Title |
Unique core genomes of the bacterial family vibrionaceae: insights into niche adaptation and speciation
|
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Published in |
BMC Genomics, May 2012
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DOI | 10.1186/1471-2164-13-179 |
Pubmed ID | |
Authors |
Tim Kahlke, Alexander Goesmann, Erik Hjerde, Nils Peder Willassen, Peik Haugen |
Abstract |
The criteria for defining bacterial species and even the concept of bacterial species itself are under debate, and the discussion is apparently intensifying as more genome sequence data is becoming available. However, it is still unclear how the new advances in genomics should be used most efficiently to address this question. In this study we identify genes that are common to any group of genomes in our dataset, to determine whether genes specific to a particular taxon exist and to investigate their potential role in adaptation of bacteria to their specific niche. These genes were named unique core genes. Additionally, we investigate the existence and importance of unique core genes that are found in isolates of phylogenetically non-coherent groups. These groups of isolates, that share a genetic feature without sharing a closest common ancestor, are termed genophyletic groups. |
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Mendeley readers
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