Table 1

The candidate loci where only the affected brothers in the respective families are homozygous for a haplotype possibly IBD from a recent ancestor

Shared patient haplotypeShared parental haplotype
LocusLOD score*Begins (bp)Ends (bp)Size (Mb)Begins (bp)Ends (bp)Size (Mb)
Family 1
 4p16.23.01 (3.01)rs4689888 (4 569 460)rs17779675 (6 449 514)1.88rs4689888 (4 569 460)rs1400931 (18 752 731)14.18
 7q22.12.8 (3.01)rs4236541 (98 830 439)rs28365067 (99 272 310)0.44rs4729320 (96 551 820)rs6967487 (99 602 191)3.05
 5p15.310 (3.01)rs186893 (8 473 747)rs17225452 (8 873 310)0.39Same as in patients (three different haplotypes)0.39
 18q11.12.98 (3.01)rs2339102 (23 797 853)rs1609839 (24 027 419)0.23rs12959318 (11 643 985)rs12456229 (75 118 412)63.47
Family 2
 17pter-p22.12.53 (2.53)pter (0)rs3744405 (7 193 255)7.19Same as in patients7.19
 14q11.2–122.53 (2.53)rs8010057 (23 506 110)rs2332572 (26 341 293)2.83rs8010057 (23 506 110)rs1952267 (29 889 699)6.38
 7q36.22.48 (2.51)rs4621714 (153 356 432)rs10229774 (153 652 188)0.29Same as in patients0.29
  • *LOD scores obtained after detailed calculations are given in parentheses.

  • IBD, identical by descent; LOD, logarithm of the odds.