A positive genetic correlation between hypoxia tolerance and heat tolerance supports a controversial theory of heat stress.
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ABSTRACT:
SUBMITTER: Teague C
PROVIDER: S-EPMC5719369 | biostudies-literature | 2017 Nov
REPOSITORIES: biostudies-literature
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A positive genetic correlation between hypoxia tolerance and heat tolerance supports a controversial theory of heat stress.
Teague Collin C Youngblood Jacob P JP Ragan Kinley K Angilletta Michael J MJ VandenBrooks John M JM
Biology letters 20171101 11
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, <i>Drosophila melanogaster</i> Genotypes more likely to fly under hypoxic stress (12% O<sub>2</sub>) were als ...[more]
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