Inheritance, Fitness Cost, and Management of Lambda-Cyhalothrin Resistance in a Laboratory-Selected Strain of Ceratitis capitata (Wiedemann)
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Other documents of the author: Guillem Amat, Ana; López Errasquín, Elena; Sánchez, Lucas; Gonzalez-Guzman, Miguel; Ortego, Félix
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Title
Inheritance, Fitness Cost, and Management of Lambda-Cyhalothrin Resistance in a Laboratory-Selected Strain of Ceratitis capitata (Wiedemann)Author (s)
Date
2020-08-19Publisher
MDPIISSN
2075-4450Bibliographic citation
GUILLEM-AMAT, Ana, et al. Inheritance, Fitness Cost, and Management of Lambda-Cyhalothrin Resistance in a Laboratory-Selected Strain of Ceratitis capitata (Wiedemann). Insects, 2020, vol. 11, no 9, p. 551.Type
info:eu-repo/semantics/articlePublisher version
https://www.mdpi.com/2075-4450/11/9/551Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
The Mediterranean fruit fly (medfly), Ceratitis capitata, is considered one of
the most destructive and economically damaging pests of citrus and other fruit crops worldwide.
Current control practices in Spain rely ... [+]
The Mediterranean fruit fly (medfly), Ceratitis capitata, is considered one of
the most destructive and economically damaging pests of citrus and other fruit crops worldwide.
Current control practices in Spain rely on the use of insecticides (mainly lambda-cyhalothrin,
spinosad, and deltamethrin) and the release of sterile males. However, the sustainability of medfly
control programs is threatened by reports of resistance to lambda-cyhalothrin in field populations.
In this work, we used a laboratory-selected lambda-cyhalothrin-resistant strain to study key factors
required for devising effective insecticide resistance management strategies. Specifically, we have (1)
determined that the inheritance of resistance is autosomic (non-associated to the sexual chromosome),
completely dominant (a single copy of the gene is enough to confer resistance), and polygenic
(controlled by more than one gene); (2) observed that resistant individuals present fitness alterations
in regard to biological parameters (lower survival in the first growth stages, a slower developmental
time, and higher adults’ weight and longevity); and (3) shown under laboratory conditions that
the alternation of lambda-cyhalothrin with spinosad helped delay the development of resistance.
Taken together, our results indicate that it would be advisable to encourage the rotation of these
insecticides to manage the resistance problem. [-]
Is part of
Insects 2020, 11, 551Investigation project
This study was funded by the Spanish MINECO (grants AGL2016-76516-R and PID2019-104578RB-100). The Spanish MINECO also granted a predoc fellowship to A. Guillem-Amat (BES-C-2014-068937).Rights
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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