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Fig. 6. Hox genes and the genetic network driving axial extension, mesoderm
segmentation and AP patterning. Fgf, Wnt and RA signalling are functionally
involved in axial extension (orange), somitogenesis (green) and AP patterning
(purple). The relationship between the Hox genes, the Cdx genes, the
segmentation genes of the Notch pathway and the three morphogenetic processes
are indicated. Unbroken lines indicate established interactions; broken lines
represent documented interactions that have not yet been established at the
molecular level.
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