PMID- 34462500 OWN - NLM STAT- MEDLINE DCOM- 20211109 LR - 20211109 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 11 IP - 1 DP - 2021 Aug 30 TI - A genetic screen for Drosophila social isolation mutants and analysis of sex pistol. PG - 17395 LID - 10.1038/s41598-021-96871-x [doi] LID - 17395 AB - Prolonged periods of forced social isolation is detrimental to well-being, yet we know little about which genes regulate susceptibility to its effects. In the fruit fly, Drosophila melanogaster, social isolation induces stark changes in behavior including increased aggression, locomotor activity, and resistance to ethanol sedation. To identify genes regulating sensitivity to isolation, I screened a collection of sixteen hundred P-element insertion lines for mutants with abnormal levels of all three isolation-induced behaviors. The screen identified three mutants whose affected genes are likely central to regulating the effects of isolation in flies. One mutant, sex pistol (sxp), became extremely aggressive and resistant to ethanol sedation when socially isolated. sxp also had a high level of male-male courtship. The mutation in sxp reduced the expression of two minor isoforms of the actin regulator hts (adducin), as well as mildly reducing expression of CalpA, a calcium-dependent protease. As a consequence, sxp also had increased expression of the insulin-like peptide, dILP5. Analysis of the social behavior of sxp suggests that these minor hts isoforms function to limit isolation-induced aggression, while chronically high levels of dILP5 increase male-male courtship. CI - (c) 2021. The Author(s). FAU - Eddison, Mark AU - Eddison M AD - Howard Hughes Medical Institute, Janelia Research Campus, 19700 Helix Drive, Ashburn, VA, 20147, USA. eddisonm@janelia.hhmi.org. LA - eng GR - HHMI/Howard Hughes Medical Institute/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210830 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Calmodulin-Binding Proteins) RN - 0 (Drosophila Proteins) RN - 0 (Ilp5 protein, Drosophila) RN - 0 (Insulins) RN - 0 (Protein Isoforms) RN - 0 (adducin) RN - EC 3.4.22.- (Calpain) RN - EC 3.4.22.- (calpain A, Drosophila) SB - IM MH - Aggression MH - Animals MH - Calmodulin-Binding Proteins/genetics/metabolism MH - Calpain/genetics/metabolism MH - Courtship MH - Down-Regulation MH - Drosophila/genetics/*physiology MH - Drosophila Proteins/*genetics/metabolism MH - Insulins/genetics/metabolism MH - Locomotion MH - Male MH - Mutation MH - Protein Isoforms/genetics/metabolism MH - *Social Isolation MH - Up-Regulation PMC - PMC8405609 COIS- The author declares no competing interests. EDAT- 2021/09/01 06:00 MHDA- 2021/11/10 06:00 PMCR- 2021/08/30 CRDT- 2021/08/31 06:22 PHST- 2021/01/31 00:00 [received] PHST- 2021/08/10 00:00 [accepted] PHST- 2021/08/31 06:22 [entrez] PHST- 2021/09/01 06:00 [pubmed] PHST- 2021/11/10 06:00 [medline] PHST- 2021/08/30 00:00 [pmc-release] AID - 10.1038/s41598-021-96871-x [pii] AID - 96871 [pii] AID - 10.1038/s41598-021-96871-x [doi] PST - epublish SO - Sci Rep. 2021 Aug 30;11(1):17395. doi: 10.1038/s41598-021-96871-x.