2mit, an intronic gene of Drosophila melanogaster timeless2, is involved in behavioral plasticity.

Background: Intronic genes represent ~6% of the total gene complement in Drosophila melanogaster and ~85% of them encode for proteins. We recently characterized the D. melanogaster timeless2 (tim2) gene, showing its active involvement in chromosomal stability and light synchronization of the adult circadian clock.