Comparison of functions of pheromone receptor repertoires in Helicoverpa armigera and Helicoverpa assulta using a Drosophila expression system

2021 ◽  
pp. 103702
Author(s):  
Hao Guo ◽  
Ling-Qiao Huang ◽  
Xin-Lin Gong ◽  
Chen-Zhu Wang
Keyword(s):  
Helicoverpa Armigera ◽  
Expression System ◽  
Helicoverpa Assulta ◽  
Pheromone Receptor ◽  
Helicoverpa Armígera

scholarly journals Comparative status of insecticide resistance in the Helicoverpa and Heliothis species (Lepidoptera: Noctuidae) of south India

1996 ◽  
Vol 86 (5) ◽  
pp. 525-531 ◽  
Author(s):  
Deepak R. Jadhav ◽  
Nigel J. Armes
Keyword(s):  
Helicoverpa Armigera ◽  
Light Trap ◽  
The Other ◽  
Helicoverpa Assulta ◽  
Datura Metel ◽  
Cropping Season ◽  
Wild Host ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae ◽  
Heliothis Peltigera

AbstractHelicoverpa armigera (Hübner), H. assulta Guenée and Heliothis peltigera (Denis & Schiffermüller) were collected as mixed populations from safflower and the wild host Datura metel, from Patancheru, Andhra Pradesh, India, in 1992 and 1993, and their toxicological responses to insecticides determined. Both Helicoverpa armigera strains were highly resistant to cypermethrin, fenvalerate, endosulfan and quinalphos insecticides, based on resistance ratios relative to laboratory reared susceptible strains. There was no evidence of resistance development in H. assulta and Heliothis peltigera to the same chemicals. Light trap data collected from 1974 to 1987 showed that Helicoverpa armigera was at least 100 × more abundant than the other two species over most of the cropping season. Peak catches of H. assulta and Heliothis peltigera were confined to defined times in the season, corresponding with the flowering and fruiting periods of their respective host plants; August-October for Helicoverpa assulta and November-December for Heliothis peltigera. Helicoverpa armigera on the other hand, because of its high polyphagy on commercial and wild hosts, was abundant between August and April. Resistance has not developed in H. assulta and Heliothis peltigera in southern India, probably because of their restricted host range, limiting exposure to insecticides.

A simple and reliable method for discriminating between Helicoverpa armigera and Helicoverpa assulta (Lepidoptera: Noctuidae)

2011 ◽  
Vol 18 (6) ◽  
pp. 629-634 ◽  
Author(s):  
Jia Chen ◽  
Yu-Chun Wu ◽  
Xin Chen ◽  
Ya-Jie Ji ◽  
De-Xing Zhang
Keyword(s):  
Helicoverpa Armigera ◽  
Reliable Method ◽  
Helicoverpa Assulta ◽  
Helicoverpa Armígera ◽  
Lepidoptera Noctuidae

scholarly journals Olfactory perception and behavioral effects of sex pheromone gland components in Helicoverpa armigera and Helicoverpa assulta

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Meng Xu ◽  
Hao Guo ◽  
Chao Hou ◽  
Han Wu ◽  
Ling-Qiao Huang ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Helicoverpa Armigera ◽  
Sympatric Species ◽  
Behavioral Effects ◽  
Pheromone Gland ◽  
Helicoverpa Assulta ◽  
Sex Pheromone Gland ◽  
Helicoverpa Armígera ◽  
Response Profiles

Abstract Two sympatric species Helicoverpa armigera and Helicoverpa assulta use (Z)-11-hexadecenal and (Z)-9-hexadecenal as sex pheromone components in reverse ratio. They also share several other pheromone gland components (PGCs). We present a comparative study on the olfactory coding mechanism and behavioral effects of these additional PGCs in pheromone communication of the two species using single sensillum recording, in situ hybridization, calcium imaging, and wind tunnel. We classify antennal sensilla types A, B and C into A, B1, B2, C1, C2 and C3 based on the response profiles, and identify the glomeruli responsible for antagonist detection in both species. The abundance of these sensilla types when compared with the number of OSNs expressing each of six pheromone receptors suggests that HarmOR13 and HassOR13 are expressed in OSNs housed within A type sensilla, HarmOR14b within B and C type sensilla, while HassOR6 and HassOR16 within some of C type sensilla. We find that for H. armigera, (Z)-11-hexadecenol and (Z)-11-hexadecenyl acetate act as behavioral antagonists. For H. assulta, instead, (Z)-11-hexadecenyl acetate acts as an agonist, while (Z)-9-hexadecenol, (Z)-11-hexadecenol and (Z)-9-hexadecenyl acetate are antagonists. The results provide an overall picture of intra- and interspecific olfactory and behavioral responses to all PGCs in two sister species.

scholarly journals An Orphan Pheromone Receptor Affects the Mating Behavior of Helicoverpa armigera

2020 ◽  
Vol 11 ◽  
Author(s):  
Song Cao ◽  
Tianyu Huang ◽  
Jie Shen ◽  
Yang Liu ◽  
Guirong Wang
Keyword(s):  
Mating Behavior ◽  
Helicoverpa Armigera ◽  
Pheromone Receptor ◽  
Helicoverpa Armígera

scholarly journals Comparative host selection responses of specialist (Helicoverpa assulta) and generalist (Helicoverpa armigera) moths in complex plant environments

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0171948 ◽  
Author(s):  
Wei-zheng Li ◽  
Xiao-hui Teng ◽  
Hong-fei Zhang ◽  
Ting Liu ◽  
Qiong Wang ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Host Selection ◽  
Helicoverpa Assulta ◽  
Selection Responses ◽  
Helicoverpa Armígera
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