Xenbase Image ID: 81018

Fig. 1. Expression pattern of XOsr genes. Panels A, E are vegetal and panels B–D, F–P are lateral views. Insets in panels A, C, D, E, G, H, L, M and N are transverse vibratome sections through the dashed lines in the main panels. (A) Early gastrula stage (stg). XOsr1 is expressed in the involuting mesoderm and endoderm (arrowhead and arrow in inset, respectively). (B, C) During neurulation, XOsr1 mRNA is detected in the pronephric territory. (D) At tailbud, XOsr1 is expressed in the ducts (arrowhead in inset) and in the rectal diverticulum (arrow). (E–G) Expression of XOsr2 is similar, but stronger. In the prospective kidney territory, XOsr2 is detected earlier than XOsr1 (stage 11.5–12, inset in panel F; arrowhead marks the prospective kidney domain), and earlier than other pronephric markers (see inset in panel I for the expression of Xlim1 at this stage; arrowhead marks the prospective kidney domain). (H) At tailbud, XOsr2 is expressed in the tubules (arrow) and in a broad domain adjacent to the ducts (arrowhead in inset). (I, J, M, N) During neurula, expressions of XOsr2 and Xlim1 (I, M) largely overlap in the pronephric region (double in situ hybridization, J, N). (K, O) During neurula, XPax8 is also detected in the pronephric territory. (L, P) At tailbud, Xlim1 and XPax8 are expressed in the tubules and ducts. Inset in panel L show Xlim1 expression in the duct (arrowhead). Image published in: Tena JJ et al. (2007) Copyright © 2007. Image reproduced with permission of the Publisher, Elsevier B. V. Larger Image Printer Friendly View

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