Maria OnyangoTexas Tech University | TTU · Department of Biological Sciences
Maria Onyango
Doctor of Philosophy
About
14
Publications
3,508
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Citations
Introduction
I am interested in utilizing -omics to define novel 'choke points' that can be targeted as transmission barriers for vector-borne pathogens as well as understand the interactions between viral pathogen and their vector hosts.
In addition, I would like to study the mechanistic interactions between microbiome and their insect hosts as well as how they could modulate transmission efficiency of their vector hosts.
Additional affiliations
October 2009 - May 2012
International Livestock Research Institute, ILRI
Position
- Research Assistant
Description
- The study utilised 454 GS FLX Roche next generation sequencing platform and metagenomics approach to carry out a surveillance study of the insect-borne virus incidence in Kenya among humans and animals.
Education
October 2009 - October 2012
The university of Nairobi
Field of study
- Bsc. Biochemistry and Zoology
October 2005 - July 2009
Publications
Publications (14)
Background
Vector-borne pathogens must survive and replicate in the hostile environment of an insect’s midgut before successful dissemination. Midgut microbiota interfere with pathogen infection by activating the basal immunity of the mosquito and by synthesizing pathogen-inhibitory metabolites.
Methods
The goal of this study was to assess the inf...
Tsetse flies (Glossina spp.) house a population-dependent assortment of microorganisms that can include pathogenic African trypanosomes and maternally transmitted endosymbiotic bacteria, the latter of which mediate numerous aspects of their host’s metabolic, reproductive, and immune physiologies. One of these endosymbionts, Spiroplasma, was recentl...
Insect midgut microbial symbionts have been considered as an integral component in thermal adaptation due to their differential thermal sensitivity. Altered midgut microbial communities can influence both insect physiology and competence for important vector-borne pathogens. This study sought to gain insights into how Aedes aegypti midgut microbes...
Rapid and significant range expansion of both the Zika virus (ZIKV) and its Aedes vector species has resulted in the declaration of ZIKV as a global health threat. Successful transmission of ZIKV by its vector requires a complex series of interactions between these entities including the establishment, replication and dissemination of the virus wit...
An unprecedented spread of mosquito-borne viruses and increasing populations of mosquito vectors has led to an increase in the frequency of mosquito-borne virus disease outbreaks. Recent outbreaks of Zika virus (ZIKV) and yellow fever virus (YFV), among others have led to a concerted effort to understand the biology of mosquito-borne viruses and th...
Rapid and significant range expansion of both Zika virus (ZIKV) and its Aedes vector species has resulted in ZIKV being declared a global health threat. Mean temperatures are projected to increase globally, likely resulting in alterations of the transmission potential of mosquito-borne pathogens. To understand the effect of diurnal temperature rang...
Tsetse flies (Glossina spp.) are vectors of parasitic trypanosomes, which cause human (HAT) and animal African trypanosomiasis (AAT) in sub-Saharan Africa. In Uganda, Glos-sina fuscipes fuscipes (Gff) is the main vector of HAT, where it transmits Gambiense disease in the northwest and Rhodesiense disease in central, southeast and western regions. E...
Background
The advent of genotyping by Next Generation Sequencing has enabled rapid discovery of thousands of single nucleotide polymorphism (SNP) markers and high throughput genotyping of large populations at an affordable cost. Genotyping by sequencing (GBS), a reduced representation library sequencing method, allows highly multiplexed sequencing...
Background:
Culicoides imicola Kieffer, 1913 is the main vector of bluetongue virus (BTV) and African horse sickness virus (AHSV) in Sub-Saharan Africa. Understanding the population genetic structure of this midge and the nature of barriers to gene flow will lead to a deeper understanding of bluetongue epidemiology and more effective vector contro...
Bluetongue virus (BTV) is a major pathogen of ruminants that is transmitted by biting midges (Culicoides spp.). Australian BTV serotypes have origins in Asia and are distributed across the continent into two distinct episystems, one in the north and another in the east. Culicoides brevitarsis is the major vector of BTV in Australia and is distribut...
Background
The rising demand for pork has resulted in a massive expansion of pig production in Uganda. This has resulted in increased contact between humans and pigs. Pigs can act as reservoirs for emerging infectious diseases. Therefore identification of potential zoonotic pathogens is important for public health surveillance. In this study, durin...
Figure S1. Taxonomic classification of sequence reads used to build contigs for RNA pools B (Gulu district) and C (Lira district) based on BLASTN (E-value <0.001) against genebank non-redundant database.
Figure S2. Window showing alignment of amino acids of NDUV in this study with the selected alphaviruses used for phylogenetic reconstruction.
Sequence data. Fasta format data file showing alignment of amino acids of NDUV in this study with the selected alphaviruses used for phylogenetic reconstruction.