Costs and benefits of Wolbachia infection in immature Aedes albopictus depend upon sex and competition level

Gavotte, Laurent; Mercer, David R.; Stoeckle, John J.; Dobson, Stephen L.

doi:10.1016/j.jip.2010.08.005

Cited by 56 publications

(48 citation statements)

References 47 publications

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“…19,43 Wolbachia is known to modify adult behavior, 44 and Wolbachia might also reduce larval foraging capability, but this remains to be tested. In addition, immune up-regulation 12 or increased metabolism 45 *Expected proportions are computed from the number emerging on a day and the number of infected and uninfected individuals overall (i.e., corrected for survivorship differences between strains).…”

Section: Discussionmentioning

confidence: 99%

“…This finding is in contrast to a study of Ae. albopictus, 19 in which delayed developers gained no size benefit when reared at a high density. Body size is an important indicator of female reproductive success; larger size is associated with greater fecundity, 41,46 blood feeding success 47 and mating success.…”

Section: Discussionmentioning

confidence: 99%

“…19,33 Sex-specific effects are expected in maternally transmitted endosymbionts because selection pressures acting on males are different than those acting on females. We found no clear sex-specific effects of either Wolbachia infection in our experiments.…”

Section: Discussionmentioning

confidence: 99%

“…aegypti are well documented, studies that examine the effects of Wolbachia infection on immature development are limited, particularly those that evaluate direct competition with uninfected larvae under stress. Gavotte and others 19 provided an example in Ae. albopictus.…”

Section: Introductionmentioning

confidence: 99%

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Larval Competition Extends Developmental Time and Decreases Adult Size of wMelPop Wolbachia-Infected Aedes aegypti

Ross¹,

Endersby²,

Yeap³

et al. 2014

The American Society of Tropical Medicine and Hygiene

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Abstract. The intracellular endosymbiont Wolbachia has been artificially transinfected into the dengue vector Aedes aegypti, where it is being investigated as a potential dengue biological control agent. Invasion of Wolbachia in natural populations depends upon the fitness of Wolbachia-infected Ae. aegypti relative to uninfected competitors. Although Wolbachia infections impose fitness costs on the adult host, effects at the immature stages are less clear, particularly in competitive situations. We look for effects of two Wolbachia infections, wMel and wMelPop, on intra-strain and interstrain larval competition in Ae. aegypti. Development of Wolbachia-infected larvae is delayed in mixed cohorts with uninfected larvae under crowded-rearing conditions. Slow developing wMelPop-infected larvae have reduced adult size compared with uninfected larvae, and larvae with the wMel infection are somewhat larger and have greater viability relative to uninfected larvae when in mixed cohorts. Implications for successful invasion by these Wolbachia infections under field conditions are considered.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Larval Competition Extends Developmental Time and Decreases Adult Size of wMelPop Wolbachia-Infected Aedes aegypti

Ross¹,

Endersby²,

Yeap³

et al. 2014

The American Society of Tropical Medicine and Hygiene

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“…Infected males tend to develop faster than their uninfected counterparts by about half a day (Table 1). In previous studies (6,8,14), the developmental time has been shown either to not be affected or to be negatively affected by Wolbachia. Accelerated development of Wolbachia-infected L. vic- …”

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confidence: 91%

Association of a New Wolbachia Strain with, and Its Effects on, Leptopilina victoriae, a Virulent Wasp Parasitic to Drosophila spp

