Pipientis cause wolbachia bacterium. Medical search. Frequent questions

Wolbachia strains that distort the sex ratio may alter their host's pattern of sexual selection in nature, and also engender strong selection to prevent their action, leading to some of the fastest examples of natural selection in natural populations. (wikipedia.org)
Some Wolbachia strains interfere with the development of Plasmodium parasites in female Anopheles , a major vector of malaria. (biomedcentral.com)
Hence, identification of native Wolbachia strains in areas where malaria transmission is low may uncover a particular Wolbachia strain capable of Plasmodium interference. (biomedcentral.com)
This study aims to identify native Wolbachia strains in female Anopheles spp. (biomedcentral.com)
The DNA sequences of the amplicons were phylogenetically compared with those of known Wolbachia strains. (biomedcentral.com)
The phylogenetic trees indicate a close relationship with Wolbachia strains in subgroup B. (biomedcentral.com)
Group B Wolbachia strains showed more phylogenetic concordance with their host taxa than group A strains. (lshtm.ac.uk)
Of the 25 positive mosquito species, five were superinfected with group A bacteria strains (AA), eight were superinfected with A and B strains (AB), and one was superinfected with group B strains (BB). (lshtm.ac.uk)
Additionally, bidirectional CI can occur if the male and female are infected with different Wolbachia strains and has been implicated as a cause of host speciation and is also being exploited as a method for biocontrol of insect disease vectors. (uu.se)
I am currently involved in several genome sequencing projects of Wolbachia strains infecting different Drosophila species with the aim of determining the evolutionary mechanisms involved inshaping their genomes and determining the genetic factors in phenotypic expression. (uu.se)
There are many different strains of the bacteria, and their effect on populations depends on the strains used. (mosquitoalert.com)
and two Wolbachia strains. (biomedcentral.com)
They injected Wolbachia into mosquito eggs and created new strains of mosquitoes with half the lifespan of a normal mosquito (1, 2). (molecule-world.com)
A team led by TIGR's senior director of bioinformatics, Steven Salzberg, used TIGR's data from the first Wolbachia to be sequenced ( W. pipientis wMel ) as a probe to analyze fruitfly Trace Archive data for other strains of the endosymbiont. (jcvi.org)
Previous research demonstrated that the two Wolbachia strains (wAlbA and wAlbB) that naturally co-infect the disease vector mosquito Aedes albopictus (Asian tiger mosquito) can be replaced with the wPip Wolbachia strain from Culex pipiens. (uky.edu)
Parry, R., de Malmanche, H. & Asgari, S. (2021) Persistent Spodoptera frugiperda rhabdovirus infection in Sf9 cells is not restricted by Wolbachia w MelPop-CLA and w AlbB strains and is targeted by the RNAi machinery. (insect-host-pathogen.org)

