Sexual conflict over insecticide resistance

Upregulation of the cytochrome P450 gene Cyp6g1 confers resistance to a broad range of insecticides in Drosophila melanogaster. Some Cyp6g1 alleles are associated with large sex differences in insecticide resistance and sexually antagonistic effects on fitness in certain genetic backgrounds. I am investigating the prevalence of this intralocus sexual conflict, and exploring how the underlying genetic architecture might evolve to resolve it.

Sexual selection on wing colouration

The seemingly transparent wings of many insects actually display vivid structural colour when viewed against high contrast backgrounds. These colour patterns (wing interference patterns) may be involved in mate choice and species recognition, but we know very little about the evolutionary forces that shape them. I am investigating how wing interference patterns might evolve in response to sexual selection in Drosophila simulans.
 

Past work

  • Comparative genomics in the phytopathogenic bacterium Xanthomonas campestris
  • Intralocus sexual conflict over diet regulation in the decorated cricket Gryllodes sigillatus
  • Gene-environment interactions and signal reliability in the fruit fly Drosophila simulans