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. 2012 Dec 19;2(2):227–237. doi: 10.1242/bio.20123699

Fig. 1. Wild type expression patterns of Pa-cad (A–C), Pa-Wnt1 (D–F), and Pa-en (G–I) in Periplaneta americana.

Fig. 1.

(A,B) Pa-cad is expressed in a broad posterior domain (brackets) in post-blastoderm (A) and early germ band elongation (B) embryos. (C) During late germ band elongation, Pa-cad is restricted to the mid-GZ (bracket) and is lost from the posterior tip (arrow). (D) Pa-Wnt1 post-blastoderm expression in head (arrow) and antennae (arrowhead) and in two posterior clusters of cells (*). (E) By early germ band elongation, Pa-Wnt1 is at the posterior (*) and in segmental stripes reaching T3. (F) During late germ band elongation, Pa-Wnt1 is expressed in an arc-like stripe in the posterior GZ (*) – set apart from the posterior tip (arrow), in segmental stripes in the anterior GZ (open arrowheads), in anterior segments and ventral appendages (black arrowheads). (G) Pa-en segmental expression up to T2 during post-blastoderm. Additional stripes (black arrowheads) are added sequentially from the posterior during early (H) and late (I) germ band elongation and remain throughout development (open arrowheads). T2, T3: second, third thoracic segment; A1, A4: first, fourth abdominal segment.