Figure 3. Manhattan plot presenting genome-wide association study results in Basenji progressive retinal atrophy (PRA). y-axis=Probability statistic (–log₁₀(P)) for association test analyzed using PLINK. X-Axis=single nucleotide polymorphisms ordered on chromosomes (chromosomes 39 and 41 represent the X-chromosome, and chromosome 40 the Y chromosome). The highest –log₁₀(P) values are observed on CFA4, CFA13, and CFA25 as denoted by the black arrows.