Linoleic acid is the material for biosynthesis of sex attracting and blocking (postmating) pheromones in Nasonia vitripennis, it is synthesized from oleic acid by a male-biased fatty acid desaturase (SCD5a). In this study, we developed a specific antibody and further characterized the expression patterns of SCD5a in males at different mating stages by western blot. SCD5a was mainly expressed in male heads rather than in abdomens. Along with the aging process (from Day 1 to Day 3), SCD5a increased significantly. Compared with virgin males, mated males showed higher levels of SCD5a. Likewise, abdomen dipping frequency, during which males release attracting pheromone, increased with age and mating. Moreover, real-time quantitative PCR revealed that genes responsible for the first three steps of attracting pheromone biosynthesis were more highly expressed in head than in abdomen, but the final gene for transformation of attracting pheromone was more highly expressed in abdomen than in head. These results suggest that linoleic acid for biosynthesis of attracting pheromones may also originate from the head rather than only synthesized at the rectal vesicles.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/jez.b.23120 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Upregulation of olfactory-related neuropeptide transcripts in male Macrobrachium rosenbergii in correlation to pheromone perception from molting females.
Comp Biochem Physiol A Mol Integr Physiol
January 2025
Center of Excellence for Shrimp Molecular Biology and Biotechnology (CENTEX Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand; Nakhornsawan campus, Mahidol University, Nakhonsawan, Thailand. Electronic address:
Our previous studies revealed a mating attractant or possibly a pheromone released from molting reproductive mature female prawns, Macrobrachium rosenbergii, stimulates the expression of insulin-like androgenic gland hormones in a co-culture system. The released attractant is perceived by olfactory receptors with setae located on the short lateral antennules (slAn), which connect to the olfactory neuropil in the central nervous system (CNS) of male prawns. This neural signaling propagating through the CNS is mediated by at least four neuropeptides, namely neuropeptide F (NPF), short NPF (sNPF), tachykinin (TK), and allatostatin-A (ATS-A) whose transcripts have been detected in the present study.
View Article and Find Full Text PDFNeurological confirmation of periplanone-D exploitation as a primary sex pheromone and counteractions of other components in the smoky brown cockroach Periplaneta fuliginosa.
Cell Tissue Res
January 2025
Research Institute for Electronic Science, Hokkaido University, Sapporo, 060-0812, Japan.
The smoky brown cockroach, Periplaneta fuliginosa, is a peridomestic pest inhabiting broad regions of the world from temperate to subtropical zones. In common with other related species such as the American cockroach, Periplaneta americana, female-emitted sex pheromone components, named periplanones, are known to be key volatiles that elicit long-range attraction and courtship rituals in males. How periplanones are processed in the nervous system has been entirely unexplored in P.
View Article and Find Full Text PDFFurther Evidence That Female (Coleoptera: Cerambycidae) Utilizes Photo-Degradation to Produce Volatiles That Are Attractive to Adult Males.
Insects
November 2024
Forest Pest Methods Laboratory, USDA-APHIS-PPQ-S&T, 1398 West Truck Road, Buzzards Bay, MA 02542, USA.
The Asian longhorned beetle, (Coleoptera: Cerambycidae: Lamiinae), is a serious pest of over 43 species of hardwood trees in North America, China and Europe. The development of an effective lure and trap for monitoring has been hindered by the fact that mate finding involves a rather complex series of behaviors and responses to several chemical (and visual), cues. Adults (female-biased) locate a tree via host kairomones.
View Article and Find Full Text PDFFunctional Role of Odorant-Binding Proteins in Response to Sex Pheromone Component 8-14:Ac in (Busck).
Insects
November 2024
Shaanxi Province Key Laboratory of Jujube, College of Life Science, Yan'an University, Yan'an 716000, China.
The plum fruit moth (PFM), , and the oriental fruit moth (OFM), , are closely related fruit moth species that severely damage fruit trees in Rosaceae. Both species share common primary sex pheromone components 8-12:Ac and 8-12:Ac. The secondary sex pheromone components of PFMs consist of 8-12:OH, 8-14:Ac, and 10-14:Ac, while those of OFMs include 8-12:OH and 12:OH.
View Article and Find Full Text PDFOlfaction with legs-Spiders use wall-pore sensilla for pheromone detection.
Proc Natl Acad Sci U S A
January 2025
General and Systematic Zoology, Zoological Institute and Museum, University of Greifswald, Greifswald 17489, Germany.
The sense of smell is a central sensory modality of most terrestrial species. However, our knowledge of olfaction is based on vertebrates and insects. In contrast, little is known about the chemosensory world of spiders and nothing about how they perform olfaction despite their important ecological role.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!