AI Article Synopsis

  • The prothoracic gland (PG) is key for studying steroid hormone production in insects, specifically through its roles in biosynthesis and regulation.
  • An analysis of transcriptomic data from PGs in two species, Drosophila melanogaster and Bombyx mori, reveals that nine genes serve as core components for hormone synthesis, with five being Halloween genes showing significant expression differences.
  • While PGs can serve as a model for understanding cholesterol transport and steroid biosynthesis, the diversity in gene expression across species suggests that a species-specific approach is necessary for more detailed analysis.

Article Abstract

Background: The prothoracic gland (PG), the principal steroidogenic organ of insects, has been proposed as a model for steroid hormone biosynthesis and regulation.

Results: To validate the robustness of the model, we present an analysis of accumulated transcriptomic data from PGs of two model species, Drosophila melanogaster and Bombyx mori. We identify that the common core components of the model in both species are encoded by nine genes. Five of these are Halloween genes whose expression differs substantially between the PGs of these species.

Conclusions: We conclude that the PGs can be a model for steroid hormone synthesis and regulation within the context of mitochondrial cholesterol transport and steroid biosynthesis but beyond these core mechanisms, gene expression in insect PGs is too diverse to fit in a context-specific model and should be analysed within a species-specific framework.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6045881PMC
http://dx.doi.org/10.1186/s12864-018-4896-2DOI Listing

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