Table 5.
Y- chromosome short tandem repeat (Y-STR) combinations with minimum match probability (MP) for a specified number of Y-STR markers.1
| Number of loci |
Y-STR combinations with minimum MP2 | MP | KI = 1/MP3 |
|---|---|---|---|
| 1 | 15 | 0.1748 | 5.72 |
| 24 | 5, 15 | 0.0477 | 20.95 |
| 3 | 3, 5, 15 | 0.0178 | 56.25 |
| 4 | 1, 3, 5, 15 | 0.0083 | 121.1 |
| 5 | 1, 2, 3, 5, 15 | 0.0045 | 223.65 |
| 6 | 1, 2, 3, 5, 13, 15 | 0.0027 | 372.45 |
| 7 | 1, 2, 3, 5, 9, 13, 15 | 0.0020 | 501.29 |
| 8 | 1, 2, 3, 5, 9, 13, 14, 15 | 0.0016 | 620.91 |
| 9 | 1, 2, 3, 5, 9, 10, 13, 14, 15 | 0.0014 | 711.62 |
| 10 | 1, 2, 3, 5, 8, 9, 10, 13, 14, 15 | 0.0013 | 770.27 |
| 11 | 1, 2, 3, 4, 5, 8, 9, 10, 13, 14, 15 | 0.0012 | 819.92 |
| 12 | 0, 1, 2, 3, 4, 5, 8, 9, 10, 13, 14, 15 | 0.0012 | 847.22 |
| 13 | 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 14, 15 | 0.0012 | 866.46 |
| 14 | 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 14, 15 | 0.0011 | 876.41 |
| 15 | 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15 | 0.0011 | 886.59 |
| 16 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 | 0.0011 | 891.77 |
1This table was generated from the data of Budowle et al [9].
20 = DYS389I, 1 = DYS389II, 2 = DYS390, 3 = DYS456, 4 = DYS19, 5 = DYS458, 6 = DYS437, 7 = DYS438, 8 = DYS448, 9 = Y GATA H4, 10 = DYS391, 11 = DYS392, 12 = DYS393, 13 = DYS439, 14 = DYS635, and 15 = DYS385.
3Kinship index (KI) for true paternal lineage is the inverse of MP.
4For example, in all 2-loci Y-STR haplotype combinations (total 16 × 15 ÷ 2 = 120), the combination DYS458 and DYS385 ('5, 15' in the second row) had the lowest MP.