The paper describing the SILVA ribosomal RNA (rRNA) database project has been accepted for publication in Nucleic Acids Research. If you find SILVA a useful resource for your research or applications please cite:
Pruesse, E., C. Quast, K. Knittel, B. Fuchs, W. Ludwig, J. Peplies, and F. O. Glöckner. SILVA: a comprehensive online resource for quality checked and aligned ribosomal RNA sequence data compatible with ARB. Nucleic Acid Res. in press