Abstract
Local adaptation and speciation proceed through the build-up of genetic differences between populations. Identifying the loci that are responsible, and understanding how they shape phenotypes and fitness, is a major challenge for empirical studies. In this talk, I will tell you about two distinct projects that provide some detailed insight. First, I will share some recently published work about the genetic basis of recent transition from egg-laying to live-bearing in intertidal snails from the genus Littorina. Second, I will show some unpublished results from a long-term study aiming to link genotype, phenotype and fitness in the snapdragon (Antirrhinum) hybrid zone. Throughout the talk, I’ll highlight some new methodological innovation, and will try and paint a picture about where I think the field of speciation genomics is headed.