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Genetic Screens

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
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Updated: May 25, 2026

Maintenance of a Drosophila melanogaster Population Cage

Maintenance of a Drosophila melanogaster Population Cage

Published on: March 15, 2016

The Drosophila melanogaster Genetic Reference Panel.

Trudy F C Mackay¹, Stephen Richards, Eric A Stone

¹Department of Genetics, North Carolina State University, Raleigh, North Carolina 27695, USA. trudy_mackay@ncsu.edu

|February 10, 2012

Summary

The Drosophila melanogaster Genetic Reference Panel (DGRP) links genetic variation to traits. This resource reveals how genetic differences influence observable characteristics and evolutionary patterns in fruit flies.

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Last Updated: May 25, 2026

Maintenance of a Drosophila melanogaster Population Cage

Maintenance of a Drosophila melanogaster Population Cage

Published on: March 15, 2016

Assaying Blood Cell Populations of the Drosophila melanogaster Larva

Assaying Blood Cell Populations of the Drosophila melanogaster Larva

Published on: November 11, 2015

CRISPR-Based Modular Assembly for High-Throughput Construction of a UAS-cDNA/ORF Plasmid Library

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Published on: May 17, 2024

Area of Science:

Population Genomics
Quantitative Genetics
Evolutionary Biology

Background:

Understanding the link between genetic variation and phenotypic traits is crucial for biology.
Previous genotype-phenotype mapping efforts were limited by incomplete genetic data.
Evolutionary forces shaping species variation require detailed genetic insights.

Purpose of the Study:

To introduce the Drosophila melanogaster Genetic Reference Panel (DGRP) as a comprehensive resource.
To enable detailed population genomics and quantitative trait analysis in Drosophila.
To facilitate genotype-phenotype mapping for understanding trait variation.

Main Methods:

Development of the Drosophila melanogaster Genetic Reference Panel (DGRP) from a natural population.
Complete genome sequencing of inbred lines within the DGRP.
Population genomic analyses to identify patterns of variation and selection.

Main Results:

DGRP reveals reduced genetic polymorphism in centromeric autosomal and X chromosome regions.
Evidence for positive and negative selection, alongside rapid X chromosome evolution, was identified.
Numerous novel genetic variants, often at low frequency, significantly associate with quantitative traits and phenotypic variance.

Conclusions:

The DGRP is a powerful community resource for dissecting genotype-phenotype relationships.
It provides insights into the genetic architecture of quantitative traits and evolutionary processes.
The resource leverages the genetic tractability of Drosophila for advanced biological research.