Microsatellite mutation	Alleles are called correctly but there is a size shift of 1–2 bp (in the LMSV2 data) or 1–4 bp (in the FMS data), depending on repeat type
Priming-site mutation	An individual is missing an allele from one of the parents or has inherited a “null” (nonamplifying) allele from a parent
Missed allele	An allele in the genotype is missed during calling
Sample swap	Sample is incorrectly labeled
Call error	Allele is incorrectly assigned