Fig. 2 in A mosaic of conserved and novel modes of gene expression and morphogenesis in mesoderm and muscle formation of a larval bivalve

Fig. 2 Expression of evenskipped (Dro-eve) during early development in Dreissena rostriformis. Anterior is up. Black arrowheads indicate the blastopore/stomodaeum, dotted line marks the region of the prototroch (pt), and sf marks the shell field. Scale bar equals 20 µm. a Dro-eve is first expressed in the ventral mesoderm and in ectodermal cells of the shell field. b Dro-eve expression in the ventral mesoderm ventro-posteriorly of the shell field. c Ectodermal expression of Dro-eve in the shell field. d Dro-eve expression in the ventro-posterior mesoderm and in the shell field of the trochophore larva. e Mesodermal expression of Dro-eve in ventral view. A, anterior; D, dorsal; P, posterior; V, ventral