Dryad
Published October 20, 2017 | Version v1
Dataset Open

Data from: A positive genetic correlation between hypoxia tolerance and heat tolerance supports a controversial theory of heat stress

Authors/Creators

  • 1. Arizona State University
  • 2. Midwestern University

Description

We used quantitative genetics to test a controversial theory of heat stress, in which animals overheat when the demand for oxygen exceeds the supply. This theory, referred to as oxygen- and capacity-limited thermal tolerance, predicts a positive genetic correlation between hypoxia tolerance and heat tolerance. We demonstrate the first genetic correlation of this kind in a model organism, Drosophila melanogaster. Genotypes more likely to fly under hypoxic stress (12% O2) were also more likely to fly under heat stress (39°C). This finding prompts new questions about mechanisms and limits of adaptation to heat stress.

Notes

Excel sheet with flight probabilities for isofemale lines under three treatments
line = ID for DPRG line; hypoxia25C = % flight at 25C and hypoxia; normoxia39C = % flight at 39C and normoxia; normoxia25C = % flight at 25C and normoxia
data for Dryad.xlsx

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Related works

Is cited by
10.1098/rsbl.2017.0309 (DOI)