Fig. 2.

Expression and localization of Ci-Slc26aα. (A) Ci-slc26aα is expressed in the sensory vesicle and the notochord at early tailbud stage. (B) Diagram of the notochord at mid-tailbud stage during lumen formation. (C) Diagram of the sensory vesicle. (D) Ci-Slc26aα localizes to the apical side of the sensory vesicle epithelium and plasma membrane of the otolith. Ci-Slc26aα-mCherry localizes to the apical/luminal domain of the notochord cells during lumen expansion (E), during cell migration and lumen connection (F and G), and after tube formation (H). n, notochord; sv, sensory vesicle.