Researchers at the University of Wisconsin-Madison have confirmed that a benign bacterium called Wolbachia pipientis can completely block transmission of Zika virus in Aedes aegypti , the mosquito species responsible for passing the virus to humans. (scienceblog.com)
While not typically found in the Aedes aegypti mosquito - the species that also transmits dengue, chikungunya and yellow fever viruses - O'Neill discovered in the early 1990s that Wolbachia could be introduced to the mosquito in the lab and would prevent the mosquitoes from transmitting dengue virus. (scienceblog.com)
Zika virus belongs to the same family as dengue virus and Aliota and Osorio - with co-authors Stephen Penaido at SVM and Ivan Dario Velez, at the Universidad de Antioquia in Medellin, Colombia - asked whether Wolbachia -harboring Aedes aegypti may also be effective against Zika virus. (scienceblog.com)
We saw reduced vector competence in Aedes aegypti with Wolbachia ," says Osorio, defined as the intrinsic ability of an insect to support the development or replication of a pathogen like a virus and then transmit it. (scienceblog.com)
Objective To investigate the effects of different diets on the density of Wolbachia in the ovary, fat body, and the other tissues in female Aedes aegypti of the WB strain. (bmsw.net.cn)
Several experiments had already been carried out in different countries releasing mosquitoes from Aedes aegypti infected with Wolbachia with relative success. (mosquitoalert.com)
We have discovered a case of HGT, involving two adjacent genes, between the genomes of Wolbachia and the currently Wolbachia -uninfected mosquito Aedes aegypti , an important human disease vector. (biomedcentral.com)
Aedes aegypti , the most important mosquito vector of human dengue fever and various other arboviruses, is naturally Wolbachia -uninfected but has been shown to be able to support Wolbachia following artificial transinfection - with both high rates of maternal inheritance and the expression of high levels of CI [ 13 ]. (biomedcentral.com)
Background: Wolbachia pipientis is a common endosymbiotic bacterium of arthropods that strongly inhibits dengue virus (DENV) infection and transmission in the primary vector, the mosquito Aedes aegypti. (johnshopkins.edu)
15. Recently, a team of scientist used a strain of a bacterium called Wolbachia pipientis to infect Aedes aegyti in an effort to reduce the mosquito's life span. (leadthecompetition.in)
Cytoplasmic incompatibility is also useful because it makes it less likely that Aedes aegypti mosquites will become resistant to Wolbachia infection. (molecule-world.com)
Hussain, M, Bradshaw, T., Lee, M. & Asgari, S. (2022) The involvement of atlastin in dengue virus and Wolbachia infection in Aedes aegypti and its regulation by aae-miR-989. (insect-host-pathogen.org)
Bishop, C., Hussain, M., Hugo, L.E. & Asgari, S. (2022) Analysis of Aedes aegypti microRNAs in response to Wolbachia w AlbB infection and their potential role in mosquito longevity. (insect-host-pathogen.org)
S. (2021) Transcriptional response of Wolbachia to dengue virus infection in the mosquito Aedes aegypti cells. (insect-host-pathogen.org)
Bishop, C. & Asgari, S. (2021) Altered gene expression profile of Wolbachia pipientis w AlbB strain following transinfection from its native host Aedes albopictus to Aedes aegypti cells. (insect-host-pathogen.org)

Wolbachia is a genus of intracellular bacteria that infects mainly arthropod species, including a high proportion of insects, and also some nematodes. (wikipedia.org)
Wolbachia is an intracellular bacterium that naturally infects the majority of insect species [ 7 ]. (biomedcentral.com)
The alphaproteobacterium Wolbachia pipientis infects arthropod and nematode species worldwide, making it a key target for host biological control. (geneconvenevi.org)
New research reveals how the bacteria strain Wolbachia pipientis enhances the fertility of the insects it infects, an insight that could help scientists increase the populations of mosquitoes that do not carry human disease. (womenshealthdaily.com)

Research on Wolbachia intensified after 1971, when Janice Yen and A. Ralph Barr of UCLA discovered that Culex mosquito eggs were killed by a cytoplasmic incompatibility when the sperm of Wolbachia-infected males fertilized infection-free eggs. (wikipedia.org)
Cytoplasmic incompatibility is the inability of Wolbachia-infected males to successfully reproduce with uninfected females or females infected with another Wolbachia strain. (wikipedia.org)
In the cytoplasmic incompatibility mechanism, Wolbachia interferes with the parental chromosomes during the first mitotic divisions to the extent that they can no longer divide in synchrony. (wikipedia.org)
Wolbachia, especially Wolbachia-caused cytoplasmic incompatibility, may be important in promoting speciation. (wikipedia.org)
Wolbachia is capable of manipulating host reproduction through cytoplasmic incompatibility [ 8 , 9 ], in which Wolbachia -infected eggs form viable offspring and noninfected eggs do not. (biomedcentral.com)
However, for the reproduction of mosquitoes to be affected there must be an incompatibility between the variants of the bacteria carried by the female and the male. (mosquitoalert.com)
Wolbachia pipientis is an intracellular inherited bacterium found in arthropods, where it manipulates host reproduction using phenotypes such as cytoplasmic incompatibility (CI), male killing, parthenogenesis and feminization, and can spread rapidly through insect populations [ 1 ]. (biomedcentral.com)
Wolbachia-driven host reproductive manipulations, such as cytoplasmic incompatibility (CI), are credited for catapulting these intracellular bacteria to high frequencies in host populations. (geneconvenevi.org)
The Wolbachia strain w Mel was recently found to increase locomotor activities and possibly trigger cytoplasmic incompatibility in the transinfected fly Drosophila nigrosparsa . (nature.com)
Background: Cytoplasmic incompatibility (CI) is induced in nature by Wolbachia bacteria, resulting in conditional male sterility. (uky.edu)

