Fig.Ā 3From: Comparative study of Hippo pathway genes in cellular conveyor belts of a ctenophore and a cnidarianExpression of a, b PpiCycB, c, d PpiCycD1, e, f PpiCycD2, g, h PpiHpo, i, j PpiSav, k, l PpiSd in the tentacle root of P. pileus. a, c, e, g, i, k Whole-mount views of tentacle roots (internal side) and b, d, f, h, j, l transverse cryosections towards the middle of the tentacle root (internal side on the bottom). Refer to Fig.Ā 1aāb for interpretations of these pictures. The brown colour in b, d, f, h, j, l corresponds to a pigment that appears and accumulates in the cytoplasm of colloblasts as they differentiate. In h, boxes highlight the colloblast differentiation area where PpiHpo is expressed contrary to the other genes, and the arrow shows area of strong PpiHpo expression at the tentacle/tentillae surface (whereas differentiated colloblasts that are still at the surface of the tentacle root do not express the geneāsee more details in Additional file 7). Scale bars 100Ā ĀµmBack to article page