Distribution of the bacterial symbiont Cardinium in arthropods

  title={Distribution of the bacterial symbiont Cardinium in arthropods},
  author={Einat Zchori‐Fein and Steve J. Perlman},
  journal={Molecular Ecology},
Abstract 'Candidatus Cardinium', a recently described bacterium from the Bacteroidetes group, is involved in diverse reproduction alterations of its arthropod hosts, including cytoplasmic incompatibility, parthenogenesis and feminization. [] Key Method To estimate the incidence rate of Cardinium and explore the limits of its host range, 99 insect and mite species were screened, using primers designed to amplify a portion of Cardinium 16S ribosomal DNA (rDNA).

A review of prevalence and phylogeny of the bacterial symbiont Cardinium in mites (subclass: Acari)

The phylogeny of the examined mites was well resolved based on the 18S rRNA gene, whereas Cardinium phylogeny was not completely concordant with its associated host phylogeny, raising the possibility that horizontal transmission ofcardinium has occurred among species.

Infections with the Microbe Cardinium in the Dolichopodidae and Other Empidoidea

In an extensive survey of dipteran species from 67 genera belonging to the Dolichopodidae, Empididae, and Hybotidae, the presence of Cardinium could only be confirmed in 10 species, and numerous additional sequences were found to be assignable to known or unknown Bacteroidetes.

Prevalence of Cardinium Bacteria in Planthoppers and Spider Mites and Taxonomic Revision of “Candidatus Cardinium hertigii” Based on Detection of a New Cardinium Group from Biting Midges

A new group of bacteria, phylogenetically closely related to but distinct from previously described Cardinium bacteria (based on 16S rRNA and gyrB genes) was found in 4 out of 25 species of Culicoides biting midges, which possessed a microfilament-like structure that is a morphological feature previously found in CardInium and Paenicardinium.

Exploring the effect of the Cardinium endosymbiont on spiders

It is suggested that Cardinium can either behave as a neutral cytoplasmic element within H. pluchei or exhibit a context‐dependent effect, depending on the environmental conditions, as well as the mechanistic and evolutionary explanations for these results.

Distribution of the endosymbiotic bacterium Cardinium in Chinese populations of the carmine spider mite Tetranychus cinnabarinus (Acari: Tetranychidae)

Phylogenetic analysis based on the 16S rDNA gene sequence of Cardinium shows a close relationship between Cardinum in Chinese carmine spider mite and symbionts found in other species in the Tetranychidae.

Incidence of the endosymbionts Wolbachia, Cardinium and Spiroplasma in phytoseiid mites and associated prey

High similarities to complete identity are found with bacteria found in the same and different mite species but also withacteria found in insect species like ladybirds, butterflies and minute pirate bugs, Orius.

Cardinium inhibits Wolbachia in its mite host, Tyrophagus putrescentiae, and affects host fitness.

It is suggested that the presence of Cardinium inhibits the growth of Wolbachia in mixed mite populations, as well as the possible effect of symbionts on the fitness of mixed population.

Newly-introduced Cardinium endosymbiont reduces microbial diversity in the rice brown planthopper Nilaparvata lugens.

The results offer insights into the effects of alien (i.e. newly-introduced from other organism) Cardinium infection on N. lugens-associated microbiotas, aiding in the development of transinfected endosymbionts for pest control.



16S rRNA phylogenetic analysis of the bacterial endosymbionts associated with cytoplasmic incompatibility in insects.

Initial screening of insects indicates that cytoplasmic incompatibility may be a more general phenomenon in insects than is currently recognized and Lack of congruence between the phylogeny of the symbionts and their insect hosts suggest that horizontal transfer of symbiont between insect species may occur.

Incidence of a new sex–ratio–distorting endosymbiotic bacterium among arthropods

The results indicate that, although not as prevalent as Wolbachia, the CLO infects a significant number of arthropod hosts (ca. 7.2%) and Sequencing analysis of the 16S rDNA region of theCLO indicates evidence for horizontal transmission of the ClO strains.

A newly discovered bacterium associated with parthenogenesis and a change in host selection behavior in parasitoid wasps

It is reported that an undescribed bacterium is vertically transmitted and associated with thelytokous parthenogenetic reproduction in Encarsia, a genus of parasitoid wasps and suggested that EB may modify the behavior of its wasp carrier in a way that enhances its transmission.

Distribution of Wolbachia among neotropical arthropods

The abundance of Wolbachia in Panamanian neotropical arthropod species further supports their potential importance as a mechanism for rapid speciation in insects.

Diversity of Prokaryotes Associated with Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae)

The composition and diversity of prokaryotic symbionts associated with biotypes or haplotypes of the whitefly Bemisia tabaci Gennadius were examined for collections from representative host plants and different geographical locations worldwide.

Wolbachia in two insect host–parasitoid communities

The results of the survey and phylogenetic analyses of the sequence data suggest that host–parasitoid transfer of Wolbachia is not the major route through which the species the authors have examined become infected.

Phylogenetic evidence for horizontal transmission of Wolbachia in host-parasitoid associations.

It is demonstrated that hymenopteran parasitoids of frugivorous Drosophila species are especially susceptible to Wolbachia infection, which strongly supports the hypothesis of frequent natural Wolbachian transfers into other species and opens a new field for genetic exchanges among species, especially in host-parasitoid associations.

The establishment of intracellular symbiosis in an ancestor of cockroaches and termites

Molecular phylogenetic analysis unambiguously placed all these bacteria among the flavobacteria-bacteroides, indicating that M. darwiniensis is the sister group to the cockroach endosymbionts examined, and support previous claims that the original infection occurred in an ancestor common to cockroaches and termites.

Intracellular symbionts of sharpshooters (Insecta: Hemiptera: Cicadellinae) form a distinct clade with a small genome.

The first molecular characterization of bacteriome-associates in the leafhoppers is presented, with focus on the subfamily Cicadellinae (sharpshooters), and it is indicated that these symbionts form a well-defined clade within the gamma-3 Proteobacteria, consistent with an ancient colonization and strict vertical transmission.

Wolbachia pipientis: microbial manipulator of arthropod reproduction.

The alpha-proteobacterium Wolbachia pipientis is a very common cytoplasmic symbiont of insects, crustaceans, mites, and filarial nematodes that has evolved a large scale of host manipulations: parthenogenesis induction, feminization, and male killing.