Following Axel’s message, these are accessions with INSTCODE=RUS001 and ACCENUMB=10 https://www.genesys-pgr.org/acn/RUS001/10 Genesys PGR portal and probably EURISCO use genus to differentiate between these accessions. As for the mandatory fields: INSTCODE, ACCENUMB and GENUS are a must, everything else must be optional. Note that in the odd case where an accession is reclassified (or taxonomy changes) it may be assigned a different genus and the connection is lost (hence the PUIDs). Best, Matija Obreza Global Crop Diversity Trust Platz der Vereinten Nationen 7 53113 Bonn, Germany Office: +49 228 85427 128 www.croptrust.org Conserving Crop Diversity, Forever ######################################################################## To unsubscribe from the GLIS-PGRFA-L list, click the following link: https://listserv.fao.org/cgi-bin/wa?SUBED1=GLIS-PGRFA-L&A=1