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    Research: Dealing with the Data Deluge -- New Strategies in Prokaryotic Genome Analysis
    Submitted by Dr. Leonid Zaslavsky; posted on Friday, July 01, 2016



    Recent technological innovations have ignited an explosion in microbial genome sequencing that has fundamentally changed our understanding of biology of microbes and profoundly impacted public health policy. This huge increase in DNA sequence data presents new challenges for the annotation, analysis, and visualization bioinformatics tools. New strategies have been designed to bring an order to this genome sequence shockwave and improve the usability of associated data. Genomes are organized in a hierarchical distance tree using single-copy ribosomal protein marker distances for distance calculation. Protein distance measures dissimilarity between markers of the same type and the subsequent genomic distance averages over the majority of marker-distances, ignoring the outliers. More than 30,000 genomes from public archives have been organized in a marker distance tree resulting in 6,438 species-level clades representing 7,597 taxonomic species. This computational infrastructure provides a foundation for prokaryotic gene and genome analysis, allowing easy access to pre-calculated genome groups at various distance levels. One of the most challenging problems in the current data deluge is the presentation of the relevant data at an appropriate resolution for each application, eliminating data redundancy but keeping biologically interesting variations.


    Leonid Zaslavsky, Stacy Ciufo, Boris Fedorov, Boris Kiryutin, Igor Tolstoy and Tatiana Tatusova. 2016. Dealing with the Data Deluge – New Strategies in Prokaryotic Genome Analysis. Next Generation Sequencing – Advances, Applications and Challenges, Dr. Jerzy Kulski (Ed.), InTech (doi: 10.5772/62125).[...]lysis

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