Approach for classification and taxonomy within family Rickettsiaceae based on the Formal Order Analysis
- PMID: 26423020
- DOI: 10.1016/j.micinf.2015.09.012
Approach for classification and taxonomy within family Rickettsiaceae based on the Formal Order Analysis
Abstract
Genome sequences of 36 Rickettsia and Orientia were analyzed using Formal Order Analysis (FOA). This approach takes into account arrangement of nucleotides in each sequence. A numerical characteristic, the average distance (remoteness) - "g" was used to compare of genomes. Our results corroborated previous separation of three groups within the genus Rickettsia, including typhus group, classic spotted fever group, and the ancestral group and Orientia as a separate genus. Rickettsia felis URRWXCal2 and R. akari Hartford were not in the same group based on FOA, therefore designation of a so-called transitional Rickettsia group could not be confirmed with this approach.
Keywords: Average distance (remoteness); Classification; Formal Order Analysis; Genome; Rickettsia; Taxonomy.
Copyright © 2015 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.
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