We won a BSF grant together with Jessica Purcell and Alan Brelsford from UC Riverside, and also in collaboration with the GAGA consortium. In this four-year project we will construct genomic maps (linkage maps) for ten formicine species. The same species will have a reference genome sequenced by GAGA. This will allow reconstructing the evolution of chromosomes along the phylogeny and the study of evolution of recombination rate variation along the genome. We will look at aspects of genome evolution related to the evolution of sociality, especially the evolution of social chromosome(s).