| an annotated catalogue of salivary gland transcripts in the adult female mosquito, aedes aegypti. | saliva of blood-sucking arthropods contains a cocktail of antihemostatic agents and immunomodulators that help blood feeding. mosquitoes additionally feed on sugar meals and have specialized regions of their glands containing glycosidases and antimicrobials that might help control bacterial growth in the ingested meals. to expand our knowledge on the salivary cocktail of aedes aegypti, a vector of dengue and yellow fevers, we analyzed a set of 4,232 expressed sequence tags from cdna libraries of ... | 2007 | 17204158 |
| recombination is a major driving force of genetic diversity in the anaplasmataceae ehrlichia ruminantium. | the disease, heartwater, caused by the anaplasmataceae e. ruminantium, represents a major problem for tropical livestock and wild ruminants. up to now, no effective vaccine has been available due to a limited cross protection of vaccinal strains on field strains and a high genetic diversity of ehrlichia ruminantium within geographical locations. to address this issue, we inferred the genetic diversity and population structure of 194 e. ruminantium isolates circulating worldwide using multilocus ... | 2016 | 27747194 |
| the influence of interspecific competition and host preference on the phylogeography of two african ixodid tick species. | a comparative phylogeographic study on two economically important african tick species, amblyomma hebraeum and hyalomma rufipes was performed to test the influence of host specificity and host movement on dispersion. pairwise amova analyses of 277 mtdna coi sequences supported significant population differentiation among the majority of sampling sites. the geographic mitochondrial structure was not supported by nuclear its-2 sequencing, probably attributed to a recent divergence. the three-host ... | 2013 | 24130813 |
| new data regarding distribution of cattle ticks in the south-western indian ocean islands. | recent studies have produced new insight into the origin and distribution of some cattle ticks in the south-western indian ocean islands. rhipicephalus appendiculatus, introduced from tanzania in 2002, is now well established on grande comore but has not yet reached the other islands of the archipelago (mohéli, anjouan and mayotte). only one of the two clades identified in africa has settled so far. amblyomma variegatum, which was not supposed to be able to persist in the antananarivo region (13 ... | 2013 | 24016261 |
| simukunin from the salivary glands of the black fly simulium vittatum inhibits enzymes that regulate clotting and inflammatory responses. | black flies (diptera: simuliidae) feed on blood, and are important vectors of onchocerca volvulus, the etiolytic agent of river blindness. blood feeding depends on pharmacological properties of saliva, including anticoagulation, but the molecules responsible for this activity have not been well characterized. | 2012 | 22383955 |