Patterns of amino acid evolution in the Drosophila ananassae chimeric gene, siren, parallel those of other Adh-derived chimeras.

摘要

siren1 and siren2 are novel alcohol dehydrogenase (Adh)-derived chimeric genes in the Drosophila bipectinata complex. D. ananassae, however, harbors a single homolog of these genes. Like other Adh-derived chimeric genes, siren evolved adaptively shortly after it was formed. These changes likely shifted the catalytic activity of siren.