Determining the sterilization doses under hypoxia for the novel black pupae genetic sexing strain of Anastrepha fraterculus (Diptera, Tephritidae).

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dc.contributorPALOMA DELLA GIUSTINA, CENA-USP
dc.contributorTHIAGO MASTRANGELO, Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture
dc.contributorSOHEL AHMAD, Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture
dc.contributorGABRIEL MOURA MASCARIN, CNPMA
dc.contributorCARLOS CACERES, Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture.
dc.creatorDELLA GIUSTINA, P.
dc.creatorMASTRANGELO, T.
dc.creatorAHMAD, S.
dc.creatorMASCARIN, G. M.
dc.creatorCACERES, C.
dc.date2021-12-28T14:01:17Z
dc.date2021-12-28T14:01:17Z
dc.date2021-12-28
dc.date2021
dc.date.accessioned2026-07-07T05:08:50Z
dc.descriptionAbstract: A common strategy used to maintain sterile fly quality without sacrificing sterility is to irradiate the insects under an oxygen-reduced atmosphere. So far, sterilizing doses for the South American fruit fly Anastrepha fraterculus have only been determined under normoxia. Our study reports for the first time the dose-sterility response under hypoxia for two different A. fraterculus strains. The pupae were derived from a bisexual strain (a Brazilian-1 population) and a recently developed genetic sexing strain (GSS-89). Two hours prior to irradiation, pupae were transferred to sealed glass bottles and irradiated when oxygen concentration was below 3%. Four types of crosses with nonirradiated flies of the bisexual strain were set to assess sterility for each radiation dose. For males from both strains, Weibull dose?response curves between radiation doses and the proportion of egg hatch, egg-to-pupa recovery, and recovery of adults were determined. The GSS males revealed high sterility/mortality levels compared to males from the bisexual strain at doses < 40 Gy, but a dose of 74 Gy reduced egg hatch by 99% regardless of the male strain and was considered the sterilizing dose. The fertility of irradiated females was severely affected even at low doses under hypoxia.
dc.formatp. 1-12.
dc.identifierInsects, v. 12, n. 4, Article 308, 2021.
dc.identifier2075-4450
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1138446
dc.identifierhttps://doi.org/10.3390/insects12040308
dc.identifier.urihttp://hdl.handle.net/123456789/481973
dc.languageeng
dc.rightsopenAccess
dc.subjectLineage
dc.subjectSouth american fruit fly
dc.subjectMosca das Frutas
dc.subjectAnastrepha Fraterculus
dc.subjectEsterilização
dc.subjectSterile insect technique
dc.subjectIrradiation
dc.subjectFruit flies
dc.subjectOxygen
dc.titleDetermining the sterilization doses under hypoxia for the novel black pupae genetic sexing strain of Anastrepha fraterculus (Diptera, Tephritidae).
dc.typeArtigo de periódico

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