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Fig. 6

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ZDB-IMAGE-071120-5
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Figures for Peterkin et al., 2007
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Fig. 6 Cardiac induction requires GATA activity in zebrafish. Flat mounts: dorsal views. (A) nkx2.5 expression at 5 somites requires GATA5 and redundantly GATA4 and GATA6. The loss of GATA4 and/or GATA6 alone has little effect on the initiation of nkx2.5. (B) GATA4 expression at 5 somites requires GATA5 and redundantly GATA6. GATA4 is also required to maintain its own expression (B). Hrt/tbx20 expression is lost in the GATA5 and 6 double morphants (C) as is Tbx5 expression at 10 somites (D). (E) nkx2.7 expression remains unchanged in embryos injected with GATA5 and 6 morpholino. Note that GATA5 and 6 double morphants knock out GATA4 expression and therefore represent a triple knockdown. The black bracket indicates the cardiac expression.

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Reprinted from Developmental Biology, 311(2), Peterkin, T., Gibson, A., and Patient, R., Redundancy and evolution of GATA factor requirements in development of the myocardium, 623-635, Copyright (2007) with permission from Elsevier. Full text @ Dev. Biol.