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- W4386468404 abstract "Behavioral diversity is critical for population fitness. Individual differences in risk-taking are observed across species, but underlying genetic mechanisms and conservation are largely unknown. We examined dark avoidance in larval zebrafish, a motivated behavior reflecting an approach-avoidance conflict. Brain-wide calcium imaging revealed significant neural activity differences between approach-inclined versus avoidance-inclined individuals. We used a population of ∼6,000 to perform the first genome-wide association study (GWAS) in zebrafish, which identified 34 genomic regions harboring many genes that are involved in synaptic transmission and human psychiatric diseases. We used CRISPR to study several causal genes: serotonin receptor-1b ( htr1b ), nitric oxide synthase-1 ( nos1 ), and stress-induced phosphoprotein-1 ( stip1 ). We further identified 52 conserved elements containing 66 GWAS significant variants. One encoded an exonic regulatory element that influenced tissue-specific nos1 expression. Together, these findings reveal new genetic loci and establish a powerful, scalable animal system to probe mechanisms underlying motivation, a critical dimension of psychiatric diseases." @default.
- W4386468404 created "2023-09-07" @default.
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- W4386468404 date "2023-09-06" @default.
- W4386468404 modified "2023-10-02" @default.
- W4386468404 title "Causal Genetic Loci for a Motivated Behavior Spectrum Harbor Psychiatric Risk Genes" @default.
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- W4386468404 doi "https://doi.org/10.1101/2023.09.06.556529" @default.
- W4386468404 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37732200" @default.
- W4386468404 hasPublicationYear "2023" @default.
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