Genotyping methods to detect known SNP Instrument mean costs§ Approximate reagent costs per SNP$ Approxim time-labour per SNP#
D-HPLC ++++ moderate very fast
SSCP + Low very laborious
Allele Specific Amplification (ASA) + very low moderate
Restriction Fragment Length Polymorphism (RFLP) + very low very laborious
FRET probe Allelic Discrimination (Hyb Probe®TaqMan®, Beacons® Scorpions®) ++ moderate moderate
Locked Nucleic Acid (LNA) probe ++ moderate moderate
Oligo ligation assay (SNPlex®) +++ high Fast
PCR-Invader®Assay +++ high Fast
High resolution melting (HRM) ++ low moderate
Pyrosequencing* +++ high Fast
Peptide nucleic acid-mediated Clamping PCR* + moderate moderate
Gene Chip technology (LabOnChip)* +++/++++ very high moderate
Maldi-TOF ++++ very high moderate
Conventional sequencing* ++ low moderate
§Approximate instrumentation list price were scored as + (<10000€); ++ (<50000€); +++ (<100000€), ++++ (>100000€).
$Reagent costs were scored as very low (<5€), low (<10€), moderate (<30€), high (<50€), very high (>50€).
#Time-labour refers input needed to perform a single test of multiple samples. It were scored as very fast (<1 hour), fast (<4 hours), moderate (<1 day), laborious (<2 day) very laborious (>2 working day).
*No address to allelic discrimination (mutant vs. wild type).
Table 1: Most common platforms used for genotyping at molecular level.