Figure 2From: Emergence of differentially regulated pathways associated with the development of regional specificity in chicken skin Developmental progress of feather skin and scale skin. Left side of chicken embryo: feather skin development from E7 to E9. Right side of chicken embryo: scale skin development from E9 to E11. The development stages for feather and scale skins are matched; top to down represents the developmental trend from undifferentiated skins to differentiated skins. During the process, skin gradually loses developmental plasticity in exchange for gaining regional specificity (right panel).Back to article page