Wolbachia bacteria reside in the cytoplasmic vacuoles of various types of insect somatic and germ cells, allowing maternal transmission to their progeny. (biomedcentral.com)

These bacteria can infect many different types of organs, but are most notable for the infections of the testes and ovaries of their hosts. (wikipedia.org)
Wolbachia , obligate intracellular bacteria, infect the majority of arthropods, including many mosquito species of medical importance. (biomedcentral.com)
Wolbachia are a group of intracellular inherited bacteria that infect a wide range of arthropods. (lshtm.ac.uk)
The second technique is to infect mosquitoes in the laboratory with the Wolbachia pipientis bacteria and subsequently release them in the wild. (mosquitoalert.com)
Wolbachia are maternally inherited endosymbionts that infect nearly half of all arthropod species. (nature.com)

The endosymbiont Wolbachia pipientis is being released into populations of the mosquito vector of dengue, Zika, chikungunya and yellow fever viruses throughout the tropics. (grantome.com)

The male killing and feminization effects of Wolbachia infections can also lead to speciation in their hosts. (wikipedia.org)
Several recent studies have demonstrated substantial effects of Wolbachia infections on host Tp in different Drosophila species. (solamonrenewableenergy.com)

The evolutionary importance of horizontal gene transfer (HGT) from Wolbachia endosymbiotic bacteria to their eukaryotic hosts is a topic of considerable interest and debate. (biomedcentral.com)
The data support the argument that HGT between Wolbachia endosymbiotic bacteria and their hosts has produced evolutionary innovation. (biomedcentral.com)

Lateral phage transfer in obligate intracellular bacteria (wolbachia): verification from natural populations. (mbl.edu)

The infection is transferred maternally from mother to offspring and Wolbachia has evolved at least four different ways to manipulate the host reproduction in order to increase the number of infected females in a population. (uu.se)
The infected females hereby achieve a reproductive advantage over the uninfected females in a population and CI can thus result in spread of the Wolbachia infection throughout a population that was previously uninfected. (uu.se)
The effect of Wolbachia infection on this process had not previously been examined. (johnshopkins.edu)
We examined the effect of Wolbachia infection on the prevalence of DENV infection, and viral load in the ovaries. (johnshopkins.edu)
For orally infected mosquitoes, Wolbachia decreased the prevalence of infection by 71.29%, but there was no such effect when the virus was injected. (johnshopkins.edu)
Interestingly, regardless of the method of infection, Wolbachia infection strongly reduced DENV load in the ovaries. (johnshopkins.edu)
There was a trend towards lower rates in the presence of Wolbachia, with overall maximum likelihood estimate of infection rates of 5.04 per 1000 larvae for mosquitoes without Wolbachia, and 1.93 per 1000 larvae for Wolbachia-infected mosquitoes, after DENV injection. (johnshopkins.edu)
Nevertheless, the low prevalence of disseminated DENV infection and lower DENV load in the ovaries supports the hypothesis that the presence of Wolbachia in Ae. (johnshopkins.edu)
Additionally, we assessed the effects of Wolbachia infection on Tp of Drosophila at different developmental stages, which has not been done before. (solamonrenewableenergy.com)

For example, populations of the pill woodlouse, Armadillidium vulgare which are exposed to the feminizing effects of Wolbachia, have been known to lose their female-determining chromosome. (wikipedia.org)
In fact, tiger mosquitoes from wild populations on the islands of Guangzhou are naturally infected with two variants of the bacteria without any effect on the viability of individuals or their offspring. (mosquitoalert.com)
Therefore, the researchers infected a large number of mosquitoes in the laboratory with a third variant of the bacterium that is not found in the populations of the Guangzhou islands. (mosquitoalert.com)

Wolbachia bacteria maximize their spread by significantly altering the reproductive capabilities of their hosts, with four different phenotypes: Male killing occurs when infected males die during larval development, which increases the rate of born, infected females. (wikipedia.org)
Symbiotic bacteria, especially those of the reproductive and digestive tissue, influence a variety of important physiological properties of their insect hosts. (biomedcentral.com)

