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Can genetic changes in opsins and photoreceptor expression explain color vision evolution and behavioral responses in butterflies? The lab studies gene duplication and functional diversification of visual pigment genes to link molecular sequence changes to physiology and behavior. Researchers map spatial expression of photoreceptors and colored filters in butterfly eyes and test consequences for predator avoidance and mate detection using behavioral and physiological assays. The group documents co‑evolution of UV receptors and UV‑yellow wing pigments in Heliconius via comparative genomics and spectral sensitivity measurements. They also investigate digestive enzyme expression in the proboscis to characterize feeding physiology.
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color visionsensory physiologymolecular evolutiongenomicsbutterfly vision
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