The 36 analyzed samples are visualized in 13 cluster diagrams for each SNP. The -axes represent allelic fractions that are calculated by the equation spot1/(spot1 + spot2), where spot1 and spot2 correspond to fluorescent signal intensity from primer extension of the first and the second allele, respectively. The -axes represent logarithmic value of the total fluorescent signal intensity. Circles indicate the different genotypes, where samples scored as heterozygous are situated in the middle circle with an optimal allelic fraction close to 0.5. Homozygous samples for the first allele and the second allele are located in the circles with allelic fractions close to 1 and 0, respectively. Note that, for SNP 10, the scoring with ASE is impossible, while PrASE generates distinct clusters.