The results of the evaluation of general primers for 16S rDNA amplification have now been published in NAR. Many thanks for your support.

Taxonomic ranks mapping file for the new SILVA eukaryotic taxonomy is now ready! Please have a look at the ETWG project page for more information and for downloading the spreadsheet file.

Due to some missing data in the fields bio_material, country, pcr_primers and tax_xref_embl in the ARB datasets we updated all ARB files.