Fig. 1.

Genome-wide association scan (GWAS) for tiny size as a binary trait. Dogs from nine breeds (n = 93) with breed-average withers heights of 10 in. or smaller were coded “tiny,” while dogs from 60 small, medium, or large breeds were coded “control” (n = 676). Achondrodysplastic breeds were excluded from the analysis. The x axis shows each marker’s position in the genome