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. Author manuscript; available in PMC: 2022 Mar 25.
Published in final edited form as: Neurobiol Aging. 2008 Apr 2;30(12):1986–1991. doi: 10.1016/j.neurobiolaging.2008.02.008

Fig. 2.

Fig. 2.

Data from HumanHap240S beadchips. For each autosome, plots depicting genotypes for all SNPs are indicated for both siblings. The plot shows the B allele frequency across the chromosome. Genotypes for BB have an allele frequency of 1; heterozygous (AB) genotypes have an allele frequency of 0.5; and AA genotypes have an allele frequency of 0. Regions of shared homozygosity (>1 MB) between siblings are indicated in gray boxes. Homozygous deletions in chromosomes 2p22.3 (locus number 0532 in the Database of Genomic Variants) and 4q26 (locus number 9064), are indicated with an arrow. Regions with significant associations in the study by Farrer et al. (2003) are indicated with black squares underneath the specific chromosomes.