Survey of fibroblast growth factor expression during chick organogenesis

Members of the extensive fibroblast growth factor (FGF) family play many key roles during embryonic development. In later development, during the course of organogenesis, these factors have been shown to direct distinct cellular pathways within the context of a particular organ system. To gain more insight into the processes that these factors may be controlling, we conducted a survey of the expression of known FGF family members in chick embryos at stages 18-25. We show the expression patterns of fgf-2, -3, -4, -8, -10, -12, -13, -14, and -18 in the head, trunk, limbs, heart, and tail of the embryo.