Gueguen

Onemola

Govind

2012

Appl Environ Microbiol

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bWolbachia bacteria are ubiquitous intracellular bacteria of arthropods. Often considered reproductive parasites, they can benefit certain host species. We describe a new Wolbachia strain from Leptopilina victoriae, a Drosophila wasp. The strain is closely related to Wolbachia from Culex sp. Located to the posterior poles of oocytes, it manipulates its host's reproduction by inducing a male development type of cytoplasmic incompatibility. We also report its diverse effects on the wasp's life history traits.T he alphaproteobacterium Wolbachia pipientis is an intracellular symbiont found in many arthropod species (12). The clade containing Wolbachia pipientis is divided into 11 to 13 supergroups, depending on the study (1,3,18). Wolbachia bacteria are maternally transmitted reproductive parasites (19,27). A common effect of Wolbachia is the induction of cytoplasmic incompatibility (CI). CI is observed when Wolbachia-infected males mate with either females without Wolbachia or females carrying a different Wolbachia strain. Such reproductive incompatibility gives a fitness advantage to infected females and results in an increase in Wolbachia-infected individuals in the population (27). Wolbachia can also induce male killing, thelytokous parthenogenesis, and feminization of genetic males (21,27). In some cases, Wolbachia bacteria impose a cost on the fitness of their hosts (5, 6, 17). Conversely, Wolbachia bacteria can protect their hosts against pathogens or improve their fecundity (9,11,22,24). Overall, the biological effects of Wolbachia are strain and host specific.A Wolbachia strain, belonging to the B supergroup, has been identified in the parasitoid wasp Leptopilina victoriae (7), but little is known about its exact phylogenetic position and effects on L. victoriae. In contrast, the identity and the effects of Wolbachia in its sister species Leptopilina heterotoma have been well characterized (6,23,25).In this study, we show that Wolbachia from L. victoriae constitutes a novel strain type which is related to a strain of Wolbachia from Culex sp. It induces a male development type of CI and also affects size, developmental time, and fecundity of L. victoriae. The range of Drosophila species that L. victoriae attacks is limited, and this host range appears not to be affected by Wolbachia. These results advance our understanding of the biology of L. victoriae in relation to its exceptionally well-studied Drosophila host.Endosymbiotic bacteria of L. victoriae. Our laboratory culture of L. victoriae (16,20) was screened for the presence of five endosymbiotic bacteria known to influence host biology and reproduction, Wolbachia, Cardinium, Arsenophonus, Rickettsia, and Spiroplasma, as described previously (10, 15). Only one strain of Wolbachia was found to infect L. victoriae.A new Wolbachia strain type in L. victoriae. The five genes for multilocus sequence typing (MLST) of L. victoriae Wolbachia (gatB, coxA, hcpA, ftsZ, and fbpA) were sequenced. On the basis of a comparison to the Wolbachia MLST database (13; http: ...

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Dynamic changes in Wolbachia infection over a single generation of Drosophila suzukii, across a wide range of resource availability

McPherson,

Abram,

Curtis

et al. 2023

Ecology and Evolution

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Wolbachia bacteria are maternally inherited symbionts that commonly infect terrestrial arthropods. Many Wolbachia reach high frequencies in their hosts by manipulating their reproduction, for example by causing reproductive incompatibilities between infected male and uninfected female hosts. However, not all strains manipulate reproduction, and a key unresolved question is how these non‐manipulative Wolbachia persist in their hosts, often at intermediate to high frequencies. One such strain, wSuz, infects the invasive fruit pest Drosophila suzukii, spotted‐wing drosophila. Here, we tested the hypothesis that wSuz infection provides a competitive benefit when resources are limited. Over the course of one season, we established population cages with varying amounts of food in a semi‐field setting and seeded them with a 50:50 mixture of flies with and without Wolbachia. We predicted that Wolbachia‐infected individuals should have higher survival and faster development than their uninfected counterparts when there was little available food. We found that while food availability strongly impacted fly fitness, there was no difference in development times or survival between Wolbachia‐infected and uninfected flies. Interestingly, however, Wolbachia infection frequencies changed dramatically, with infections either increasing or decreasing by as much as 30% in a single generation, suggesting the possibility of unidentified factors shaping Wolbachia infection over the course of the season.

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Costs and benefits of Wolbachia infection in immature Aedes albopictus depend upon sex and competition level

Cited by 56 publications

References 47 publications

Larval Competition Extends Developmental Time and Decreases Adult Size of wMelPop Wolbachia-Infected Aedes aegypti

Larval Competition Extends Developmental Time and Decreases Adult Size of wMelPop Wolbachia-Infected Aedes aegypti

Association of a New Wolbachia Strain with, and Its Effects on, Leptopilina victoriae, a Virulent Wasp Parasitic to Drosophila spp

Dynamic changes in Wolbachia infection over a single generation of Drosophila suzukii, across a wide range of resource availability

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