KOR

e-Article

The Drosophila melanogaster Genetic Reference Panel.
Document Type
article
Source
Nature. 482(7384)
Subject
X Chromosome
Centromere
Telomere
Animals
Drosophila melanogaster
Starvation
Genomics
Genotype
Phenotype
Polymorphism
Single Nucleotide
Alleles
Quantitative Trait Loci
Genome-Wide Association Study
Selection
Genetic
Chromosomes
Insect
Chromosomes
Insect
Polymorphism
Single Nucleotide
Selection
Genetic
General Science & Technology
Language
Abstract
A major challenge of biology is understanding the relationship between molecular genetic variation and variation in quantitative traits, including fitness. This relationship determines our ability to predict phenotypes from genotypes and to understand how evolutionary forces shape variation within and between species. Previous efforts to dissect the genotype-phenotype map were based on incomplete genotypic information. Here, we describe the Drosophila melanogaster Genetic Reference Panel (DGRP), a community resource for analysis of population genomics and quantitative traits. The DGRP consists of fully sequenced inbred lines derived from a natural population. Population genomic analyses reveal reduced polymorphism in centromeric autosomal regions and the X chromosome, evidence for positive and negative selection, and rapid evolution of the X chromosome. Many variants in novel genes, most at low frequency, are associated with quantitative traits and explain a large fraction of the phenotypic variance. The DGRP facilitates genotype-phenotype mapping using the power of Drosophila genetics.