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

SILVA 126 - web release (Ref datasets and ARB files not updated)

  SSU Parc LSU Parc
Release date 04.04.2016   04.04.2016
Aligned rRNA sequences  5,366,469   645,932

SILVAngs

Check out our new service for Next Generation Amplicon data

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.

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

SILVA Terms of Use/License Information

SILVA uses a dual licensing model. In short, browsing the content of the SILVA webportal (including results of the data analysis services) and deploying this information is free for all users but Downloads are only free for ACADEMIC users (redistribution of these downloads or their derivates requires a reference to the SILVA license terms). NON-ACADEMIC users please contact us for utilisation of any downloads. More details at SILVA Terms of Use/License Information

Partners

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

          

SILVA RSS Feed + ARB & SILVA User Group

News

05.06.2016

The 4th de.NBI Quaterly Newsletter published

In the first year of funding of the German Network for Bioinformatics Infrastructure (de.NBI) all members of the consortium have established with great enthusiasm a very broad spectrum of excellent bioinformatics services and training courses that are increasingly used and attended by experimental research groups. In the near future, the de.NBI staff has to deal with additional exciting challenges, for instance the integration of de.NBI partner projects and the integration of de.NBI into ELIXIR.


06.05.2016

Great UniEuk Kick-Off meeting in Paris

UniEuk: A Universal taxonomic framework and integrated reference gene databases for Eukaryotic biology, ecology, and evolution.


04.04.2016

SILVA 126 released as a web release

The SILVA webpage has been updated to represent the sequences of EMBL-EBI/ENA release 126. This release includes all taxonomic bugfixes done for SILVA release 123.1.


29.03.2016

SILVA 123.1 released

SILVA SSU 123.1 is an update of the SSU 123 full release providing corrections to the SILVA SSU taxonomy. The sequence data have not been changed.


SILVA SSU / LSU 123 - 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     23.07.15 23.07.15 23.07.15 23.07.15 23.07.15
Aligned rRNA sequences     4,985,791 1,756,783 597,607 563,332 96,642

Differences between releases SSU 123 and 123.1

SILVA SSU 123.1 is an update of the SSU 123 full release providing corrections to the SILVA SSU taxonomy. The sequence data have not been changed. Updated ARB, FASTA, RAST and taxonomy files are provided in the Opens external link in new windowdownload section. The changes in the taxonomy can be found Opens external link in new windowhere.

The LSU 123 datasets have not been updated, therefore, the LSU 123 files are still provided. 

SILVA on Twitter!