Selectome update: quality control and computational improvements to a database of positive selection

Moretti, Sébastien ; Laurenczy, Balazs ; Gharib, Walid H. ; Castella, Briséïs ; Kuzniar, Arnold ; Schabauer, Hannes ; Studer, Romain A. ; Valle, Mario ; Salamin, Nicolas ; Stockinger, Heinz ; Robinson-Rechavi, Marc

In: Nucleic Acids Research, 2014, vol. 42, no. D1, p. D917-D921

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    Summary
    Selectome (http://selectome.unil.ch/) is a database of positive selection, based on a branch-site likelihood test. This model estimates the number of nonsynonymous substitutions (dN) and synonymous substitutions (dS) to evaluate the variation in selective pressure (dN/dS ratio) over branches and over sites. Since the original release of Selectome, we have benchmarked and implemented a thorough quality control procedure on multiple sequence alignments, aiming to provide minimum false-positive results. We have also improved the computational efficiency of the branch-site test implementation, allowing larger data sets and more frequent updates. Release 6 of Selectome includes all gene trees from Ensembl for Primates and Glires, as well as a large set of vertebrate gene trees. A total of 6810 gene trees have some evidence of positive selection. Finally, the web interface has been improved to be more responsive and to facilitate searches and browsing