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. 2009 Apr 28;4(4):e5374. doi: 10.1371/journal.pone.0005374

Figure 7. Developmental expression of Wnt signaling components in lamprey forebrain.

Figure 7

A,B (toto) and C (saggital section) show Wnt7 expression pattern (clone 70). In C the arrow points to the prechordal plate (pcp) which does not express Wnt7. D,E, expression of Wnt5 in toto (clone73). F,G (toto) and H (section) show Tcf7-like (clone 24) expression as a very discrete and sharp domain in the diencephalon. I,J (toto) show expression of Frizzled 1/2 (I shows clone 101 and J shows clone 94). K (saggital section) shows another Frizzled 1/2/7 member (clone 100). Dotted lines delineate the brain, telencephalon and notochord, and the arrow points to the Fzd-expressing prechordal plate (pcp). L,M,N show in toto views of Frizzled2/7 (clone 95) through stage 27. O,P (toto) and Q (section) show SFRP1/5 expression. O and Q show clone 103 whereas P shows clone 102. R,S (toto) and T (section) show SFRP2 expression. R and T show clone 97 whereas S shows clone 96. On whole-mount pictures, dotted lines delineate the telencephalon. Arrows in Q and T indicate basal hypothalamic expression. White asterisks indicate background trapping in the mouth or branchial arches. np, nasal placode; hp, hypophyseal placode.