The documentation_t type is a string of characters allowing to document an instance in the database. The organelle_t type allows to specify a value indicating on which organelle is located another element Indicates that the marker corresponds to a locus belonging the nuclear genome Indicates that the marker corresponds to a locus belonging the chloroplastic genome Indicates that the marker corresponds to a locus belonging the mitochondrial genome The iupc_t type is a string of characters symbolizing nucleotides in the iupac system, and thus belonging to the folowing list of letters: A,C,G,T,U,R,Y,M,K,W,S,B,D,H,V,N. The type also contrains the sequence to be written in upper cases. The primers_t type gathers several (usually two) primer_t elements This type describes a PCR primer. It has a mandatory attribut "name" containing a unique identifier. Primer is described by ... The primer_t type has an attribute name specifying its name, and includes a sequence element specifying its nucleotide sequence. The nucleic sequence of the primer. The primer length must be greater than 15bp The name of the primer