1.2 Accession number (1)
This number serves as a unique identifier for accessions within a genebank
collection, and is assigned when a sample is entered into the genebank collection.
Once assigned, this number should never be reassigned to another accession in the
collection. Even if an accession is lost, its assigned number should never be reused.
Letters should be used before the number to identify the genebank or national
system (e.g. CGN indicates an accession from the genebank at Wageningen, The
Netherlands; PI indicates an accession within the U.S. system; a prefix of IRGC
indicates an accession from the genebank at IRRI).