The microbial pan-genome

TL;DR: The main goal is to identify the genetic features shared by nonrelated organisms belonging to ecologically similar microbiotas – and ultimately to disclose the genetic footprint of the bacterial ecotype capable of surviving in the gut of homeothermic hosts.

TL;DR: It is demonstrated here that characterizing a pan-genome of a given taxon using sequences generated from different genome projects can misguide subsequent genome comparison studies when a set of incorrect strains is selected as input.

TL;DR: The manuscript structure and author's contributions are described as follows: C. pseudotuberculosis state of the art, biovar ovis, and manuscript Structure and author’s contributions.

TL;DR: The authors found evidence of genome expansion in Streptomyces sister-taxa and hypothesize that a recent demographic range expansion drove increases in genome size through a non-adaptive mechanism.

TL;DR: Over 1.2 million previously unknown genes represented in these samples, including more than 782 new rhodopsin-like photoreceptors are identified, suggesting substantial oceanic microbial diversity.

TL;DR: The genomic sequence of six strains representing the five major disease-causing serotypes of Streptococcus agalactiae, the main cause of neonatal infection in humans, was generated and Mathematical extrapolation of the data suggests that the gene reservoir available for inclusion in the S. agalactic pan-genome is vast and that unique genes will continue to be identified even after sequencing hundreds of genomes.

TL;DR: Mobile elements within genomes have driven genome evolution in diverse ways and are becoming useful tools for learning more about genome evolution and gene function.

TL;DR: The current review presents the available genomics and biological data on prophages from bacterial pathogens in an evolutionary framework to demonstrate that the chromosomes from bacteria and their viruses (bacteriophages) are coevolving.