Fig. 4From: Genetics of the phenotypic evolution in sheep: a molecular look at diversity-driving genesPhenotype variation in sheep horns. a Polled phenotype, b scurred phenotype, c horned phenotype (curled tightly close to the face), d horned phenotype (spiral and horizontal extension; found in Chinese Tibetan sheep), and e horned phenotype (multi-spiral and up-forwarded; found in Hungarian Racka sheep). Photo credits and courtesies are shown in Additional file 2: Table S14Back to article page