Figure 2.
Planarian homologs of human centrosome components are required for centriole assembly in multiciliated cells. Left: conservation of centrosome components in animals (red). Ancestral eukaryotic genes are in orange. Green box: centrosome signature genes lost in the planarian Schmidtea mediterranea and the parasite flatworm Schistosoma mansoni but present in Drosophila. Middle: regeneration and locomotion phenotypes in planarians (+: no defect; Abn: abnormal; Inch: inchworming; Dir: abnormal direction of locomotion). Right: +: genes implicated in centriole duplication or ciliogenesis in other systems (red +: this study; S.O.M.).