Research
Biological fitness costs associated with the various permethrin resistance development statuses in Anopheles gambiae in Nigeria
Authors:
A. T. Ande,
University of Ilorin, Ilorin, NG
About A. T.
Entomological Unit, Department of Zoology
O. J. Adelaja ,
University of Ilorin, Ilorin, NG
About O. J.
Entomological Unit, Department of Zoology
A. V. Agada,
University of Ilorin, Ilorin, NG
About A. V.
Entomological Unit, Department of Zoology
O. I. Akanni,
University of Ilorin, Ilorin, NG
About O. I.
Entomological Unit, Department of Zoology
A. I. Omotayo
University of Ilorin, Ilorin, NG
About A. I.
Entomological Unit, Department of Zoology
Public Health and Epidemiology Department, Nigeria Institute of Medical Research, Yaba, Lagos
Abstract
Man, in a desperate bid to manage malaria-vectors, i.e., Anopheles gambiae s.l. (Diptera: Culicidae) has relentlessly relied on pyrethroid insecticides especially permethrin. Unfortunately, these mosquitoes have improved their survival with respect to this tactic which must have been associated with some fitness-costs. This study, therefore, evaluates the biological fitness-costs associated with permethrin-resistance development in An. gambiae s.l. in Kwara State, Nigeria. Susceptibility statuses of adult female An. gambiae s.l. populations collected from Oke-odo, Pipeline and Airport were established using World Health Organization Protocol. They were subsequently raised over three-generations and the fecundity, hatchability, development time for larvae, pupae and adult, adult emergence, the adult sex ratio was observed, noted, monitored and analysed using ANOVA (P<0.05). Permethrin-resistant, moderately-resistant and susceptible status were each observed in the An. gambiae s.l. populations of Oke-odo, pipeline and Airport, respectively. The biological fitness-costs showed that permethrin-resistant An. gambiae s.l. had reduced fecundity (F1=86.07%, F2=84.55% and F3=100%) and hatchability (F1=96.58%, F2=92.02% and F3=100%). Also, there were reduced larvae developmental-time (F1=35.71% and F2=42.86%), adult-emergence (F1=97.69%) and longevity (F1=46.39%) when compared with the susceptible population. Permethrin-resistance development in An. gambiae s.l. definitely comes with some biological fitness-costs that disadvantage its transmission potential and can be leveraged upon in vector-management.
How to Cite:
Ande, A.T., Adelaja, O.J., Agada, A.V., Akanni, O.I. and Omotayo, A.I., 2022. Biological fitness costs associated with the various permethrin resistance development statuses in Anopheles gambiae in Nigeria. Sri Lankan Journal of Biology, 7(1), pp.1–11. DOI: http://doi.org/10.4038/sljb.v7i1.73
Published on
25 Jan 2022.
Peer Reviewed
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