Cytological Attributes of Sperm Bundles Unique to F<sub>1</sub>Progeny of Irradiated Male Lepidoptera: Relevance to Sterile Insect Technique Programs

Carpenter, J. E.; Marti, O. G.; Wee, Suk‐Ling; Suckling, D. M.

doi:10.1653/024.092.0113

Cited by 21 publications

(26 citation statements)

References 20 publications

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“…Field release-recapture experiments with a live female as the lure can determine comparative male flight and sexual performance, but cannot readily distinguish whether a female moth mated with a reared and released moth or a wild male moth. It is possible to differentiate F 1 adult progeny of irradiated male and fertile males using a cytological technique (Carpenter et al, 2009;Wee et al, 2011), but this is time consuming, as it requires fresh specimens and histological analysis of the F 1 generation. Isotope analysis has been successfully used to distinguish different populations of the same insect species when the diet of one insect population has a different carbon or nitrogen isotope signal to the other insect population (Hood-Nowotny et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Attractiveness and competitiveness of irradiated light brown apple moths

Stringer

Sullivan

et al. 2013

Entomologia Exp Applicata

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The sterile insect technique (SIT) potentially provides a socially acceptable approach for insect eradication of new pest incursions. The light brown apple moth, Epiphyas postvittana (Walker) (Lepidoptera: Tortricidae), was discovered in Berkeley (CA, USA) in 2006, leading to an incursion response that included this technology. In this study, we assessed factors affecting mating success from a bisex release of irradiated moths: effects of radiation dose on male multiple mating, male flight competition, female sex pheromone titre and attractiveness of irradiated females to males, and identification of successful mating in vineyards of either irradiated or wild males (identified by isotope analysis of spermatophores from sentinel females). There was a significant negative relationship between male radiation dose and mating frequency. In head-to-head flights of irradiated males against non-irradiated males to a pheromone lure in a wind tunnel, irradiated males reached the lure first only 31% of the time. With increasing radiation dose, the production of the major sex pheromone component in females, (E)-11-tetradecenyl acetate, dropped, from 0.7 AE 0.1 ng per female in non-irradiated females to 0.2 AE 0.07 ng per female when irradiated at 300 Gy. Male catch was reduced to 11% of control females in traps containing females irradiated at 300 Gy. Isotope analysis of spermatophores found in the bursa copulatrix of females indicated that mating success of irradiated males inside the live (entry-only) traps containing virgin females was lower (13.1 AE 3.3%) than suggested by male catch (21.2 AE 3.8%) in pheromone traps, the current standard for assessing field competitiveness. Impacts of irradiation on male and female moth fitness should be taken into account to improve estimates of irradiated to wild male E. postvittana overflooding ratios needed for population suppression.

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Section: Introductionmentioning

confidence: 99%

Attractiveness and competitiveness of irradiated light brown apple moths

Stringer

Sullivan

et al. 2013

Entomologia Exp Applicata

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“…Additionally, transgenerational effects from radiation exposure have also been demonstrated in insects, particularly in the form of inherited sterilization (North & Holt, 1968, 1969; Bloem et al. , 1999; Carpenter et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of parental radiation exposure on developmental instability in grasshoppers

Beasley

Bonisoli‐Alquati

Welch

et al. 2012

J of Evolutionary Biology

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Mutagenic and epigenetic effects of environmental stressors and their transgenerational consequences are of interest to evolutionary biologists because they can amplify natural genetic variation. We studied the effect of parental exposure to radioactive contamination on offspring development in lesser marsh grasshopper Chorthippus albomarginatus. We used a geometric morphometric approach to measure fluctuating asymmetry (FA), wing shape and wing size. We measured time to sexual maturity to check whether parental exposure to radiation influenced offspring developmental trajectory and tested effects of radiation on hatching success and parental fecundity. Wings were larger in early maturing individuals born to parents from high radiation sites compared to early maturing individuals from low radiation sites. As time to sexual maturity increased, wing size decreased but more sharply in individuals from high radiation sites. Radiation exposure did not significantly affect FA or shape in wings nor did it significantly affect hatching success and fecundity. Overall, parental radiation exposure can adversely affect offspring development and fitness depending on developmental trajectories although the cause of this effect remains unclear. We suggest more direct measures of fitness and the inclusion of replication in future studies to help further our understanding of the relationship between developmental instability, fitness and environmental stress.

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“…Laboratory, semi-field and open field methods need to be aligned to help ensure overflooding ratios are adequate, or there is a risk of unwanted population growth despite assumed adequate insect release densities. Other new methods could be used to support field programs, including direct assessment of the frequency of F 1 sterile progeny by histology (Carpenter et al 2009) or other methods, although this may require living or freshlydead insects (Wee et al 2011). Female moth attractants are increasingly emerging as a population sampling and control tool (e.g.…”

Section: Operational Strategiesmentioning

confidence: 99%

Global range expansion of pest Lepidoptera requires socially acceptable solutions

et al. 2016

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Caterpillars of key moth pests can cause significant losses in cropping systems worldwide, and globalization is spreading such pests. Failure to control some species can jeopardise the economics of food production. A Global Eradication and Response Database (http://b3.net.nz/gerda) was reviewed on known government-level incursion response programs specific to invasive Lepidoptera. Geographic range expansion of Lepidoptera was evident from 144 incursion response programs targeting 28 species in 10 families. The countries involved in responses to Lepidoptera were USA (104), Australia (8), Canada (7), New Zealand (6), Italy (3), Mexico (2), with the remainder with one programme each (Brazil, Czech Republic, France, Hungary, and Spain). Most programs have been undertaken since the 1990’s. Control options exist for the long-term management of Lepidoptera, but most have issues of cost, efficacy or non-target impacts that reduce their acceptance. Pheromone-based technologies are increasingly available and are generally highly compatible with other tactics. The development of tactics for new targets is a major undertaking, although previous programs can be invaluable. New and improved socially-acceptable technologies are needed to counteract range expansion in Lepidoptera, and usually need to be used in combinations to achieve eradication. The sterile insect technique, which involves mass-rearing and release of sterile insects to reduce wild populations of the pest, has been used successfully against a number of lepidopteran species. Several sterile moth programs are under development. New technologies must have a social license to operate in urban areas, where new incursions are frequently detected. This factor is likely to reduce tactical flexibility and increase the complexity of insect eradication.

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Cytological Attributes of Sperm Bundles Unique to F₁Progeny of Irradiated Male Lepidoptera: Relevance to Sterile Insect Technique Programs

Cited by 21 publications

References 20 publications

Attractiveness and competitiveness of irradiated light brown apple moths

Attractiveness and competitiveness of irradiated light brown apple moths

Effects of parental radiation exposure on developmental instability in grasshoppers

Global range expansion of pest Lepidoptera requires socially acceptable solutions

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Cytological Attributes of Sperm Bundles Unique to F1Progeny of Irradiated Male Lepidoptera: Relevance to Sterile Insect Technique Programs

Cited by 21 publications

References 20 publications

Attractiveness and competitiveness of irradiated light brown apple moths

Attractiveness and competitiveness of irradiated light brown apple moths

Effects of parental radiation exposure on developmental instability in grasshoppers

Global range expansion of pest Lepidoptera requires socially acceptable solutions

Contact Info

Product

Resources

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Cytological Attributes of Sperm Bundles Unique to F₁Progeny of Irradiated Male Lepidoptera: Relevance to Sterile Insect Technique Programs