Genetic Consequences of Domestication and Mass Rearing of Pest Fruit Fly &lt;I&gt;Bactrocera tryoni&lt;/I&gt; (Diptera: Tephritidae)

Gilchrist, A. S.; Cameron, Emilie; Sved, J. A.; Meats, A.

doi:10.1603/ec11421

Cited by 67 publications

(80 citation statements)

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“…Mortality by the end of the experiment was 32% for laboratory weevils and only 8% for Þeld weevils. Thus, this experiment showed increased fecundity and reduced survival in laboratory-reared compared with Þeld weevils, as has been observed in other mass-reared insect populations (Nunney 2003, van Lenteren 2003, Gilchrist et al 2012, Sorensen et al 2012.…”

Section: Discussionsupporting

confidence: 80%

“…Insects have been mass reared over many generations for a variety of reasons, including biological control (Mackauer 1976, Nunney 2003, van Lenteren 2003, sterile insect release (Gilchrist et al 2012, Sorensen et al 2012, Weldon et al 2013, and basic studies of genetics and evolution (Hoffmann et al 2001, Santos et al 2012. Insect populations subjected to many generations of artiÞcial selection in the laboratory may change genetically in ways that improve their performance in the rearing facility but reduce their performance in the Þeld (Mackauer 1976, Nunney 2003, van Lenteren 2003, Chambers 1977, Sorensen et al 2012.…”

mentioning

confidence: 99%

“…Substantial differences between wild and colony-reared tsetse ßies have also been found, including both physiological and behavioral differences, some of which reduced their effectiveness in the Þeld (Terblanche and Chown 2007). Commonly observed changes in life history traits in mass culture include increased fecundity, earlier reproductive maturity, reduced longevity, and reduced resistance to environmental stresses (Hoffmann et al 2001, Gilchrist et al 2012. Diapause incidence has also been reduced or eliminated in some laboratory colonies, sometimes intentionally (Tauber et al 1986).…”

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confidence: 99%

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Fitness and Field Performance of a Mass-Reared Biological Control Agent,Rhinoncomimus latipes(Coleoptera: Curculionidae)

2014

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Rhinoncomimus latipes Korotyaev (Coleoptera: Curculionidae), a biological control agent of mile-a-minute weed, Persicaria perfoliata (L.) H. Gross, has been mass reared with no infusion of new genetic material for 8-9 yr (at least 24-36 generations), while insects from the same genetic stock have been subject to field conditions in North America for that same period of time. Our main objective was to compare the laboratory population with the field population (and in 1 yr with a Chinese field population) to determine whether genetic changes had occurred, especially ones that may reduce the effectiveness of the laboratory population when released in the field. The laboratory insects laid more eggs and had reduced survival compared with field weevils in several comparisons, and had reduced responsiveness to cues that induce reproductive diapause. Exposure to older plants had the greatest effect on induction of reproductive diapause in both laboratory and field weevils, with effects of daylength and temperature less pronounced. At least a portion of the laboratory weevil population overwintered successfully. Results suggest that it is not necessary to add wild-type genetic material to the rearing colony at this time.

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Section: Discussionsupporting

confidence: 80%

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confidence: 99%

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confidence: 99%

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Fitness and Field Performance of a Mass-Reared Biological Control Agent,Rhinoncomimus latipes(Coleoptera: Curculionidae)

2014

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“…Generally, competitiveness of the male insects decreases with every generation in the insectary and therefore the mass-reared strains occasionally need to be refreshed by integrating wild genetic material (Gilchrist et al, 2012;Zygouridis et al, 2014). This has been successfully applied in fruit fly programmes (Calkins and Parker, 2005).…”

