DGRPool, a web tool leveraging harmonized Drosophila Genetic Reference Panel phenotyping data for the study of...

Area of Science:

• Genetics
• Model Organisms
• Bioinformatics

Background:

• Genome-wide association studies (GWAS) are powerful for understanding complex traits but face challenges with environmental variability in humans.
• Drosophila melanogaster offers a controlled model for studying genetic and phenotypic variation.
• The Drosophila Genetic Reference Panel (DGRP) is a valuable resource, but its phenotyping data requires harmonization for optimal use.

Purpose of the Study:

• To create a centralized, harmonized database of Drosophila Genetic Reference Panel (DGRP) phenotyping data.
• To develop a web tool (DGRPool) for accessing and analyzing DGRP data.
• To facilitate genome-wide (GWAS) and phenome-wide (PheWAS) association studies in Drosophila.

Main Methods:

• Aggregated phenotyping data from 135 DGRP studies, covering 1034 phenotypes.
• Developed the DGRPool web tool (dgrpool.epfl.ch) for data access and analysis.
• Utilized DGRPool for a proof-of-concept study on the longevity phenotype.

Main Results:

• DGRPool successfully integrated data from numerous DGRP studies into a common environment.
• Analysis of the longevity phenotype revealed known and novel correlations with traits like locomotor activity, starvation, desiccation, and oxidative stress resistance.
• The tool enables users to perform GWAS and PheWAS.

Conclusions:

• DGRPool provides a valuable, interactive resource for the scientific community.
• The tool has the potential to uncover new genetic and molecular insights into complex traits in Drosophila.
• Harmonized phenotyping data significantly enhances the utility of the DGRP for genetic research.