Search results
Results From The WOW.Com Content Network
One such surveillance program is the Global Virome Project (GVP) an international collaborative research initiative based at the One Health Institute at the University of California, Davis. [ 29 ] [ 30 ] The GVP aims to boost infectious disease surveillance around the globe by using low cost sequencing methods in high risk countries to prevent ...
A systematic exploration of the viruses that infect humans (the human virome) is important and feasible with these methods. Polymerase chain reaction is a tool to amplify and detect specific DNA sequences. It can be used to help characterize the virome, but it is limited by the need for at least partial DNA sequence information.
Sequencing is the only diagnostic method that will provide the full sequence of a virus genome. Hence, it provides the most information about very small differences between two viruses that would look the same using other diagnostic tests. Currently it is only used when this depth of information is required.
Virome refers to the assemblage of viruses [1] [2] that is often investigated and described by metagenomic sequencing of viral nucleic acids [3] that are found associated with a particular ecosystem, organism or holobiont. The word is frequently used to describe environmental viral shotgun metagenomes.
The sequence-driven approach to screening is limited by the breadth and accuracy of gene functions present in public sequence databases. In practice, experiments make use of a combination of both functional and sequence-based approaches based upon the function of interest, the complexity of the sample to be screened, and other factors.
The data may also contain errors, caused by limitations in the DNA sequencing technique or by errors during PCR amplification. DNA sequencer manufacturers use a number of different methods to detect which DNA bases are present. The specific protocols applied in different sequencing platforms have an impact in the final data that is generated.
During sequencing, each base in the template is sequenced twice, and the resulting data are decoded according to this scheme. SOLiD (Sequencing by Oligonucleotide Ligation and Detection) is a next-generation DNA sequencing technology developed by Life Technologies and has been commercially available since
Bulked segregant analysis (BSA) is a technique used to identify genetic markers associated with a mutant phenotype. This allows geneticists to discover genes conferring certain traits of interest, such as disease resistance or susceptibility. This technique involves forming two groups that display opposing phenotypes for a trait of interest.