Fig. 5
From: The compact genome of the sponge Oopsacas minuta (Hexactinellida) is lacking key metazoan core genes
Survey of key genes involved in the metazoan developmental toolkit. a Presence/absence of genes involved in the canonical Wnt pathway: the absence of Wnt and dishevelled genes is an unusual feature suggesting the use of alternative pathways. b Survey of genes involved in three critical signaling pathways in O. minuta compared to the demosponge Amphimedon queenslandica: core members of Notch and TGF-β are present. c Inventory of basic Helix loop Helix (bHLH) transcription factors present in O. minuta compared to two other sponges. Numerous genes are absent in O. minuta. d Inventory of Homeobox transcription factors present in O. minuta compared to two other sponges. Several ancestral classes are absent in this species. Numbers in circles indicate the number of genes found, question mark indicates the absence of data in the literature