Horizontal gene transfer Any process in which a bacterium inserts genetic material into the genomes of other pathogens or into the genome of its host. (mpkb.org)
My main interests are in finding out how these tight associations affect genome evolution, determining genetic factors involved in host interactions and exploring the diversity of symbiotic bacteria in nature. (uu.se)
Recent transfers of genome fragments from Wolbachia into insect chromosomes have been reported, but it has been argued that these fragments may be on an evolutionary trajectory to degradation and loss. (biomedcentral.com)
From the fruitfly species D. ananassae , they retrieved an estimated 98 percent of the genome of a new Wolbachia species, which they identified as Wolbachia wAna . (jcvi.org)
In a similar fashion, they identified Wolbachia wSim in the genome of D. simulans and Wolbachia wMoj in the genome of D. mojavensis . (jcvi.org)
TIGR's Mihai Pop and Art Delcher helped with the genome assemblies and Bill Nelson helped with annotation of the Wolbachia . (jcvi.org)
When the TIGR team compared the new Wolbachia genomes with the known genome of the wMel strain of W. pipientis , they found new genes - as many as 464 new genes in wAna - as well as indications of extensive rearrangements between wMel and wAna . (jcvi.org)
The first complete genome of a Wolbachia species was published by TIGR and collaborators in the March 2004 issue of PLoS Biology . (jcvi.org)
The investigators, led by TIGR Investigator Jonathan Eisen - brother of Michael Eisen - found that composition of the genome was very different from that of other intracellular bacteria. (jcvi.org)
The wMel genome has accumulated more repetitive and so-called "junk" DNA (DNA for which a function cannot be identified) than any other intracellular bacteria. (jcvi.org)
Through selection experiments in cell culture, we will determine which aspects of the virus genome can confer protection against the Wolbachia effect. (grantome.com)

However, to the best of our knowledge, no study has yet investigated the effects of Wolbachia on Drosophila Tp at juvenile life stages. (solamonrenewableenergy.com)

Bacteria that cannot be grown in pure cultures make up a large part of the biomass and genetic diversity on earth and play an important role in many system, for example in the many symbiotic associations with eukaryotes. (uu.se)
My research focuses on symbiotic bacteria that cannot live outside of a eukaryotic host cell. (uu.se)
In order to do so, many insect species have developed very tight symbiotic relationships with microorganisms such as bacteria and fungi that provide them with the nutrients that are lacking in their diet. (uu.se)
Apart from these nutritional interactions, many insects carry additional symbiotic bacteria of which we currently know quite little, but that in some insects have been shown to provide adaptation for specific conditions. (uu.se)
To investigate the occurrence of possible microbial candidates for symbiotic control we performed a molecular characterization of the bacteria associated to H obsoletus. (edu.sa)
Symbiotic bacteria contribute to a multitude of important biological functions such as nutrition and reproduction and affect multiple physiological factors like fitness and longevity in their insect hosts. (biomedcentral.com)
Research on insects and their bacterial communities provides valuable information on potential interaction between the host and their symbiotic bacteria. (spasb.ro)

One study concluded that more than 16% of neotropical insect species carry bacteria of this genus, and as many as 25 to 70% of all insect species are estimated to be potential hosts. (wikipedia.org)
All members are intracellular endosymbionts of invertebrates, and it has been estimated that as many as 15-70% of all insect species on earth are infected by Wolbachia . (uu.se)

Living inside the gonad cells of more than a million species of insects, spiders, crustaceans and worms, most members of the Wolbachia family of intracellular bacteria manipulate the reproduction of their host to help ensure their own survival. (jcvi.org)
Wolbachia manipulate their hosts to maximize their transmission, but they can also provide benefits such as nutrients and resistance against viruses to their hosts. (nature.com)

The use of Wolbachia as a means to block malaria transmission is an emerging vector control strategy in highly endemic areas. (biomedcentral.com)

Phylogenetic studies have shown that Wolbachia persica (now Francisella persica) was closely related to species in the genus Francisella and that Wolbachia melophagi (now Bartonella melophagi) was closely related to species in the genus Bartonella, leading to a transfer of these species to these respective genera. (wikipedia.org)
Both phylogenetic analyses and theory suggest that Wolbachia can be lost over time from host species by a variety of mechanisms [ 10 - 12 ]. (biomedcentral.com)

