Bacterial genomes exhibit a wide range of compositional diversity, most spectacularly represented by variation in genome GC content, which varies in different organisms from as low as 17% to as high as 75%. The nature of the biological processes underlying these differences has been long debated and two polarizing interpretations have been advanced, one proposing that GC content is driven by genome-specific mutational biases (the mutational hypothesis), and one that it reflects different selective processes in different organisms. "Luciano Brocchier, The GC Content of Bacterial Genomes" PrimeOA Publications is among best open access publishers with expert reviewers and renowned scientists in its editorial board. Both editors and reviewers actively participate in the peer-review process and helps in completing the review process within 21 days. Apart from that PrimeOA Publications organizes more than 80 International Scientific conferences.