scholarly journals Variation in Wolbachia cidB gene, but not cidA , is associated with cytoplasmic incompatibility mod phenotype diversity in Culex pipiens

2019 ◽  
Vol 28 (21) ◽  
pp. 4725-4736 ◽  
Author(s):  
Manon Bonneau ◽  
Beniamino Caputo ◽  
Aude Ligier ◽  
Rudy Caparros ◽  
Sandra Unal ◽  
...  
Keyword(s):  
Culex Pipiens ◽  
Cytoplasmic Incompatibility ◽  
Phenotype Diversity

scholarly journals Rapid evolution of Wolbachia incompatibility types

2012 ◽  
Vol 279 (1746) ◽  
pp. 4473-4480 ◽  
Author(s):  
Olivier Duron ◽  
Jennifer Bernard ◽  
Célestine M. Atyame ◽  
Emilie Dumas ◽  
Mylène Weill
Keyword(s):  
Reproductive Success ◽  
Dynamic Process ◽  
Culex Pipiens ◽  
Cytoplasmic Incompatibility ◽  
Rapid Evolution ◽  
The Self ◽  
Isofemale Lines ◽  
Individual Host ◽  
Gradual Process ◽  
Self Compatibility

In most insects, the endosymbiont Wolbachia induces cytoplasmic incompatibility (CI), an embryonic mortality observed when infected males mate either with uninfected females or with females infected by an incompatible Wolbachia strain. Although the molecular mechanism of CI remains elusive, it is classically viewed as a modification–rescue model, in which a Wolbachia mod function disables the reproductive success of the sperm of infected males, unless eggs are infected and express a compatible resc function. The extent to which the modification–rescue model can predict highly complex CI pattern remains a challenging issue. Here, we show the rapid evolution of the mod–resc system in the Culex pipiens mosquito. We have surveyed four incompatible laboratory isofemale lines over 50 generations and observed in two of them that CI has evolved from complete to partial incompatibility (i.e. the production of a mixture of compatible and incompatible clutches). Emergence of the new CI types depends only on Wolbachia determinants and can be simply explained by the gain of new resc functions. Evolution of CI types in Cx. pipiens thus appears as a gradual process, in which one or several resc functions can coexist in the same individual host in addition to the ones involved in the self-compatibility. Our data identified CI as a very dynamic process. We suggest that ancestral and mutant Wolbachia expressing distinct resc functions can co-infect individual hosts, opening the possibility for the mod functions to evolve subsequently. This gives a first clue towards the understanding of how Wolbachia reached highly complex CI pattern in host populations.

scholarly journals Cytoplasmic Incompatibility as a Means of Controlling Culex pipiens quinquefasciatus Mosquito in the Islands of the South-Western Indian Ocean

2011 ◽  
Vol 5 (12) ◽  
pp. e1440 ◽  
Author(s):  
Célestine M. Atyame ◽  
Nicole Pasteur ◽  
Emilie Dumas ◽  
Pablo Tortosa ◽  
Michaël Luciano Tantely ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Culex Pipiens ◽  
Cytoplasmic Incompatibility ◽  
Western Indian Ocean ◽  
The South ◽  
Culex Pipiens Quinquefasciatus

scholarly journals SEGREGATION OF CYTOPLASMIC INCOMPATIBILITY PROPERTIES IN CULEX PIPIENS FATIGANS

Genetics ◽  
1977 ◽  
Vol 87 (2) ◽  
pp. 381-390
Author(s):  
Sarala K Subbarao ◽  
B S Krishnamurthy ◽  
C F Curtis ◽  
T Adak ◽  
R K Chandrahas
Keyword(s):  
Culex Pipiens ◽  
Cytoplasmic Incompatibility ◽  
Male Progeny ◽  
Culex Pipiens Fatigans ◽  
Laboratory Colony

ABSTRACT Maternally inherited variants, which arose within a laboratory colony of Culex pipiens fatigans, have been studied by rearing cultures from single egg rafts. Segregation, i.e., variation of cytoplasmic incompatibility properties between the male progeny of individual females, was demonstrated. Also, from the daughters of individual females, sub-lines were derived within which all the males showed the same incompatibility or compatibility properties. Among the descendants of tetracycline-treated individuals were lines which superficially simulated these phenomena, but these lines ultimately reverted to the cytoplasmic compatibility type of the strain which was submitted to the treatment. The types of variations in cytoplasmic incompatibility properties that have been studied are discussed.

scholarly journals The cellular phenotype of cytoplasmic incompatibility in Culex pipiens in the light of cidB diversity

2018 ◽  
Vol 14 (10) ◽  
pp. e1007364 ◽  
Author(s):  
Manon Bonneau ◽  
Frédéric Landmann ◽  
Pierrick Labbé ◽  
Fabienne Justy ◽  
Mylène Weill ◽  
...  
Keyword(s):  
Culex Pipiens ◽  
Cytoplasmic Incompatibility ◽  
Cellular Phenotype

Crossing relationships among seven members of the group of Aedes scutellaris (Walker) (Diptera: Culicidae)

1984 ◽  
Vol 74 (1) ◽  
pp. 65-78 ◽  
Author(s):  
S. R. Meek ◽  
W. W. MacDonald
Keyword(s):  
Culex Pipiens ◽  
Reciprocal Cross ◽  
Cytoplasmic Incompatibility ◽  
Female Parent ◽  
Male Parent ◽  
The West ◽  
Egg Hatch ◽  
Aedes Polynesiensis ◽  
Eastern Species

AbstractA rickettsia-free (aposymbiotic) stock of Aedes polynesiensis Marks (POLY-A) was crossed with (a) three symbiont-infected stocks of A. polynesiensis (POLY-S from Samoa and POLY-N and POLY-T from Fiji), (b) A. pseudoscutellaris (Theo.) (PSE) from Fiji, (c) A. alcasidi Huang (ALC), A. scutellaris katherinensis Woodhill (KATH), A. s. malayensis Colless (MAL) and A. s. scutellaris (Wlk.) (SCUT), which occur to the west of Fiji and (d) an aposymbiotic stock of A. cooki Belkin (CO) from Niue. It was bidirectionally compatible with CO, but in all other crosses compatibility was high when POLY-A was the male parent and very low when it was the female parent. Backcross data suggested that the crossing type was maternally inherited. ALC and KATH were bidirectionally compatible; both were virtually incompatible with POLY-S and PSE, compatible with SCUT when the latter was the female parent, and compatible with CO when the latter was the male parent. POLY-S females were moderately compatible with a third Fijian stock of A. polynesiensis (POLY-V), and POLY-N and POLY-V were compatible with PSE. If, as in Culex pipiens L., rickettsia-like symbionts are responsible for cytoplasmic incompatibility, then aposymbiotic males should cross successfully with symbiont-infected females, whereas the reciprocal cross should be unsuccessful. Since PSE, MAL and SCUT contain symbionts, their crossing relationships are consistent with the hypothesis. However, ALC and KATH appear to be aposymbiotic and their crossing relationships conflict with the hypothesis. There is little evidence of behavioural barriers to mating between species, but whereas male hybrids of two eastern species were capable of normal insemination, male hybrids between western and eastern species gave very low insemination rates. The egg-hatch rates from backcrosses of female hybrids between western and eastern species to the parents were reduced.

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