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Fig. 1 | BMC Genetics

Fig. 1

From: Circadian CLOCK gene polymorphisms in relation to sleep patterns and obesity in African Americans: findings from the Jackson heart study

Fig. 1

Linkage disequilibrium (LD) plot across the CLOCK gene: The horizontal white bar depicts the 117-kb DNA segment of chromosome 4q12 analyzed in the sample. In the LD plot each diamond represents the magnitude of LD for a single pair of markers. Black indicates strong LD (r2 = 1.0); white indicates no LD (r2 = 0); and the gray tones indicate intermediate LD. The numbers inside the diamonds stand for r2values

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