Expressed in the mid-hindbrain junction, presumptive pronephros, rectal diverticulum, pharyngeal aches, otic vesicle and spinal chord. Anterior is to the left in all panels. Dorsal is up in panels C,D,E,G and H. A and B are dorsal views, and F is a ventral view. White arrow indicates one of two neural patches of XPax-2 expression. Staining corresponds to the future mid-hindbrain junction.
Black arrow indicates eye field expression.
Black double arrow indicates blastopore expression. Yellow arrow indicates future otic vesicle expression. Red double arrow indicates pronephric anlage expression. Red arrow indicates pharyngeal arch staining. White arrowhead indicates pronephric duct expression.