*Sequence number* is assigned manually or by a computer system to ensure there are
no duplicates. Some institutes prefer to zero-pad the number `00000102`.
The *suffix* allows differentiating samples of the same original material. The
exact meaning of the suffix is different for every institute.
The *suffix* allows differentiating samples of the same original material. A suffix
might be used after making a selection from the original accession (e.g. a
single seed descent) to be maintained as a separate sample.
The exact meaning of the suffix is different for every institute.
[cols="1,1,1,2", options="header"]
.Example accession numbers
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@@ -92,7 +94,9 @@ to obtain material from either collection.
Accession genus, species, species author, subtaxon and subtaxon authority are usually
known, but are subject to change after expert identification or change in taxonomic system.
https://npgsweb.ars-grin.gov/gringlobal/taxon/abouttaxonomy.aspx[GRIN Taxonomy for Plants] and the Mansfeld database can serve for validating accession taxa.
https://npgsweb.ars-grin.gov/gringlobal/taxon/abouttaxonomy.aspx[GRIN Taxonomy for Plants] and
the http://mansfeld.ipk-gatersleben.de/[Mansfeld's World Database of Agriculture and Horticultural Crops] can serve for validating accession taxa.