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Patterns of Variation in the Usage of Fatty Acid Chains among Classes of Ester and Ether Neutral Lipids and Phospholipids in the Queensland Fruit Fly. | LitMetric

AI Article Synopsis

  • Modern lipidomics can analyze insects' lipid structures to understand how they adapt to environments, but studies often focus on a few model species.
  • This research explores the lipid profile of adult male insects from a higher dipteran frugivore, identifying 421 lipids across multiple classes and detailing their carbon and double bond specifics.
  • The findings show notable patterns in lipid combinations and differences in chain characteristics, which may influence functionality through variations in lipid synthesis and enzyme activity, with genomic analysis revealing some evolutionary differences in relevant enzymes.

Article Abstract

Modern lipidomics has the power and sensitivity to elucidate the role of insects' lipidomes in their adaptations to the environment at a mechanistic molecular level. However, few lipidomic studies have yet been conducted on insects beyond model species such as . Here, we present the lipidome of adult males of another higher dipteran frugivore, . We describe 421 lipids across 15 classes of ester neutral lipids and phospholipids and ether neutral lipids and phospholipids. Most of the lipids are specified in terms of the carbon and double bond contents of each constituent hydrocarbon chain, and more ether lipids are specified to this degree than in any previous insect lipidomic analyses. Class-specific profiles of chain length and (un)saturation are broadly similar to those reported in , although we found fewer medium-length chains in ether lipids. The high level of chain specification in our dataset also revealed widespread non-random combinations of different chain types in several ester lipid classes, including deficits of combinations involving chains of the same carbon and double bond contents among four phospholipid classes and excesses of combinations of dissimilar chains in several classes. Large differences were also found in the length and double bond profiles of the acyl vs. alkyl or alkenyl chains of the ether lipids. Work on other organisms suggests some of the differences observed will be functionally consequential and mediated, at least in part, by differences in substrate specificity among enzymes in lipid synthesis and remodelling pathways. Interrogation of the genome showed it has comparable levels of diversity overall in these enzymes but with some gene gain/loss differences and considerable sequence divergence from .

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10672513PMC
http://dx.doi.org/10.3390/insects14110873DOI Listing

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