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Genome-wide association in Drosophila identifies a role for Piezo and Proc-R in sleep latency
Journal article   Open access   Peer reviewed

Genome-wide association in Drosophila identifies a role for Piezo and Proc-R in sleep latency

Matthew N. Eiman, Shailesh Kumar, Yazmin L. Serrano Negron, Terry R. Tansey and Susan T. Harbison
Scientific reports, v 14(1), 260
02 Jan 2024
PMID: 38168575
url
https://doi.org/10.1038/s41598-023-50552-zView
Published, Version of Record (VoR) Open

Abstract

Multidisciplinary Sciences Science & Technology Science & Technology - Other Topics
Sleep latency, the amount of time that it takes an individual to fall asleep, is a key indicator of sleep need. Sleep latency varies considerably both among and within species and is heritable, but lacks a comprehensive description of its underlying genetic network. Here we conduct a genome-wide association study of sleep latency. Using previously collected sleep and activity data on a wild-derived population of flies, we calculate sleep latency, confirming significant, heritable genetic variation for this complex trait. We identify 520 polymorphisms in 248 genes contributing to variability in sleep latency. Tests of mutations in 23 candidate genes and additional putative pan-neuronal knockdown of 9 of them implicated CG44153, Piezo, Proc-R and Rbp6 in sleep latency. Two large-effect mutations in the genes Proc-R and Piezo were further confirmed via genetic rescue. This work greatly enhances our understanding of the genetic factors that influence variation in sleep latency.

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Collaboration types
Domestic collaboration
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Multidisciplinary Sciences
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