Many species of phloem feeding insects are host to symbiotic bacteria, which provide their hosts with nutrients lacking from phloem. (umd.edu)
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)
Wolbachia, endosymbiotic bacteria of the order Rickettsiales, are widespread in arthropods but also present in nematodes. (unipv.it)
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)
We also carried out the first tests for the presence of endosymbiontic bacteria in Heliconius, and identified two distinct lineages of Wolbachia within H. e. chestertonii. (urosario.edu.co)
Development of the microfilariae within the animal depends on the presence of Wolbachia species bacteria, which acts symbiotically with the worms. (carbondaleah.com)
Bacteria of the genus Wolbachia are bacteria that live within the cells of their hosts. (asu.edu)
Lateral phage transfer in obligate intracellular bacteria (wolbachia): verification from natural populations. (mbl.edu)
The researchers settled on wMel, a Wolbachia bacteria strain that prior research has shown to be harmless to mosquitoes but reduces their susceptibility to the dengue virus. (edu.au)
Inflammatory reactions follow the death of microfilariae and are caused by the secretion of toxic products by granulocytes, the deposition of immune complexes in the tissues, and by inflammatory mechanisms induced by release of Wolbachia (bacteria infecting the filariae)‒derived products. (medscape.com)
Wolbachia is an endosymbiont bacteria found in many filariae that assists in reproduction and survival, including in O volvulus . (medscape.com)
Bacterium8
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 ( w Bm) is an obligate endosymbiotic bacterium of Brugia malayi , a parasitic filarial nematode of humans and one of the causative agents of lymphatic filariasis. (biomedcentral.com)
However, researchers claim Wolbachia bacterium is completely benign to humans. (real-agenda.com)
Wolbachia is an insect bacterium that has not been detected living inside humans or any other vertebrates. (real-agenda.com)
Wolbachia-mediated population suppression (Wolbachia suppression) is a vector control method used to reduce Aedes mosquito populations by introducing male mosquitoes infected with Wolbachia, a naturally occurring endosymbiotic bacterium. (cdc.gov)
The antibiotic drug doxycycline which kills the O. volvulus symbiotic bacterium Wolbachia resulting in irreversible elimination of skin microfilaria though direct effects on the endosymbiont is available. (glideae.org)
These include Release of Insects Carrying a Dominant Lethal system and Wolbachia , an endosymbiotic bacterium, to inhibit dengue virus in the vector. (who.int)
Endosymbiont1
Lack of influence by endosymbiont Wolbachia on virus titer in the common bed bug, Cimex lectularius. (ncsu.edu)
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)
Evidence also indicates that differences seen in the severe and mild strains of O volvulus relate to the amount of Wolbachia symbiote found in the different strains. (medscape.com)
When Wolbachia infects mosquitoes, the mosquitoes' ability to transmit Dengue virus is almost completely blocked. (real-agenda.com)
When Wolbachia-infected male mosquitoes mate with female wild mosquitoes, the resulting eggs will not hatch. (cdc.gov)
Because of that lack of progress, scientists have been looking for ways to reduce the number of mosquitoes that carry the virus in human populated areas. (edu.au)
The wMel strain of Wolbachia can reduce the permissiveness of Aedes aegypti mosquitoes to disseminated arboviral infections. (edu.au)
Drosophila5
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)
Here, we compare the behaviour of the mod - over-replicating Wolbachia popcorn strain in its native Drosophila melanogaster host to the same strain transinfected into a novel host, namely Drosophila simulans. (psu.edu)
Dengue fever2
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)
Despite a significant lack of data on dengue fever epidemics globally, epidemiologists like Ary Hoffmann, a professor at the School of Biosciences at Melbourne University, believe the vector is now present in all five continents, having enlarged its geographical scope in the past few decades. (springernature.app)
Aedes2
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)
We identified lack of community organization and leadership and increasing number of abandoned houses that could turn into Aedes aegypti breeding sites. (cdc.gov)
Insect5
However, in most non-model and pest insect species, empirical evidence for predictable modulation of gene expression levels is lacking. (geneconvenevi.org)
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)
Further measures can involve integration of sterile insect techniques, applying indigenous copepods, Wolbachia sp. (bvsalud.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)
In our research Wolbachia-infected insects are feeding on our researchers all the time and there is no sign of any human illness associated with insect Wolbachia. (real-agenda.com)
Pipientis1
Wolbachia is a bacterial genus consisting of only one recognized species, Wolbachia pipientis , with several divergent supergroups. (uu.se)
Bacterial3
Consequently, the working hypothesis has been that CI expression, although related to Wolbachia density, is also governed by unknown factors that are influenced by both host and bacterial genomes. (psu.edu)
Using the Wolbachia Bacterial Symbiont to Teach Inquiry-Based Science: A High School Laboratory Series. (mbl.edu)
They correlated this phenomenon with the activity of the bacterial parasite Wolbachia , which infects only the males. (icr.org)
Nematodes3
In filarial nematodes, including some human parasites, multiple lines of experimental evidence indicate that C and D supergroup Wolbachia are essential for the survival of the host, and here the symbiotic relationship is considered mutualistic. (unipv.it)
Although we currently lack data from several Wolbachia supergroups, notably F, our analysis supports a model wherein the putatively mutualist endosymbiotic relationship between Wolbachia and nematodes originated from a single transition event. (unipv.it)
