Statistical information from GOLD data as of September 2011. (A) Evolution of the complete, incomplete and total number of projects monitored in GOLD. Genome projects in GOLD: 11 472. (B) Evolution of the complete projects monitored in GOLD separated into finished and permanent drafts. Complete genome projects in GOLD: 2907. (C) Distribution of the 340 metagenome projects in GOLD across the three major metagenome classification categories. Classification distribution of metagenome projects 340. (D) Phylogenetic distribution of the 8.448 bacterial genome projects.