Population genomics supports multiple hybrid zone origins of socially hybridogenetic lineages of Pogonomyrmex harvester ants.

Abstract excerpt

Reproductive division of labor in the social insects is typically determined by environmental cues; however, genetic effects on caste have been discovered in a growing set of ant taxa. An extreme form of genetic caste determination is "social hybridogenesis," in which co-occurring genetic lineages obligately interbreed to produce workers, whereas daughter queens are of pure-lineage ancestry. In this study, we...

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