Antennal Morphology and Localization of a Pheromone-Binding Protein of Lobesia botrana (Denis & Schiffermüller) (Lepidoptera: Tortricidae).
Neotrop Entomol
; 48(3): 422-432, 2019 Jun.
Article
in En
| MEDLINE
| ID: mdl-30414018
In the sensory system of insects, olfactory sensilla constitute important functional elements for discriminating odors. Therefore, we used light microscopy and scanning electron microscopy to investigate the morphology and distribution of sensilla in the antennae of Lobesia botrana (Denis & Schiffermüller). In addition, we studied the expression of the gene encoding for pheromone-binding protein 1 (LbotPBP1) by in situ hybridization. Lobesia botrana antennae are filiform and are subdivided into three segments: scape, pedicel, and flagellum. The number of flagellum and their overall length were significantly higher and longer in males than in females. Six morphological types of sensilla (trichodea, chaetica, coeloconica, auricillica, basiconica, and styloconica) were identified on the antennae of both sexes. Trichodea sensilla were the most abundant on the antennae of L. botrana, and three subtypes, discerned by their lengths, were observed. However, sensilla trichodea subtype III was only present in male antennae. Moreover, LbotPBP1 expression was restricted to this type of sensilla, thus confirming its olfactory role, specifically under the context of sexual pheromone perception.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pheromones
/
Carrier Proteins
/
Insect Proteins
/
Arthropod Antennae
/
Sensilla
/
Moths
Limits:
Animals
Language:
En
Journal:
Neotrop Entomol
Journal subject:
BIOLOGIA
Year:
2019
Document type:
Article
Affiliation country:
Chile
Country of publication:
Netherlands