Additional file 5: of Crossed beaks in a local Swiss chicken breed

Genotypes and diplotypes of Appenzeller Barthuhn and two other Swiss Chicken breeds. Genotypes of 12 variants and their diplotypes in LOC426217 of Appenzeller Barthuhn, Appenzeller Spitzhaubenhuhn and Schweizerhuhn. (XLSX 30 kb

Additional file 2: of Crossed beaks in a local Swiss chicken breed

Phenotype details of Appenzeller Barthuhn chickens with crossed beak and all cases used in the study. (XLSX 19 kb

Additional file 6: of Crossed beaks in a local Swiss chicken breed

GWAS of 53 cases and 102 controls. (A) Manhattan plot. The red line marks the 5% Bonferroni-corrected threshold for 341,115 independent tests (pBONF 1.47 × 10− 7). (B) MDS plot. (C) QQ plot. (TIFF 1480 kb

Additional file 4: of Crossed beaks in a local Swiss chicken breed

Table with all cases for phenotype description and genetic analyses. (XLSX 12 kb

Additional file 1: of Crossed beaks in a local Swiss chicken breed

Scheme of the breeding trial. In total six breeding units of comparable size, made up the parental generation: three units consisting of affected animals (orange units, three to four affected hens and one affected rooster) and three units consisting of control animals (blue units, five hens and one rooster). For the F1-generation, eggs of the six parental groups were collected and incubated. After hatching, chicks were reared until the age of 12 weeks. (TIFF 1025 kb

Additional file 3: of Crossed beaks in a local Swiss chicken breed

Phenotyping tool for the measurement of beak angles. The head is fixed between two screws, which sit in the orbita of the skull, and one caudal screw, which supports the caudal part of the head. The photograph is taken from directly above. Based on the photograph, the 0° axis is defined as perpendicular to the two screws and through the median plane of the head (central vertical line of the grid). The axis of the beak is defined by drawing a line along the base and middle part of the upper or lower beak (yellow line). (TIFF 10326 kb