Figure 6. Presence/absence of a
kidney-shaped appearance as a function of hatch and scan group. Panel A
shows the proportion of kidney-shaped lenses as a function of hatch
(i.e., batches of chickens hatched and phenotyped together). Note that
for some hatches (e.g., hatches 3, 14, 18, 21, 23, and 25) none of the
lenses had a kidney shape, yet for other hatches (e.g., hatches 15 and
17) kidney-shaped lenses were the norm. Panel B shows the
proportion of kidney-shaped lenses as a function of scan group (i.e.,
groups of eyes that were MRI scanned at the same time). Note that the
proportion of kidney-shaped lenses was approximately uniform across
scan groups.