Journal Article

Fitness costs in clothianidin-resistant population of the melon aphid, Aphis gossypii

Tariq, Kaleem, National Key Research and Development Program of China 2016YFD0200500, National Natural Science Foundation of China (NSFC) 31272077, National Center for Cool and Cold Water Aquaculture, ARS-USDA ; USDA-ARS : Agricultural Research Service, Song, Dunlun, China Agricultural University (CAU), University of Florida [Gainesville] (UF), Ullah, Farman, Gul, Hina, Institut Sophia Agrobiotech (ISA) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Côte d'Azur (UniCA), Gao, Xiwu, Abdul Wali Khan University, Desneux, Nicolas

2020

Overview

Clothianidin is a second-generation neonicotinoid insecticide, widely used against sap-sucking insect pest including melon aphid,Aphis gossypiiGlover (Hemiptera: Aphididae). This pest causes severe economic damage to Cucurbitaceae plants worldwide. In this study, we investigated clothianidin resistance development under continuous selection pressure. Moreover, the age-stage, two-sex life table approach was used to evaluate the impact of clothianidin resistance on the fitness ofA.gossypii. A clothianidin resistant strain (CT-R) with a 23.17-fold resistance level was developed from a susceptible strain (CT-S) after continuous selection for 24 generations. Life table results showed a significant reduction in the relative fitness (0.847) of CT-R strain compared to the CT-S strain ofA.gossypii. The developmental duration, oviposition days, total pre-oviposition period (TPOP), longevity, and fecundity of CT-R strain were found to be significantly lower when compared to CT-S strain. The demographic parameters, including the intrinsic rate of increase (r), finite rate of increase (lambda), net reproductive rate (R-0), and mean generation time (T) were also significantly decreased in CT-R strain compared to the CT-S strain. Both the reproductive and survival rates were affected by clothianidin resistance in CT-R strain compared with the CT-S strain ofA.gossypii. Overall, our results demonstrate that in-depth knowledge about the trade-off at play between resistance degree and fitness cost might be useful to design resistance management strategies againstA.gossypii.

• Publisher: CCSD,Public Library of Science,Public Library of Science (PLoS)
• Subject: Age / Aging - physiology / Analysis / Animals / Aphids / Aphids - drug effects / Aphids - genetics / Aphids - growth & development / Aphis gossypii / Bioassays / Biology and Life Sciences / Computers / Control / Costs / Cucumbers / Cucurbitaceae / Cucurbitaceae - parasitology / Diseases and pests / Entomology / Experiments / Fecundity / Female / Fertility / Fitness / Fitness (Genetics) / Genetic aspects / Genetic Fitness / Guanidines - toxicity / Impact resistance / Insecticide resistance / Insecticide Resistance - genetics / Insecticides / Insects / Laboratories / Life Cycle Stages - drug effects / Life expectancy / Life Sciences / Mortality / Neonicotinoid insecticides / Neonicotinoids - toxicity / Oviposition / Pest resistance / Pesticides / Pests / Population / Reproduction - drug effects / Reproductive fitness / Survival / Survival Analysis / Tables (data) / Testing / Thiazoles - toxicity
• ISBN: 0005723180000