Due to the development of technology from conventional Sanger method to next-generation sequencing (NGS) techniques, DNA sequencing has transformed the genomics. NGS has improved the expense, scale of characterization of genome, and has significantly expanded the possibility of an investigation. Enormously comparable sequencing has demonstrated innovative bioinformatics tools, changing the assumption of genomics to address life issues at a genome- level.
Emerging and established evidence of various genomic databases have demonstrated that the NGS has played a great role in the establishment of the whole-genome sequence (WGS) and whole exome sequence (WES). Currently, sequencing allows disease investigation like prognosis (mutational status), diagnosis (DNA and RNA-based), treatment (therapeutic identification), and molecular phylogeny. Preferably, sequencing should be precise, rapid, and cover long read.
The elucidation of genomes from NGS platforms needs to be programmed and completely interconnected. In addition, the curation of data is very much necessary and helpful in an accurate annotation of the genome. Though retaining uniformity and precision in genome annotation is a challenging issue. Without annotation of the genome, sequencing data is meaningless. Consequently, appropriate reasonable investigation requires a constant and broad opinion of biological data.
Repetitive DNA sequences are abundant in a broad range of species, from bacteria to mammals, and they cover nearly half of the human genome. Repeats have always presented technical challenges for sequence alignment and assembly programs. Next-generation sequencing projects, with their short read lengths and high data volumes, have made these challenges more difficult.
From a computational perspective, repeats create ambiguities in alignment and assembly, which, in turn, can produce biases and errors when interpreting results. Simply ignoring repeats is not an option, as this creates problems of its own and may mean that important biological phenomena are missed. We discuss the computational problems surrounding repeats and describe strategies used by current bioinformatics systems to solve them.
We present to you, “Top 10 DNA Sequencing Companies – 2022.”