[S27] Evolutionary implications of hybridization
Interactions between closely related taxa can have a range of evolutionary consequences, one of them is hybridization. This symposium is a merger of two proposals that consider the evolutionary implications of hybridization from two different perspectives. First, we are interested in genomic footprints of hybridization. To what extent the mechanisms of initial species divergence impact the genomic outcomes of hybridization? How does genomic architecture affect the likelihood of introgression vs. reinforcement? Can both be simultaneously occurring in different places of the genome? Second, we wish to better understand the consequences of hybridization in rapidly changing environments, as possibly superior hybrids may allow rapid adaptation. On the other hand, hybridization might result in disintegration of endemic lineages or increased invasiveness. Thus, we invite contributions that discuss: i) the genomic signature of past and present interaction events, to attempt to decipher the genomic mechanisms through which species can coexist in sympatry and: ii) the integration of comprehensive ecological data, involving multiple hybrid generations, to extend our knowledge about the adaptive or detrimental fitness consequences of hybridization driven by environmental change.
Organizers: Fabrice Eroukhmanoff, Glenn-Peter Sætre, Ole Seehausen, Matthias Stöck, Justyna Wolinska
Invited speakers: Nicola Nadeau, Mario Vallejo-Marin