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Figure 1 | BMC Developmental Biology

Figure 1

From: FGF signalling through RAS/MAPK and PI3K pathways regulates cell movement and gene expression in the chicken primitive streak without affecting E-cadherin expression

Figure 1

Domains of gene expression in the gastrula stage chicken embryo. A: Transverse section through the mid-streak region of a stage 4 embryo depicting domains represented by the expression patterns in B-O, B'-O' (green, lateral epiblast; pink, preingression epiblast; lavender, primitive streak; orange, medial mesoderm; purple, lateral mesoderm). B-O: Whole mount ISH localization of mRNAs coding for signalling molecules, receptors and growth factors in stage 4 embryos. B'-O': Transverse sections at the indicated levels through corresponding embryos in B-O. Abbreviations: EPI, epiblast; MES, mesoderm.

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