Xenbase Image ID: 45417

Fig. 8. Transverse sections through the heart-forming region of Xenopus embryos after double whole-mount in situ hybridisation for the two markers of cardiogenesis (in pale blue), Nkx2-5 (A–F) and MLC1av (G–K), in combination with POX2 (magenta). (A–C) Three representative sections marking progressively posterior slices through the same stage 24 embryo depicted in Fig. 7(B,C). (D–F) Three progressively posterior sections through the stage 26 embryo depicted in Fig. 7(D,E). Red arrows mark the ventral-most XPOX2-expressing mesodermal cells within the heart field. (G) Transverse section through the myocardial plate of a stage 30 embryo. (H–J) Three progressively posterior sections through the myocardium of a stage 32 embryo. (K) Transverse section through the looping heart tube of a stage 35 embryo. Sections (10 μm) are numbered (top right of each panel) commencing from the posterior limit of the cement gland (A–C and D–F) or the anterior limit of the myocardium (G–K). Ect, ectoderm; Mes, mesoderm; End, endoderm; Mc, myocardium; Ec, endocardium. Image published in: Smith SJ et al. (2002) Copyright © 2002. Image reproduced with permission of the Publisher, Elsevier B. V. Gene Synonyms Species Stage(s) Tissue nkx2-5.L AR2, csx, Nkx-2.5, nkx-2.5, nkx2-5-a, nkx2-5-b, nkx2.5, tinman, XNkx-2.5, XNkx2-5 X. laevis Throughout NF stage 24 to NF stage 26 heart cardiac progenitor cell myl4.L MLC1av X. laevis Throughout NF stage 29 and 30 to NF stage 35 and 36 heart myocardium mpo.L mpo-A, myeloperoxidase, pmr-1, pmr1, pox2, xpox2 X. laevis Sometime during NF stage 24 to NF stage 35 and 36 myeloid cell Image source: Published Larger Image Printer Friendly View

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