The etiological agent of cytoplasmic incompatibility in Culex pipiens

Yen, J. H.; Barr, A. R.

doi:10.1016/0022-2011(73)90141-9

Cited by 262 publications

(187 citation statements)

References 13 publications

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“…This incompatibility provides Wolbachia-infected females with a fitness advantage relative to uninfected females. 4,5 The reproductive manipulation induced by Wolbachia enables the infection to proliferate rapidly, potentially leading to replacement of naturally uninfected populations. [6][7][8] Although many mosquito species are infected with Wolbachia, the container-breeding Aedes aegypti, the principal dengue vector, does not harbor a natural Wolbachia infection.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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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“…In addition, in many insect species, Wolbachia induce cytoplasmic incompatibility (CI). This is an early embryo death that is observed in crosses between infected males and uninfected females, as well as in some crosses between individuals infected by different Wolbachia strains (Yen & Barr 1973). The effects of Wolbachia on their hosts are variable and variation in symbiont density within individual hosts may be one of the factors that modulate them.…”

Section: Introductionmentioning

confidence: 99%

HighWolbachiadensity in insecticide–resistant mosquitoes

Berticat

Rousset

Raymond

et al. 2002

Proc. R. Soc. Lond. B

159

153

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Wolbachia symbionts are responsible for various alterations in host reproduction. The effects of the host genome on endosymbiont levels have often been suggested, but rarely described. Here, we show that Wolbachia density is strongly modified by the presence of insecticide-resistant genes in the common house mosquito, Culex pipiens. The Wolbachia density was estimated using a real-time quantitative PCR assay. Strains harbouring different genes conferring resistance were more infected than a susceptible strain with the same genetic background. We show that this interaction also operates in natural populations. We propose that mosquitoes may control Wolbachia density less efficiently when they carry an insecticideresistant gene, i.e. when they suffer from a physiological resistance cost.

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“…In a variety of insect species, maternally inherited bacteria of the genus Wolbachia are responsible for sterile crosses known as cytoplasmic incompatibilities (Yen & Barr, 1973;Kellen etal., 1981;Hsiao & Hsiao, 1985;Binnington & Hoffmann, 1989;Breeuwer et a!., 1992;O'Neill et a!., 1992;Rousset et al, 1992a, b).…”

Section: Introductionmentioning

confidence: 99%

Properties of Drosophila simulans strains experimentally infected by different clones of the bacterium Wolbachia

Rousset

Stordeur

1994

Heredity

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Maternally inherited bacteria of the genus Wolbachia are responsible for reproductive incompatibilities between strains of Drosophila simulans. Such incompatibilities are known in several types of crosses, including both directions of crossing between two types of infected strains, 'R' and 'S'. To determine whether the bidirectional incompatibility between R and S flies is due only to differences between their, bacteria, flies from an uninfected strain have been experimentally infected with bacteria associated with each type. The incompatibility properties of experimental strains are close to those of original strains harbouring the same bacteria and therefore independent of nuclear background. Backcross experiments, however, show that the infection level of a strain depends on the nature of paternal ancestors. This is not explained by nuclear effects but is possibly the result of an interaction between the infection levels of both parents, in which the infection level of S strains is an equilibrium between a tendency for females to produce weakly infected offspring and selection of more infected eggs by sperm from infected males.

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The etiological agent of cytoplasmic incompatibility in Culex pipiens

Cited by 262 publications

References 13 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

HighWolbachiadensity in insecticide–resistant mosquitoes

Properties of Drosophila simulans strains experimentally infected by different clones of the bacterium Wolbachia

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