterization of mandible growth to identify key candidate genes involved in this process. Subsequently, candidate genes will be functionally tested via gene knock-down using RNA interference (RNAi).
Institute for Zoology and Anthropology
Department of Developmental Biology
Phone: +49 (0) 55139 28662