Divergent V1R repertoires in five species: Amplification in rodents, decimation in primates, and a surprisingly small repertoire in dogs.

Abstract excerpt

The V1R gene family comprises one of two types of putative pheromone receptors expressed in the mammalian vomeronasal organ (VNO). We searched the most recent mouse, rat, dog, chimpanzee, and human genome sequence assemblies to compile a near-complete repertoire of V1R genes for each species. Dog, human, and chimpanzee have very few intact V1Rs (8, 2, and 0, respectively) compared to more than a hundred intact...

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