At the time, the Brazilian Oscar du Cruis Foundation (Fiocruz) planned to release 10,000 mosquitoes infected with bacteria, as previously introduced, to prevent dengue fever. (techrecipe.co.kr)

Increasingly, studies of genes and genomes are indicating that considerable horizontal gene transfer has occurred between bacteria. (mpkb.org)
Finding the genomic equivalent of gold nuggets in the rough ore of a much larger set of data, TIGR scientists and collaborators have discovered the genomes of three new types of the microbe Wolbachia in fruitfly sequence data. (jcvi.org)

Wolbachia densities in the fat body in the three groups were 0.859, 1.189, 1.298, respectively, and the differences were not statistically significant ( H =1.631, P =0.442). (bmsw.net.cn)
Wolbachia densities in the other tissues were 0.505, 0.405, 1.012, respectively, and the differences were not statistically significant ( H =6.306, P =0.043). (bmsw.net.cn)
In a fully replicated design, we will track the dengue virus load in the mosquito and Wolbachia densities through time. (grantome.com)

A recent study in three black fly species in the genus Simulium found differential Wolbachia prevalence among species, suggesting host-specific interactions 16 . (nature.com)

Using the Wolbachia Bacterial Symbiont to Teach Inquiry-Based Science: A High School Laboratory Series. (mbl.edu)

We report herein the first systematic survey of Wolbachia in mosquitoes, and the first survey classifying Wolbachia infections by subgroup. (lshtm.ac.uk)

The association of these genes with Wolbachia prophage regions also provides a mechanism for the transfer. (biomedcentral.com)

The mosquitoes were either harboring the same strain of the Wolbachia bacteria (called wMel) used in field studies or were Wolbachia -free and the mice had levels of virus in their blood similar to humans infected with Zika virus. (scienceblog.com)

Distribution and diversity of Wolbachia infections in Southeast Asian mosquitoes (Diptera: Culicidae). (lshtm.ac.uk)

They found that the intestinal bacteria genes were more than 90% homologous to the corresponding sequence in HIV - suggesting that the bacteria and the HIV virus had traded a significant amount of genetic material. (mpkb.org)
One plasmid codes for genes that allow the pathogens to create toxins, the other codes for proteins that help it evade the immune system by living inside the white blood cells that kill and digest bacteria. (mpkb.org)
and furthermore that we would expect to see Wolbachia -like genes in species that do not currently harbour Wolbachia but presumably did in the past. (biomedcentral.com)
gene AAEL004188 shows partial similarity to w Pip WP1349 and to w Mel WD0514 and is inverted compared to the Wolbachia genes. (biomedcentral.com)

Wolbachia can be found in up to 60 percent of insects around the world, including butterflies and bees. (scienceblog.com)
Wolbachia bacteria are found naturally in many species of insects, some say that more than half of the insects are carriers of this bacterium, being the tiger mosquito among the species normally infected by this bacterium. (mosquitoalert.com)

Since Wolbachia-based vector control strategies depend upon the strength and consistency of CI, a greater understanding is needed on the CI relationships between wPip, wAlbA and wAlbB Wolbachia in Ae. (uky.edu)

Cryptic species of ground wētā (Hemiandrus maculifrons complex) are host to different lineages of Wolbachia which might explain their speciation without ecological or geographical separation. (wikipedia.org)

Wolbachia were detected in 28.1% of 89 wild-caught mosquito species, based on a polymerase chain reaction assay using ftsZ and wsp gene primers. (lshtm.ac.uk)
The widespread distribution of Wolbachia among mosquito species further supports their potential importance in the genetic control of disease vectors. (lshtm.ac.uk)

Julie Dunning-Hotopp, a Wolbachia genomics expert, helped with analysis of the data. (jcvi.org)

