Table 4.

Chromosomal organization and quartiles of the genome, defined according to extent of linkage disequilibrium



Genome covered by HapMap

Genome quartiles, defined using LD

Chromosome organization
Mean
(±S.E.)
(Low LD) Q1
Q2
Q3
(High LD) Q4
Trend
Within 5 Mb of centromere 555.4 (±9.7) 311.7 355.5 480.5 1074.0 Increases with LD
Within 10 Mb of centromere 1227.0 (±13.9) 973.7 993.8 1138.3 1802.1 Increases with LD
Within 15 Mb of centromere 1919.1 (±16.7) 1670.1 1699.7 1850.0 2456.8 Increases with LD
Within 5 Mb of telomere 392.5 (±8.2) 861.8 367.9 232.4 108.1 Decreases with LD
Within 10 Mb of telomere 806.7 (±11.5) 1721.1 797.5 487.8 220.4 Decreases with LD
Within 15 Mb of telomere 1220.6 (±13.9) 2407.8 1247.8 796.3 430.2 Decreases with LD
Within 5 Mb of heterochromatin 323.2 (±7.5) 180.6 229.2 282.8 600.2 Increases with LD
Within 10 Mb of heterochromatin 760.3 (±11.2) 553.6 644.7 717.3 1125.7 Increases with LD
Within 15 Mb of heterochromatin 1205.7 (±13.8) 1013.4 1167.0 1168.0 1474.3 Increases with LD
Large genomic duplications 365.9 (±6.4) 237.3 283.6 415.1 527.5 Increases with LD
Large genomic duplications (cis) 265.5 (±5.5) 153.5 191.4 307.9 409.1 Increases with LD
Large genomic duplications (trans)
159.8
(±3.9)
118.7
136.2
182.2
201.9
Increases with LD

[i] Proportion of bases in each category (per 10,000 bases) is presented for each genomic quartile.