SILVA is a ribosomal RNA database[1][2][3] established in collaboration between the Microbial Genomics Group at the Max Planck Institute for Marine Microbiology in Bremen, Germany, the Department of Microbiology at the Technical University Munich, and Ribocon.
[4][5] Release 117 of the database (January 2014) held more than 4,000,000 small subunit (SSU - 16S/18S) and 400,000 large subunit (LSU - 23S/28S) sequences.
[6][failed verification] Sequences are provided as files for the ARB software environment.
[4]