Table 1.
The population-specific FST values of three chicken groups.
Table 2.
NST for the three dopamine receptor genes among three chicken varieties.
Table 3.
Alignment of the amino acid sequences corresponding to DRD4 exon 1 for the four Phasianid groups.
Figure 1.
Three-dimensional structure of the DRD4 protein for domesticated chickens.
The disordered region (arrow) is the region of proline repeats located on the outside of the cell membrane which receives dopamine released from the synaptic cell.
Figure 2.
The three domesticated varieties examined in this study.
In Japan, there are 17 distinct varieties of ornamental domesticated chickens, which are famous for their characteristic varied body color and forms. These chickens continue to be bred for these different characteristics by breeders.
Table 4.
List of samples from eight fighting cocks (Shamo), nine long-crowing chickens (Naganakidori), nine ornamental chickens, one red junglefowl, and one pheasant.
Table 5.
Primers used for amplifying the DRD2, DRD3, and DRD4 genes.