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Fig. 5. Aberrant interzone formation in Prx1-Hif1
autopod. (A-D) In situ hybridizations for Gdf5.
Whole-mount at E12.5 (A) and E13.5 (B) and sections at E13.5 (C) and E14.5 (D)
show noticeable differences in the expression patterns between
Prx1-Hif1
and control; white and black arrowheads indicate
interzone area. (E) Noggin expression at E14.5. Red arrows indicate
interzone area. (F-I) Higher magnification of the joint located between
the first and the second phalanges of E15.5 control and
Prx1-Hif1
autopods. (F) H&E staining. (G-I) Sections were
hybridized with RNA probes for Gdf5 (G), Wnt9A (H) and
Bmp2 (I).