Abstract
AbstractGenome-wide association studies have advanced our understanding of complex traits, but studying how a GWAS variant can affect a specific trait in the human population remains challenging due to environmental variability.Drosophila melanogasteris in this regard an excellent model organism for studying the relationship between genetic and phenotypic variation due to its simple handling, standardized growth conditions, low cost, and short lifespan. TheDrosophilaGenetic Reference Panel (DGRP) in particular has been a valuable tool for studying complex traits, but proper harmonization and indexing of DGRP phenotyping data is necessary to fully capitalize on this resource. To address this, we created a web tool calledDGRPool(dgrpool.epfl.ch), which aggregates phenotyping data of 935 phenotypes across 125 DGRP studies in a common environment. DGRPool enables users to download data and run various tools such as genome-wide association analyses (GWAS) and Phenome-WAS analyses. As a proof-of-concept, DGRPool was used to study the longevity phenotype and uncovered both established and unexpected correlations with other phenotypes such as locomotor activity, sleep duration, and oxidative stress resistance. DGRPool has the potential to facilitate new genetic and molecular insights of complex traits inDrosophilaand serve as a valuable, interactive tool for the scientific community.
Publisher
Cold Spring Harbor Laboratory