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Table 4 Density and accuracy – SNP selection by tagging or equidistancea

From: Impact of marker density on the accuracy of association mapping

  

Locus C

Locus D

R2 (LDU, kb)

No. SNPs (kb/SNP)

Tagger

E_LD

E_kb

Tagger

E_LD

E_kb

Full

1658 (10)

20

20

20

130

130

130

0.8 (0.013,7)

1080b (15)

35

20

30

130

124

130

0.6 (0.025,10)

874 (18)

56

-16

27

545

124

551

0.4 (0.047,15)

657 (24)

106

42

63

124

123

117

0.2 (0.099,27)

421 (38)

125

14

-23

537

112

231

  1. aLocation error for SNPs selected by Tagger or equal LDU (E_LD) or kb (E_kb) distance in a candidate region of 15805.710 kb with rare SNPs included. Regions were fixed at 10 LDUs for Loci C (30997–33398 kb) and D (36784–37792 kb). Disease variant C was not present except in the full data set. Tilted LD map.
  2. b1079 for E_LD.