Fig. 4
From: Rab32 and Rab38 genes in chordate pigmentation: an evolutionary perspective
Rab32/38 expression pattern during amphioxus embryogenesis. Rab32/38 has been observed in notochord presumptive territories at the gastrula stage (a, black arrow), while later in development at the neurula stage it is expressed in notochord, mainly in the rostral part (b-c, black arrow). d is a vibratome section (15 μm) of the neurula specimen showed in b-c, at the level of the vertical dashed line. At the pre-mouth larval stage, Rab32/38 expression in the notochord turns off while a positive signal appears in the pharynx region (e, arrowhead)