Do phosphine resistance genes influence movement and dispersal under starvation?

Kaur, Ramandeep, Ebert, Paul R., Walter, Gimme H., Swain, Anthony J. and Schlipalius, David I. (2013) Do phosphine resistance genes influence movement and dispersal under starvation?. Journal of Economic Entomology, 106 5: 2259-2266. doi:10.1603/EC13234

Author Kaur, Ramandeep
Ebert, Paul R.
Walter, Gimme H.
Swain, Anthony J.
Schlipalius, David I.
Title Do phosphine resistance genes influence movement and dispersal under starvation?
Journal name Journal of Economic Entomology   Check publisher's open access policy
ISSN 0022-0493
Publication date 2013-10-01
Year available 2013
Sub-type Article (original research)
DOI 10.1603/EC13234
Volume 106
Issue 5
Start page 2259
End page 2266
Total pages 8
Place of publication Lanham, MD United States
Publisher Entomological Society of America
Language eng
Formatted abstract
Phosphine resistance alleles might be expected to negatively affect energy demanding activities such as walking and flying, because of the inverse relationship between phosphine resistance and respiration. We used an activity monitoring system to quantify walking of Rhyzopertha dominica (F.) and a flight chamber to estimate their propensity for flight initiation. No significant difference in the duration of walking was observed between the strongly resistant, weakly resistant, and susceptible strains of R. dominica we tested, and females walked significantly more than males regardless of genotype. The walking activity monitor revealed no pattern of movement across the day and no particular time of peak activity despite reports of peak activity of R. dominica and Tribolium castaneum (Herbst) under field conditions during dawn and dusk. Flight initiation was significantly higher for all strains at 28°C and 55% relative humidity than at 25, 30, 32, and 35°C in the first 24 h of placing beetles in the flight chamber. Food deprivation and genotype had no significant effect on flight initiation. Our results suggest that known resistance alleles in R. dominica do not affect insect mobility and should therefore not inhibit the dispersal of resistant insects in the field
Keyword Walking
Flight initiation
Insecticide Resistance
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Biological Sciences Publications
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