PMID- 28523227 OWN - NLM STAT- MEDLINE DCOM- 20181102 LR - 20210109 IS - 2162-3279 (Electronic) VI - 7 IP - 5 DP - 2017 May TI - Parental brain-derived neurotrophic factor genotype, child prosociality, and their interaction as predictors of parents' warmth. PG - e00685 LID - 10.1002/brb3.685 [doi] LID - e00685 AB - BACKGROUND: Parental warmth has been associated with various child behaviors, from effortful control to callous-unemotional traits. Factors that have been shown to affect parental warmth include heritability and child behavior. However, there is limited knowledge about which specific genes are involved, how they interact with child behavior, how they affect differential parenting, and how they affect fathers. We examined what affects paternal and maternal warmth by focusing on the child's prosocial behavior and parents' genotype, specifically a Valine to Methionine substitution at codon 66 in the brain-derived neurotrophic factor (BDNF) gene. METHODS: Data was available from a sample of 6.5 year-old twins, consisting of 369 mothers and 663 children and 255 fathers and 458 children. Self-reports were used to assess mothers' and fathers' warmth. Child prosociality was assessed with the other-parent report and experimental assessments. RESULTS: Mothers' warmth was not affected by their BDNF genotype, neither as a main effect nor in an interaction with child prosociality. Fathers with the Met allele scored higher on warmth. Additionally, there was a significant interaction between fathers' BDNF genotype and child prosociality. For fathers with the Met allele there was a positive association between warmth and child prosociality. Conversely, for fathers with the Val/Val genotype there was no association between warmth and child prosociality. Results were repeated longitudinally in a subsample with data on age 8-9 years. A direct within family analysis showed that fathers with the Met allele were more likely than Val/Val carriers to exhibit differential parenting toward twins who differed in their prosocial behavior. The same pattern of findings was found with mother-rated and experimentally assessed prosociality. CONCLUSIONS: These results shed light on the genetic and environmental underpinnings of paternal behavior and differential parenting. FAU - Avinun, Reut AU - Avinun R AUID- ORCID: 0000-0002-3281-1268 AD - Department of Psychology The Hebrew University of Jerusalem Jerusalem Israel. FAU - Knafo-Noam, Ariel AU - Knafo-Noam A AUID- ORCID: 0000-0003-0613-1960 AD - Department of Psychology The Hebrew University of Jerusalem Jerusalem Israel. LA - eng PT - Journal Article PT - Twin Study DEP - 20170404 PL - United States TA - Brain Behav JT - Brain and behavior JID - 101570837 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adult MH - Alleles MH - Brain-Derived Neurotrophic Factor/*genetics MH - Child MH - *Child Behavior/physiology/psychology MH - Empathy/*genetics MH - Fathers/*psychology MH - Female MH - Gene-Environment Interaction MH - Genotype MH - Humans MH - Male MH - Mothers/*psychology MH - Parent-Child Relations MH - Parenting/*psychology MH - Self Report MH - Social Behavior PMC - PMC5434190 OTO - NOTNLM OT - fathers OT - gene-environment interaction OT - parenting OT - prosocial behavior OT - the brain-derived neurotrophic factor gene OT - warmth EDAT- 2017/05/20 06:00 MHDA- 2018/11/06 06:00 PMCR- 2017/04/04 CRDT- 2017/05/20 06:00 PHST- 2017/02/13 00:00 [received] PHST- 2017/02/16 00:00 [accepted] PHST- 2017/05/20 06:00 [entrez] PHST- 2017/05/20 06:00 [pubmed] PHST- 2018/11/06 06:00 [medline] PHST- 2017/04/04 00:00 [pmc-release] AID - BRB3685 [pii] AID - 10.1002/brb3.685 [doi] PST - epublish SO - Brain Behav. 2017 Apr 4;7(5):e00685. doi: 10.1002/brb3.685. eCollection 2017 May.