It has been shown that actin genes exhibit distinct tissue and stage-specif
ic patterns of expression. We have cloned a new p-actin gene from the teleo
st zebrafish (Danio rerio), a well-established model for developmental stud
ies, and analysed its expression by Northern blot and in situ hybridization
studies. Our results suggest that in adult brain zebrafish, this new gene
is expressed during neuronal cell proliferation.