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Mood-based disorders are one of the top-ten causes of disability worldwide. However the genes underpinning these disorders have proven to be remarkably elusive.

Different genes are involved during the adaptation of a domestic animal to life in the wild than when a wild animal becomes domesticated. This is the conclusion of a study led by a LiU researcher.

Five genes that affect sociality-related behaviour in chickens have been identified in a new study in Genetics. Several of the genes have previously been linked to nervous system function or behaviour, and now also assigned a role in sociality.

Some of the genetic differences that have arisen between domesticated chickens and their wild ancestors, the red junglefowl, are linked to epigenetic changes. Scientists at LiU have discovered a small number of “hotspots” in the DNA that control...