Radiation dose fractionation and its potential hormetic effects on male Glossina palpalis gambiensis (Diptera: Glossinidae): a comparative study of reproductive and flight quality parameters.

IF 2.3 2区 医学 Q2 PARASITOLOGY Parasite Pub Date : 2024-01-01 Epub Date: 2024-02-08 DOI:10.1051/parasite/2024001
Bénéwendé Aristide Kaboré, Syeda Dua Taqi, Athumani Mkinga, Anibal E Morales Zambrana, Robert L Mach, Marc Jb Vreysen, Chantel J de Beer
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Abstract

One of the most critical factors for implementing the sterile insect technique for the management of tsetse is the production of large quantities of highly competitive sterile males in the field. Several factors may influence the biological quality of sterile males, but optimizing the irradiation protocols to limit unwanted somatic cell damage could improve male performance. This study evaluated the effect of fractionation of gamma radiation doses on the fertility and flight quality of male Glossina palpalis gambiensis. Induced sterility was assessed by mating irradiated males with virgin fertile females. Flight quality was assessed using a standard protocol. The male flies were irradiated as pupae on day 23-27 post larviposition with 110 Gy, either in a single dose or in fractionations of 10 + 100 Gy and 50 + 60 Gy separated by 1-, 2- and 3-day intervals or 55 + 55 Gy separated by 4-, 8-, and 24-hour intervals. All treatments induced more than 90% sterility in females mated with irradiated males, as compared with untreated males. No significant differences were found in emergence rate or flight propensity between fractionated and single radiation doses, nor between the types of fractionations. Overall, the 50(D0) + 60(D1) Gy dose showed slightly higher induced sterility, flight propensity, and survival of males under feeding regime. Dose fractionation resulted in only small improvements with respect to flight propensity and survival, and this should be traded off with the required increase in labor that dose fractionation entails, especially in larger control programs.

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辐射剂量分馏及其对雄性Glossina palpalis gambiensis (Diptera: Glossinidae)的潜在激素效应:生殖和飞行质量参数的比较研究。
采用昆虫不育技术管理采采蝇的最关键因素之一是在田间生产大量具有高度竞争力的不育雄虫。有几个因素可能会影响不育雄虫的生物学质量,但优化辐照方案以限制不必要的体细胞损伤可以提高雄虫的表现。本研究评估了伽马辐射剂量分馏对雄性冈比亚斑羚繁殖力和飞行质量的影响。通过让受辐照的雄性与原始可育雌性交配来评估诱导性不育。飞行品质采用标准方案进行评估。雄蝇在幼虫羽化后第23-27天以蛹为单位接受110 Gy辐照,辐照剂量可以是单剂量,也可以是间隔1、2和3天的10 + 100 Gy和50 + 60 Gy分剂量,或间隔4、8和24小时的55 + 55 Gy分剂量。与未受辐照的雄性相比,所有处理都会导致与受辐照雄性交配的雌性不育率超过 90%。分次辐射剂量与单次辐射剂量之间,以及不同分次辐射剂量之间,雌鼠的出壳率和飞行倾向均无明显差异。总体而言,50(D0) + 60(D1) Gy剂量的雄性诱导不育率、飞行倾向和喂养条件下的存活率略高。剂量分馏仅在飞行倾向和存活率方面带来了微小的改善,这应该与剂量分馏所需的劳动力增加相权衡,尤其是在大型控制项目中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Parasite
Parasite 医学-寄生虫学
CiteScore
5.50
自引率
6.90%
发文量
49
审稿时长
3 months
期刊介绍: Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools. All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
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