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Figure 6. Xic1 is required for late stages of cardiomyocyte differentiation. Expression of Nkx2.5 (A) or Xic1 (B) by in situ hybridization at described stages. Nkx2.5 staining is largely localized to the ventral side of embryos in the cardiac crescent (A, white arrows). In contrast, Xic1 expression is predominantly dorsal (B, Dorsal view, black arrows) and only weakly detected at the ventral side (B, ventral view, black star-arrowhead). (C) Xic1Mo does not affect the cardiac field as measured by Nkx2.5 expression at stages-17, -19 and -21 of development. (D) RT–PCR from uninjected embryos or embryos injected with either CTRMo or Xic1Mo to detect expression of TIc and MHCα with ODC as loading control, stages as described. (E) Quantitative RT–PCR demonstrating the relative expression of xMLC1v in embryos described in (D), following normalization against xODC.
Published on behalf of the European Society of Cardiology. This image is reproduced with permission of the journal and the copyright holder. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license
