Figure 1.

The Rose‐comb locus in chicken. (a) Single‐combed wild‐type male r/r. (b) Rose‐combed male R/‐. (c) Schematic illustration of the three alleles, wild‐type—r (upper panel), R1 (middle panel), and R2 (lower panel). The locations of the CCDC108 and MNR2 genes in relation to the inversion break points are indicated. The small arrow representing the 91‐kb region containing the translocated 5′ end of CCDC108 and MNR2 is drawn out of scale. (d) Immunohistochemical labeling of MNR2 and SOX5 in wild‐type single comb (a, b) and Rose‐comb (c, d) sections from embryonic day (e) 6.5 (a, c) and 9 (b, d). Figures (a, b), and (d) from (Imsland et al., 2012)