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Fig. 2. Neurod1 and Math3 partially restore the optic nerve in
Math5-null mice. (A) Dissected eyes from P30 mice. From
left to right: Math5lacZ-KI/+,
Math5Neurod1-KI/lacZ-KI and
Math5lacZ-KI/lacZ-KI. (A1,A2) Cross-sections
of the optic nerves from Math5lacZ-KI/+ and
Math5Neurod1-KI/lacZ-KI dissected eyes shown in A were
stained with Cresyl Fast Violet. (B) Histological sections of P30 eyes
from wild-type and Math5Neurod1-KI/Math3-KI littermates.
Arrowheads indicate the optic nerves. The double arrowhead indicates a rosette
structure sometimes seen in Math5Neurod1-KI/Math3-KI
retinas (inset). (B1,B2) Pou4f2 expression in wild-type and
Math5Neurod1-KI/Math3-KI retinal sections. Representative
lateral regions were used for comparison. ONL, outer nuclear layer; INL, inner
nuclear layer; GCL, ganglion cell layer. Scale bars: 50 µm in A1; 200 µm
in B.