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Figure 3 | BMC Genetics

Figure 3

From: Linkage analysis of alcoholism-related electrophysiological phenotypes: genome scans with microsatellites compared to single-nucleotide polymorphisms

Figure 3

Sib-pair QTL results of P300 amplitude, stratified by smoking status. Linkage results are shown for MS markers (A, N = 735 sib-pairs) and SNPs (B, N = 718 sib-pairs). The negative log of the asymptotic p-value is plotted over distance in cM. Results are shown for the entire group (thin black line), the smoking subgroup (thick tan line), and the non-smoking subgroup (thick black line). Sample sizes in sib-pairs are 228 for MS smoking, 220 for MS non-smoking, 220 for SNP smoking, and 214 for SNP non-smoking groups.

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