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

SILVAngs

Check out our service for Next Generation Amplicon data

SILVA Alignment, Classification and Tree (ACT) Service

The SILVA ACT service combines alignment, search and classify as well as reconstruction of trees in a single web application.

SILVA ACT is available at: Opens internal link in current windowwww.arb-silva.de/act

SILVA Tree Viewer

The SILVA Tree Viewer is a web application to browse and query the SILVA guide trees.

A technical preview is available at Opens external link in new windowwww.arb-silva.de/treeviewer

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 windowwww.arb-home.de.

UniEuk

SILVA is a member of the Opens external link in new windowUniEuk project, a community-based project to achieve a universal taxonomic framework for Eukaryotes, focused primarily on protists. UniEuk is integrating information from relevant genetic markers and classical morphology-based data, validated by a comprehensive network of taxonomy experts.

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.

For the taxonomic framework:

Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO (2014) The SILVA and "All-species Living Tree Project (LTP)" taxonomic frameworks. Opens external link in new windowNucl. Acids Res. 42:D643-D648

Opens internal link in current windowFurther references

SILVA Terms of Use/License Information

SILVA follows 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. Any downloads provided are free for ACADEMIC users. Redistribution of these downloads or their derivates requires a reference to the official SILVA license terms. NON-ACADEMIC users need to acquire a SILVA Commercial License for utilisation of any downloads provided. Change of license model for commercial users in Fall 2018, please refer to the Opens internal link in current windowSILVA Terms of Use/License Information

Partners

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

          

SILVA RSS Feed + ARB & SILVA User Group

News

05.09.2018

de.NBI/GFBio Summer School on Data Management

The Ger­man Fed­er­a­tion for Bio­lo­gical Data (GFBio) and the Ger­man Net­work for Bioin­form­at­ics In­fra­struc­ture (de.NBI) are for the first time pro­mot­ing a joint sum­mer school to sup­port re­search­ers in man­aging their sci­entific data. 18 young sci­ent­ists met at the Braun­sch­weig Centre for Sys­tems Bio­logy. "Rid­ing the Data Life Cycle" is the title of

08.08.2018

The 13th de.NBI Quaterly Newsletter published

Main Topics: - SILVA and BRENDA are now ELIXIR Core Data Resources - ELIXIR All Hands meeting - ELIXIR Innovation and SME Forum

25.06.2018

SILVA is now an ELIXIR Core Data Resource

SILVA, operated by ELIXIR Germany, has today joined the list of ELIXIR Core Data Resources critically important for life science research. The ELIXIR Core Data Resources serve as a mark of the highest quality in biological data provision and stewardship and play a fundamental role in the long-term preservation of life science data.

05.06.2018

The "All Species Living Tree" version 132 released

The new version of the "All Species Living Tree" based on SILVA release 132 has been released.

go to Archive ->

User satisfaction survey

SILVA is now part of the German Network for Bioinformatics Infrastructure de.NBI. 

To evaluate and improve our quality of service we need your feedback. Please help us by participating in this short Opens external link in new windowsurvey.

SILVA SSU / LSU 132 - full release

      SSU Parc SSU Ref SSU Ref NR 99 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     13.12.17 13.12.17 13.12.17 13.12.17 13.12.17
Aligned rRNA sequences     6,073,181 2,090,668 695,171 907,382 198,843

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