The genus Wolbachia is of considerable interest today due to its ubiquitous distribution, its many different evolutionary interactions, and its potential use as a biocontrol agent. (wikipedia.org)
An example of parthenogenesis induced by presence of Wolbachia are some species within the Trichogramma parasitoid wasp genus, which have evolved to procreate without males due to the presence of Wolbachia. (wikipedia.org)
Males are rare in this genus of wasp, possibly because many have been killed by that same strain of Wolbachia. (wikipedia.org)
Several host species, such as those within the genus Trichogramma, are so dependent on sexual differentiation of Wolbachia that they are unable to reproduce effectively without the bacteria in their bodies, and some might even be unable to survive uninfected. (wikipedia.org)
Wolbachia is a bacterial genus consisting of only one recognized species, Wolbachia pipientis , with several divergent supergroups. (uu.se)

There is strong genomic evidence that bacteria often acquire evolutionary novelties from outside their ancestral population by horizontal gene transfer. (mpkb.org)

Also, for example, take the bacterial species Bacillus anthracis , a species of bacteria that has two plasmids. (mpkb.org)

Some host species cannot reproduce, or even survive, without Wolbachia colonisation. (wikipedia.org)
Depending on the specific pair of Wolbachia and host species involved, the host males are either killed, converted into females, or prevented from successfully fertilizing the eggs of uninfected females. (jcvi.org)

Doxycycline is used to kill Wolbachia organisms which reduces inflammation, especially when administering an adulticide to kill the worms. (vin.com)

I am also working on the effect of Wolbachia on the host gene expression by using RNAseq. (uu.se)

Matthew Aliota, a scientist at the UW-Madison School of Veterinary Medicine (SVM) and first author of the paper - published today (July 1, 2016) in the journal Scientific Reports - says the bacteria could present a "novel biological control mechanism," aiding efforts to stop the spread of Zika virus. (scienceblog.com)
As of yet, the underlying molecular mechanism of CI and the genetic factors of Wolbachia that are involved are unknown. (uu.se)
Here, we use powerful Evolve and Resequence approaches in the mosquito, Wolbachia and in the virus to (1) understand the likely mechanism of pathogen blocking, and (2) determine the most likely genetic paths through which resistance will emerge in the mosquito and the virus. (grantome.com)

Eisen had found evidence of a Wolbachia in sequence traces from D. ananassae . (jcvi.org)

Here, we identify molecular and cellular mechanisms by which Wolbachia influences the molecularly distinct processes of germline stem cell (GSC) self-renewal and differentiation. (geneconvenevi.org)

The advantage of using Wolbachia bacteria with respect to the release of sterilized males is that individuals infected with the bacteria are not affected by their mating ability competing for wild females on equal terms as untreated males. (mosquitoalert.com)
But there is a crucial point in the success of using the bacteria: that males and females have different varieties of the bacteria to prevent the development of the offspring. (mosquitoalert.com)
We demonstrated that the observed decrease in CI penetrance with SR male age, is related to the previously described decrease in Wolbachia density, in particular of the wAlbA strain, occurring in aged superinfected males. (uky.edu)

They found that mosquitoes carrying Wolbachia were less likely to become infected with Zika virus after feeding on viral blood, and those that were infected were not capable of transmitting the virus in their saliva. (scienceblog.com)
We found two more Wolbachia , which was a striking result. (jcvi.org)
Two of these studies found that, depending on the Wolbachia variant, infected flies chose colder temperatures than uninfected individuals14,15. (solamonrenewableenergy.com)

Anatomy1

Organisms18

Diseases7

Analytical, Diagnostic and Therapeutic Techniques and Equipment1

Phenomena and Processes3

Information Science2

Health Care1

Geographicals1

Strains16

Aedes15

Infects4

Incompatibility10

Cytoplasmic1

Infect5

Endosymbiont1

Effects of Wolbachia infections2

Endosymbiotic bacteria2

Obligate1

Infection9

Populations3

Reproductive2

Genome11

Drosophila1

Symbiotic7

Insect species2

Manipulate2

Endemic areas1

Phylogenetic2

Mosquitoes infected1

Genomes2

Densities3

Species in the genus1

Symbiont1

Subgroup1

Prophage1

WMel1

Infections1

Genes4

Insects2

Vector1

Speciation1

Mosquito species2

Genomics1

Genus5

Horizontal gene tra1

Bacterial1

Host species2

Organisms1

Gene expression1

Mechanism3

Sequence1

Molecular1

Males3

Found3