The microbial pan-genome

TL;DR: This study integrates high-throughput sequencing data from 750 lake sediment samples to investigate bacterial community diversity and biogeography across different climate zones, revealing higher diversity in temperate and cold zones and significant climate-driven variations in community composition.

TL;DR: The introduction of whole genome sequencing has provided new insights into the levels and types of variation segregating in what are considered “robust” bacterial species, and data suggest that a species concept based upon the classic Biological Species Concept may well serve in many cases.

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.