FIGURE SUMMARY
Title

All four zebrafish Wnt7 genes are expressed during early brain development

Authors
Beretta, C.A., Brinkmann, I., and Carl, M.
Source
Full text @ Gene Expr. Patterns
Fig. 2

Expression of all four Wnt7 genes during early embryonic development. (A–D4) Lateral views with (A–A4) anterior towards the top and (B–D4) anterior to the left. (A2) The bracket highlights Wn7ab expression in cells of the presumptive rhombencephalon. Developmental stages and genes labelled are indicated. di, diencephalon; me, mesencephalon; rh, rhombencephalon; Tel, telencephalon.
Fig. 3

Wnt7 genes are mainly expressed in the CNS at late somitogenesis stages. (A–B4) Lateral views, anterior to the left; developmental stages and genes labelled are indicated. (A3–B3) The arrow indicates expression in the Kupffer’s vesicle region, the arrowhead marks expression in the proctodeum. (B–B4) Asterisks mark the otic vesicle for orientation. di, diencephalon; me, mesencephalon; rh, rhombencephalon; Tel, telencephalon.
Fig. 4

Three Wnt7 genes are expressed in the CNS up to 48 hpf. (A–C3) Lateral views, anterior to the left; developmental stages and genes labelled are indicated. (A – Inset) Dorsal view focussed on the area of the otic vesicles. dTel, dorsal telencephalon; Le, lens epithelium; me, mesencephalon; rh, rhombencephalon; Tel, telencephalon.
Fig. 5

Detailed analysis of Wnt7b expression. (A–B2) Double in situ hybridisation using sonic hedgehog (shh) in red and one Wnt7b paralogue as indicated in purple; lateral views, anterior to the left. (A–A2) Focussing on the brain region we do not observe overlapping expression of either Wnt7b paralogue with shh in the prechordal plate. (B–B2) Wnt7ba is expressed just posterior adjacent to shh expressing cells in the area of the Kupffer’s vesicle (arrow). In addition Wnt7ba is expressed in the region of the proctodeum (arrowhead). (B′) Asterisks indicate the absence of Wnt7bb expression in both the region of the proctodeum and the Kupffer’s vesicle. (C–C2) Frontal views focussed on the telencephalic expression of the Wnt7b paralogues show that while Wnt7ba expression is slightly more pronounced in the dorsal part it does not extend as far ventrally when compared to Wnt7bb expression (brackets indicate comparable areas of the telencephalon). All developmental stages are indicated. di, diencephalon; me, mesencephalon; Tel, telencephalon.

EXPRESSION / LABELING:
Genes:
Fish:
Anatomical Terms:
Stage Range: 14-19 somites to 20-25 somites
Acknowledgments
This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image.

Reprinted from Gene expression patterns : GEP, 11(3-4), Beretta, C.A., Brinkmann, I., and Carl, M., All four zebrafish Wnt7 genes are expressed during early brain development, 277-84, Copyright (2011) with permission from Elsevier. Full text @ Gene Expr. Patterns
Your Input Welcome
We welcome your input and comments. Please use this form to recommend updates to the information in ZFIN. We appreciate as much detail as possible and references as appropriate. We will review your comments promptly.
Please check the highlighted fields and try again.
Thank you for submitting comments. Your input has been emailed to ZFIN curators who may contact you if additional information is required.
Oops. Something went wrong. Please try again later.