A proposal for storing interspecific genetic maps in Chado:
1. Create an organism record to represent multiple or unknown species, using
the "spp." abbreviation. For example, "Arachis spp." represents multiple or unknown Arachis (peanut) species.
2. Use the stock table to represent the interspecific mapping population and
parents (which may themselves be interspecific) and link the organism_id field to the "spp." record. Use a new
stock_organism table to link the interspecific stock record to two or more species, represented by organism records.