Changes in lipid classes of Drosophila melanogaster in response to selection for three stress traits
Li Ko, Lawrence Harshman, Sandra Hangartner, Ary Hoffmann, Steve Kachman, Paul Black
JOURNAL OF INSECT PHYSIOLOGY | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2019
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 ..View full abstract
Awarded by Army Research Office grant, United States
We thank Anthony Zera (Biological Sciences) for intellectual stimulation in the context of the study of lipids, and for service on Li Ko's dissertation committee. Appreciation is conveyed to Thomas Helikar (Biochemistry) who provided valuable perspectives on lipids as a member of Li Ko's dissertation committee. A.A. Hoffmann was supported by a grant from the Science Industry Endowment fund and a Laureate Fellowship from the Australian Research Council, Australia. L.G. Harshman was supported by an Army Research Office grant (AR45071-LS-DPS), United States.