Distinct protocerebral neuropils associated with attractive and aversive female-produced odorants in the male moth brain
Kymre, Jonas Hansen; Liu, Xiaolan; Ian, Elena; Berge, Christoffer Nerland; Wang, Guirong; Berg, Bente Gunnveig; Zhao, Xincheng; Chu, Xi
Peer reviewed, Journal article
Published version
Åpne
Permanent lenke
https://hdl.handle.net/11250/2784139Utgivelsesdato
2021Metadata
Vis full innførselSamlinger
- Institutt for psykologi [2886]
- Publikasjoner fra CRIStin - NTNU [37221]
Originalversjon
10.7554/eLife.65683Sammendrag
The pheromone system of heliothine moths is an optimal model for studying principles underlying higher-order olfactory processing. In Helicoverpa armigera, three male-specific glomeruli receive input about three female-produced signals, the primary pheromone component, serving as an attractant, and two minor constituents, serving a dual function, that is, attraction versus inhibition of attraction. From the antennal-lobe glomeruli, the information is conveyed to higher olfactory centers, including the lateral protocerebrum, via three main paths – of which the medial tract is the most prominent. In this study, we traced physiologically identified medial-tract projection neurons from each of the three male-specific glomeruli with the aim of mapping their terminal branches in the lateral protocerebrum. Our data suggest that the neurons’ widespread projections are organized according to behavioral significance, including a spatial separation of signals representing attraction versus inhibition – however, with a unique capacity of switching behavioral consequence based on the amount of the minor components.