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Fig. 1. Cranial skull defects in the Axin2/ mice.
Lateral (A) and dorsal (B,C) views of 27-day-old control (+/+) and
Axin2 mutant (/) mice show that the skull is shortened
in the Axin2/ mice. Whole-mount (D,E) and
skeletal staining (F-I) analyses of the cranial skull reveal abnormalities of
the Axin2/ suture at 4 weeks. The arrowheads
indicate the sutures (black, metopic suture; white, jugum limitans) that lie
between the nasal (N) and frontal (F) bones. The jugum limitans has
disappeared and there is unilateral fusion of the metopic suture (arrows).
Scale bars: 4 mm in A-C; 2 mm in D,E; 1 mm in F-I.