SILVA

Welcome to the SILVA rRNA database project

A comprehensive on-line resource for quality checked and aligned ribosomal RNA sequence data.

SILVA provides comprehensive, quality checked and regularly updated datasets of aligned small (16S/18S, SSU) and large subunit (23S/28S, LSU) ribosomal RNA (rRNA) sequences for all three domains of life (Bacteria, Archaea and Eukarya).

SILVA are the official databases of the software package ARB.

For more background information Opens internal link in current windowClick here

ARB

The software package ARB represents a graphically-oriented, fully-integrated package of cooperating software tools for handling and analysis of sequence information.

The ARB project has been started more than 15 years ago by Wolfgang Ludwig at the Technical University in Munich, Germany, see Opens external link in new window www.arb-home.de.

The MEGX.net data portal

Visit our partner site www.megx.net, the data portal for Marine Ecological Genomix, to get a feeling how your research can be improved using integrated databases.

SILVA Terms of Use/License Information

SILVA uses a dual licensing model. In short, browsing and deploying the SILVA database content displayed on the SILVA webportal is free for all (academic and non-academic users) whereas all downloads are only free for academic users. Both, academic and non-academic users should have a look at the SILVA Terms of Use/License Information for more details.

SILVA RSS Feed + ARB & SILVA User Group

Partners

Please visit our partners. They facilitate the SILVA  database project.

          

News

24.07.2014

SILVA 119 released

Finally done: SILVA 119 is released. Highlights: Improved taxonomy, especially for the Eukaryotes, all sequences in SILVA are classified, SSU Seed improved for Fungi & several bugs fixed.


12.05.2014

Thank You for 2000 Citations

The SILVA team says THANK YOU for citing us over 2000 times. We are honoured by your trust and motivated to make SILVA the best resource for rRNAs ever.


01.05.2014

Sneak preview on SILVA release 119

First statistics about SILVA release 119.


26.04.2014

Preparation of SILVA release 119 has started

SILVA 119 will come as a full release. Preparation has started and we expect the release to be finished in June 2014.


SILVAngs

Check out our new service for Next Generation Amplicon data

SILVA 119 - full release

      SSU Parc SSU Ref SSU Ref NR LSU Parc LSU Ref
Minimal length     300 1200/900 1200/900 300 1900
Quality filtering     basic strong strong basic strong
Guide Tree     no no yes no yes
Release date     24.07.14 24.07.14 24.07.14 24.07.14 24.07.14
Aligned rRNA sequences     4,346,367 1,583,868 534,968 446,998 57,546

Citations

 

Quast C, Pruesse E, Yilmaz P, Gerken J, Schweer T, Yarza P, Peplies J, Glöckner FO (2013) The SILVA ribosomal RNA gene database project: improved data processing and web-based tools. Opens external link in new windowNucl. Acids Res. 41 (D1): D590-D596.

If you use SINA please cite:

Pruesse, E, Peplies, J and Glöckner, FO (2012) SINA: accurate high-throughput multiple sequence alignment of ribosomal RNA genes. Opens external link in new windowBioinformatics, 28, 1823-1829

Opens internal link in current windowFurther references