Changes in lipid classes of Drosophila melanogaster in response to selection for three stress traits

[Display omitted] •Heat increased DAG amounts.•Cold increased only PA amounts.•Dry changed many lipids. Laboratory selection on environmental stress traits is an evolutionary approach that is informative in the context of understanding stress adaptation. Here we characterize changes in a lipidome of...

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Bibliographic Details
Published in:Journal of insect physiology 2019-08, Vol.117, p.103890-103890, Article 103890
Main Authors: Ko, Li, Harshman, Lawrence, Hangartner, Sandra, Hoffmann, Ary, Kachman, Steve, Black, Paul
Format: Article
Language:English
Subjects:
Animals
Chill-coma
Desiccation
Drosophila melanogaster
Drosophila melanogaster - metabolism
Female
Heat
Laboratory selection
Lipid metabolome
Lipid profile
Lipidomics
Lipogenesis
Selection, Genetic
Stress resistance
Stress selection
Stress, Physiological
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Summary:[Display omitted] •Heat increased DAG amounts.•Cold increased only PA amounts.•Dry changed many lipids. Laboratory selection on environmental stress traits is an evolutionary approach that is informative in the context of understanding stress adaptation. Here we characterize changes in a lipidome of Drosophila melanogaster in lines selected for increased heat (elevated heat knockdown refractoriness), cold (decreased time to recover from chill-coma) and desiccation survival. Selection for desiccation resistance resulted in changes in multiple lipid classes used to characterize a lipidome. This included a decrease in triacylglycerols (TAGs) which is relevant to interpretation of storage lipid levels in previous D. melanogaster desiccation survival selection experiments. Chill-coma recovery rate selection was expected to show extensive changes in lipid classes, but only phosphatidic acids exhibited significant change. Selection for increased heat knockdown resistance resulted in a substantial change in the abundance of a class of lipids (diacylglycerols) which could play a role in mediating the heat shock response or result in an increase in neutral lipid mobilization.
ISSN:0022-1910
1879-1611
DOI:10.1016/j.jinsphys.2019.103890