ERC Consolidator Grant · 2024
Sexual adaptation across evolution: the neural basis of female sexual motivation
What are the molecular mechanisms that determine intra- and inter-species behavioral variation? We propose to address this key outstanding question in evolutionary neuroscience by exploring a striking example of adaptive evolution of female sexual behavior. Comparing two closely related nematode species that use different mating strategies, we discovered that while androdioecious (hermaphrodite-male) C. elegans hermaphrodites are indifferent to males, dioecious (female-male) C. afra females exhibit a pronounced sex drive, actively engaging in and initiating mating. Importantly, we found that under induced reproductive pressure, the passive hermaphrodites switch to female-like behavior,…
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