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RNAi-Induced Electrophysiological and Behavioral Changes Reveal two Pheromone Binding Proteins of Helicoverpa armigera Involved in the Perception of the Main Sex Pheromone Component Z11–16:Ald
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RNAi-Induced Electrophysiological and Behavioral Changes Reveal two Pheromone Binding Proteins of Helicoverpa armigera Involved in the Perception of the Main Sex Pheromone Component Z11–16:Ald
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Journal Article
RNAi-Induced Electrophysiological and Behavioral Changes Reveal two Pheromone Binding Proteins of Helicoverpa armigera Involved in the Perception of the Main Sex Pheromone Component Z11–16:Ald
2017
Overview
Pheromone binding proteins (PBPs) are thought to play key roles in insect sex pheromone recognition; however, there is little
in vivo
evidence to support this viewpoint in comparison to abundant biochemical data
in vitro.
In the present study, two noctuid
PBP
genes
HarmPBP1
and
HarmPBP2
of the serious agricultural pest,
Helicoverpa armigera
were selected to be knocked down by RNA interference, and then the changes in electrophysiological and behavioral responses of male mutants to their major sex pheromone component (
Z
)-11-hexadecenal (
Z
11–16:Ald) were recorded. There were no significant electrophysiological or behavioral changes of tested male moths in response to
Z
11–16:Ald when either single PBP gene was knocked down. However, decreased sensitivity of male moths in response to
Z
11–16:Ald was observed when both
HarmPBP1
and
HarmPBP2
genes were silenced. These results reveal that both HarmPBP1 and HarmPBP2 are required for the recognition of the main sex pheromone component
Z
11–16:Ald in
H. armigera
. Furthermore, these findings may help clarify physiological roles of moth PBPs in the sex pheromone recognition pathway, which in turn could facilitate pest control by exploring sex pheromone blocking agents.
Publisher
Springer US,Springer Nature B.V
Subject
/ Animals
/ Arthropod Antennae - drug effects
/ Arthropod Antennae - physiology
/ Behavior, Animal - drug effects
/ Behavior, Animal - physiology
/ Biomedical and Life Sciences
/ Ecology
/ Electrophysiological Phenomena
/ genes
/ Insect Proteins - metabolism
/ Insects
/ Male
/ males
/ moths
/ mutants
/ Pests
/ Proteins
/ RNA
