Northern blot analysis of the expression of the
two families of goldfish receptors. Poly(A)+ RNAs isolated
from goldfish (lanes 1) olfactory epithelium, (lanes 2) brain, (lanes
3) heart, (lanes 4) liver, (lanes 5) intestine, and (lanes 6) eggs were
fractionated on a 1% gel, blotted, and hybridized to a mixture of
radiolabeled probes prepared from (A) GFA2, GFA25, and GFA28
and (B) GFB1 and GFB8. β-Actin served as a control. The
positions (in kb) of markers are shown on the left.