Section: Sexing Strain Ano Ipcl1mentioning

confidence: 99%

The Anopheles arabiensis genetic sexing strain ANO IPCL1 and its application potential for the sterile insect technique in integrated vector management programmes

et al. 2015

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The Anopheles arabiensis genetic sexing strain ANO IPCL1 was developed based on a dieldrin resistant mutation. The strain has been shown to be practical and reliable in terms of female elimination by dieldrin treatments at larval stages, but has provided some difficulties when treatments were applied at the egg stage. The high natural sterility of this strain has advantages and disadvantages in both mass rearing and the sterilization process. In addition, its recombination rate, although relatively low, poses a threat of strain deterioration if left unchecked in a mass-rearing setting. The males of the ANO IPCL1 have been shown to be equally competitive as lab-reared males of the wild-type Dongola strain, but competitiveness decreased by half when irradiated with 75 Gy—a dose conferring >98% sterility. More controversial issues surround the use of dieldrin—a highly persistent organochlorine that is known to bioaccumulate in the food chain. The prospective use of large volumes of dieldrin in a mass-rearing facility and the retention of its residues by the male mosquitoes makes the use of the strain in the context of the sterile insect technique against this vector highly questionable, and therefore its implementation at a large scale cannot be recommended.

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“…Both classical and augmentation biological control depend on successful laboratory rearing of natural enemies, but initial population composition, rearing methods, and time in captivity can affect the success of a laboratory colony (Woodworth et al, 2002;Reed et al, 2003;Gilchrist et al, 2012;Francuski et al, 2014), and ultimately their success in controlling the pest once released in the field (Taylor et al, 2011;Fowler et al, 2015). One process that might occur during the rearing of natural enemies is inbreeding, which can lead to inbreeding depression, that is, decreased fitness of the offspring of genetically related parents (Charlesworth and Charlesworth, 1987;Charlesworth and Willis, 2009).…”

Section: Introductionmentioning

confidence: 99%

Laboratory rearing methods that promote inbreeding have a negative impact on the fitness of Mastrus ridens Horstmann (Hymenoptera: Ichneumonidae), a parasitoid used to control the codling moth

Bueno

Romero

Osorio

et al. 2017

Chil. j. agric. res.

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413Classical and augmentation biological control depend on the successful laboratory rearing of natural enemies, but rearing methods can affect the success and productivity of a laboratory colony. One process that can occur during rearing is the loss of genetic variability due to inbreeding. The aim of this study was to examine the influence of rearing methods with and without inbreeding in Mastrus ridens Horstmann, a hymenopteran parasitoid specialist of the codling moth (Cydia pomonella [L.]), on several fitness traits. Traits of females from mixed and endogamous populations resulting from different rearing methods were compared, as well as traits of females from the same population subjected to sib-mating or outbreeding. Longevity, parasitism, total fecundity, and number of sons were similar for females in both evaluations. The number of daughters was lower (1.9 ± 0.6 vs. 4.5 ± 0.5) and the offspring sex ratio was higher (0.81 ± 0.04 vs. 0.48 ± 0.05 proportion of males) in females from the endogamous population compared to females of the mixed population, as well as in sib-mating females compared to outbred females of the same population (0.5 ± 0.3 vs. 5.8 ± 1.9 daughters and 0.94 ± 0.03 vs. 0.51 ± 0.10 sex ratio). These results show that rearing methods, specifically inbreeding conditions, have an effect on M. ridens fitness; thus, successful outbred laboratory rearing should be promoted.Key words: Biological control, longevity, parasitism, rearing, sex ratio. ABSTRACTLaboratory rearing methods that promote inbreeding have a negative impact on the fitness of Mastrus ridens Horstmann (Hymenoptera: Ichneumonidae), a parasitoid used to control the codling moth

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Genetic Consequences of Domestication and Mass Rearing of Pest Fruit Fly <I>Bactrocera tryoni</I> (Diptera: Tephritidae)

Cited by 67 publications

References 43 publications

Fitness and Field Performance of a Mass-Reared Biological Control Agent,Rhinoncomimus latipes(Coleoptera: Curculionidae)

Fitness and Field Performance of a Mass-Reared Biological Control Agent,Rhinoncomimus latipes(Coleoptera: Curculionidae)

The Anopheles arabiensis genetic sexing strain ANO IPCL1 and its application potential for the sterile insect technique in integrated vector management programmes

Laboratory rearing methods that promote inbreeding have a negative impact on the fitness of Mastrus ridens Horstmann (Hymenoptera: Ichneumonidae), a parasitoid used to control the codling moth

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