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Whole genome sequencing (WGS) is the process of determining the entirety, or nearly the entirety, of the DNA sequence of an organism's genome at a single time. [2] This entails sequencing all of an organism's chromosomal DNA as well as DNA contained in the mitochondria and, for plants, in the chloroplast .
The average coverage for a whole genome can be calculated from the length of the original genome (G), the number of reads (N), and the average read length (L) as /. For example, a hypothetical genome with 2,000 base pairs reconstructed from 8 reads with an average length of 500 nucleotides will have 2× redundancy.
Whereas the methods above describe various sequencing methods, separate related terms are used when a large portion of a genome is sequenced. Several platforms were developed to perform exome sequencing (a subset of all DNA across all chromosomes that encode genes) or whole genome sequencing (sequencing of the all nuclear DNA of a human).
The addition of whole genome sequencing (WGS) allowed for identification of strains of TB which could then be put in a chronological cluster map. These cluster maps show the origin of cases and the time in which those cases arose. This gives a much clearer picture of transmission dynamics and allows for better control and prevention of ...
Whole genome sequencing, a laboratory process that determines the complete DNA sequence of an organism's genome at a single time; World Geodetic System, a reference frame for the earth for use in geodesy and navigation; Wideband Global SATCOM, a United States and Australian military communication satellite system
Alternatively, if the genome of the organism that originated the EST has been sequenced, one can align the EST sequence to that genome using a computer. The current understanding of the human set of genes (as of 2006) includes the existence of thousands of genes based solely on EST evidence. In this respect, ESTs have become a tool to refine ...
The whole genome sequencing technique was first applied to the DNA methylation mapping at single nucleotide resolution to Arabidopsis thaliana in 2008, and shortly after in 2009, the first single-base-resolution DNA methylation map of the entire human genome was created using whole genome bisulfite sequencing.
The process of extensive BAC library creation and tiling path selection, however, make hierarchical shotgun sequencing slow and labor-intensive. Now that the technology is available and the reliability of the data demonstrated, [14] the speed and cost efficiency of whole-genome shotgun sequencing has made it the primary method for genome ...
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