A neuropeptide FF-related gene is expressed selectively in neurons of the terminal nerve in Danio rerio.
RFamides constitute a large family of neuromodulatory peptides. We have cloned a zebrafish gene, which is presumably a homologue to the mammalian PQRF subfamily of RFamides, and named it zfPQRF for its species and subfamily allocation. We report that in contrast to its mammalian counterparts zfPQRF is expressed in the olfactory bulb and the nucleus olfactoretinalis in the telencephalon, but absent in more caudal regions, including hypothalamus, brain stem and spinal cord. zfPQRF-expressing neurons originate in the vicinity of the olfactory placode and populate the nuclei of the terminal nerve during later development, as demonstrated by co-expression of zebrafish salmon-type gonadotropin releasing hormone, which was found to exclusively label terminal nerve neurons.
Institut für Genetik, Universität zu Köln, Zülpicher Strasse 47, 50674 Cologne, Germany.
Verena D
VD
Oehlmann
Henning
H
Korte
Christina
C
Sterner
Sigrun I
SI
Korsching
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D018076:DNA, Complementary / Q000235:genetics; D018507:Gene Expression Regulation, Developmental; D007987:Gonadotropin-Releasing Hormone / Q000235:genetics; D017403:In Situ Hybridization; D008969:Molecular Sequence Data; D009420:Nervous System / Q000196:embryology / Q000254:growth & development / Q000378:metabolism; D009474:Neurons / Q000378:metabolism*; D009842:Oligopeptides / Q000235:genetics*; D010802:Phylogeny; D015027:Zebrafish / Q000196:embryology / Q000235:genetics* / Q000254:growth & development*; D029961:Zebrafish Proteins / Q000235:genetics*
D018076:DNA, Complementary; D009842:Oligopeptides; D029961:Zebrafish Proteins; D007987:Gonadotropin-Releasing Hormone; C053651:phenylalanyl-leucyl-phenylalanyl-glutaminyl-prolyl-glutaminyl-arginyl-phenylalaninamide