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DamID-seq: Genome-wide Mapping of Protein-DNA Interactions by High Throughput Sequencing of Adenine-methylated DNA Fragments
09:14

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Published on: January 28, 2016

Gene-environment interactions at nucleotide resolution.

Justin Gerke1, Kim Lorenz, Shelina Ramnarine

  • 1Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, United States of America.

Plos Genetics
|October 14, 2010
PubMed
Summary
This summary is machine-generated.

Genetic and environmental factors significantly influence yeast sporulation efficiency. Complex interactions between quantitative trait nucleotides (QTN), genetic background, and environment determine phenotypic outcomes.

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Area of Science:

  • Genetics
  • Environmental Science
  • Yeast Biology

Background:

  • Phenotypic variation arises from gene-environment interactions.
  • Understanding these interactions is crucial for predicting trait expression.

Purpose of the Study:

  • To investigate genetic and environmental interactions at single nucleotide resolution.
  • To characterize the role of four quantitative trait nucleotides (QTN) in yeast sporulation efficiency.

Main Methods:

  • Created a yeast strain panel with all 32 combinations of 4 QTN genotypes in 2 backgrounds.
  • Measured sporulation efficiency across 8 controlled environments.

Main Results:

  • Sporulation efficiency variation is driven by QTN:environment, QTN:background, and environment:background interactions.
  • No consistent QTN:QTN interactions were observed; they were context-dependent.
  • Phenotypic impact of QTN alleles is not predictable from genotype alone.

Conclusions:

  • Gene-environment interactions are complex and context-specific.
  • QTN effects are inseparable from genetic background and environmental variation.
  • Predicting yeast sporulation requires considering multi-level interactions.