PMID- 18854588 OWN - NLM STAT- MEDLINE DCOM- 20090327 LR - 20240316 IS - 0016-6731 (Print) IS - 0016-6731 (Linking) VI - 180 IP - 4 DP - 2008 Dec TI - Regulation of Caenorhabditis elegans male mate searching behavior by the nuclear receptor DAF-12. PG - 2111-22 LID - 10.1534/genetics.108.093773 [doi] AB - Coordination of animal behavior with reproductive status is often achieved through elaboration of hormones by the gonad. In the nematode Caenorhabditis elegans, adult males explore their environment to locate mates. Mate searching is regulated by presence of mates, nutritional status, and a signal from the gonad. Here we show that the gonadal signal acts via the nuclear receptor DAF-12, a protein known to regulate several C. elegans life-history traits. DAF-12 has both activational and organizational functions to stimulate exploratory behavior and acts downstream of the gonadal signal, outside of the gonad. DAF-12 acts upstream of sensory input from mating partners and physiological signals indicating nutritional status. Mate searching was rescued in germ-line ablated animals, but not if both germ line and somatic gonad were ablated, by a precursor of the DAF-12 ligand, dafachronic acid (DA). The results are interpreted to suggest that the germ line produces a DA precursor that is converted to DA outside of the germ line, possibly in the somatic gonad. As it does in other pathways in which it functions, in regulation of male mate searching behavior DAF-12 acts at a choice point between alternatives favoring reproduction (mate searching) vs. survival (remaining on food). FAU - Kleemann, Gunnar AU - Kleemann G AD - Department of Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA. FAU - Jia, Lingyun AU - Jia L FAU - Emmons, Scott W AU - Emmons SW LA - eng PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20081014 PL - United States TA - Genetics JT - Genetics JID - 0374636 RN - 0 (Caenorhabditis elegans Proteins) RN - 0 (DAF-12 protein, C elegans) RN - 0 (Receptors, Cytoplasmic and Nuclear) SB - IM MH - Animals MH - Caenorhabditis elegans/genetics/*physiology MH - Caenorhabditis elegans Proteins/*metabolism MH - Cell Nucleus/*metabolism MH - Female MH - Male MH - Neurons/metabolism MH - Receptors, Cytoplasmic and Nuclear/*metabolism MH - Reproduction MH - Sexual Behavior, Animal/*physiology MH - Signal Transduction PMC - PMC2600945 EDAT- 2008/10/16 09:00 MHDA- 2009/03/28 09:00 PMCR- 2009/03/01 CRDT- 2008/10/16 09:00 PHST- 2008/10/16 09:00 [entrez] PHST- 2008/10/16 09:00 [pubmed] PHST- 2009/03/28 09:00 [medline] PHST- 2009/03/01 00:00 [pmc-release] AID - genetics.108.093773 [pii] AID - gen18042111 [pii] AID - 10.1534/genetics.108.093773 [doi] PST - ppublish SO - Genetics. 2008 Dec;180(4):2111-22. doi: 10.1534/genetics.108.093773. Epub 2008 Oct 14.