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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Curr Top Dev Biol. 2020 Jan 11;136:167–193. doi: 10.1016/bs.ctdb.2019.11.014

Figure 5. Region-specific cell behaviors in the Drosophila embryo.

Figure 5.

(A) Embryo schematic showing the germband ectoderm (blue) and mesoderm (yellow). (B) GPCR signaling through the Gα alpha subunit and RhoGEF2 activates myosin in the medial (apical) cellular domain. GPCR signaling through the Gβ/Gγ subunits and the RhoGEF Dp114/Cysts recruits myosin to adherens junctions in the ectoderm to promote cell intercalation. (C) Schematic of intercalating cells in the ectoderm. (D) Schematic of apically constricting cells in the mesoderm.