Wolbachia exist in between seventeen percent and seventy-six percent of arthropods and nematodes. (asu.edu)
Species5
Wolbachia are maternally inherited endosymbionts that infect nearly half of all arthropod species. (nature.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)
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)
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)
The switch between sexuality and parthenogenesis in such species may be triggered by the season ( aphid , some gall wasps), or by a lack of males or by conditions that favour rapid population growth (rotifers and cladocerans like daphnia). (alchetron.com)
Genes3
Furthermore, length and, hence, information content of individual genes is limited, sometimes causing a lack of resolution in the inferred trees. (biomedcentral.com)
The association of these genes with Wolbachia prophage regions also provides a mechanism for the transfer. (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)
Genetic2
However, because of the large genetic distance between Wolbachia and the nearest outgroups, and the limited number of genomes so far available for large-scale analyses, current phylogenies do not provide robust answers. (unipv.it)
As of yet, the underlying molecular mechanism of CI and the genetic factors of Wolbachia that are involved are unknown. (uu.se)
Heartworm disease1
A research-based session will cover the latest studies on treating and managing heartworm disease, including surgical removal, the role of Wolbachia and management of heartworm disease with doxycycline. (dvm360.com)
Nutrients1
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)
Infection2
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)
Speciation1
The lack of congruence between molecular markers suggests that cryptic speciation is not a plausible explanation for the deep mitochondrial divergence in H. e chestertonii. (urosario.edu.co)
Hosts1
Estimates of Wolbachia density in the eggs, testes and whole flies of drosophilid hosts have been unable to predict the lack of cytoplasmic incompatibility (CI) expression in so-called mod - variants. (psu.edu)
Microfilariae1
Dead microfilariae in the eyes release Wolbachia that cause inflammation and can lead to interstitial keratitis, band keratopathy, faint iritis or iridocyclitis, posterior synechiae, distortion of the pupil, chorioretinal scarring of the fundus (Hissette-Ridley fundus), and other eye damage-leading to the expression river blindness. (medscape.com)
Vector2
Given the lack of a dengue vaccine, control of dengue depends on vector control. (who.int)
Dengue is a growing international public health problem for which a licensed vaccine, therapeutic drugs, and effective vector control programs are lacking. (cdc.gov)
Populations2
The lack of municipal services and the piles of garbage littering the streets attracted large populations of A. aegypti , which lay eggs in puddles, transmitting dengue to hundreds of people. (springernature.app)
However, CRISPR-based gene drives have not yet been deployed in nature, mostly because they are still a new technology that lacks a firm international regulatory framework, but also due to problems related to the evolution of resistance in mosquito populations that will stop the gene from spreading. (culturedplus.com)
Doxycycline1
1 ). Doxycycline, which is active against the endosymbi- ont Wolbachia spp. (cdc.gov)
Tissue1
It can be made to infect human tissue culture cells in the laboratory but these laboratory systems are very artificial and do not predict the actual ability of Wolbachia to infect an actual human being. (real-agenda.com)
Host5
We discuss our findings also in the light of how Wolbachia survive within both the native and the novel host. (nature.com)
We find only subtle effects of Wolbachia on host Tp which are strongly affected by experimental variation in adult, but not during juvenile life stages. (solamonrenewableenergy.com)
The bioinformatic examination on the genomes of these 3 E. ictaluri specific bacteriophages corroborate pre viously published data that signifies that these bacterio phages are lytic, and lack any mechanism for lysogenic conversion of their host. (hivprotease-signal.com)
I am also working on the effect of Wolbachia on the host gene expression by using RNAseq. (uu.se)
Flies1
Two of these studies found that, depending on the Wolbachia variant, infected flies chose colder temperatures than uninfected individuals14,15. (solamonrenewableenergy.com)
Help make a huge difference in the fight against mosquito-borne diseases and support us to protect more communities with our Wolbachia method. (worldmosquitoprogram.org)
Data1
The first objective of this project is to switch from underreported to clear cut data in each country to assess the severity of the problem, and in a second phase, we plan to implement methods of control that have shown their efficiency in other sites," she says, referencing a Wolbachia -based technique among these methods. (springernature.app)
Respondents with an income of $40,000 or more were 1.34 times as likely [95% CI: 1.03, 1.37] to support Wolbachia suppression than those who earned less than $40,000 annually. (cdc.gov)
Respondents who reported repellant use were 1.19 times as likely to support Wolbachia suppression [95% CI: 1.03, 1.37]. (cdc.gov)
In a half-day series of sessions, veterinarians will hear the latest on heartworm prophylaxis and lack of efficacy/resistance, followed by a cocktail-hour Q&A with a panel of experts. (dvm360.com)
Evidence1
Kammerer conducted breeding experiments on sea-squirts and other organisms at a time when Charles Darwin's 1859 theory of evolution lacked evidence to explain how offspring inherited traits from their parents. (asu.edu)
Researchers1
Possible challenges to the project implementation included the lack of geographic consistency between clusters defined by researchers and the participants' description of the communities' geographic boundaries. (cdc.gov)
Population1
Also, population attrition due to out-migration, and lack of community leaders and communication channels after Hurricane Maria could affect participation in project activities. (cdc.gov)