Related Experiment Video
Updated: Jun 5, 2026

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
Published on: February 3, 2023
The molecular basis of quantitative genetic variation in natural populations
1Thomas Mitchell-Olds is at the Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA.
Abstract:
DNA markers allow us to study quantitative trait loci (QTL) - the genes that control adaptation and quantitative variation. Experiments can map the genes responsible for quantitative variation and address the evolutionary and ecological significance of this variation. Recent studies suggest that major genes segregate within and among natural populations. It is now feasible to study the genes that cause morphological variation, life history trade-offs, heterosis and speciation. These methods can determine the role of epistasis and genotype-by-environment interaction in maintaining genetic variation. QTL mapping is an important tool used to address evolutionary and ecological questions of long-standing interest.
More Related Videos
10:08Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
07:15Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
Published on: January 16, 2019
Related Concept Videos
Mutation, Gene Flow, and Genetic Drift
What is Population Genetics?
Hardy-Weinberg Principle
Genetic Variation
Genes exist in different versions called alleles, which...
Principles of Pharmacogenetics: Types of Genetic Variants
Genetic Drift