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Welcome to the KeyDNAtools web site. This site allows the identification of eukaryotic SSU rRNA gene sequences(small subunit or 18S) and potential chimera.

For more informations, please download the tutorial.

Sponsors : CNRS (Centre National de la Recherche Scientifique, France). This work is integrated inside the project AQUAPARADOX financed by the ANR (Agence Nationale de la recherche)

Go and sudmit directly a FASTA file
List of potential Chimera detected by the KeyDNAtools
A list of potential chimera detected by the KeyDNAtools is now available in excel format. All of these 18S sequences are deposited in GenBank. You can find this file in the .
NEW annotation
NewsThe 21 of November 2008: Annotation of Fungi, metazoans, Charophyta, Rhodophyta, and Chlorophyta have been improved in this present version. Especially, the KeyDNAtools is now able to discriminate the different families inside the Pezizomycotina.
NEW annotation
News15 of August 2008 : Annotation of Ciliates, Amoebozoa, Haptophytes, Stramenopiles, and Cryptophytes have been improved. Thanks a lot to Francisco Rodriguez to help us with Cryptophytes.
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