The Drosophila gastrulation gene concertina encodes a G alpha-like protein.

Abstract excerpt

Gastrulation is a complex process requiring the coordination of cell shape changes and cell movements. In Drosophila, gastrulation begins immediately upon cellularization of the blastoderm stage embryo with the formation of the ventral furrow and posterior midgut. Cells that form both of these invaginations change their shape via apical constriction. Embryos from mothers homozygous for mutations in the concertina...

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