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Fig. 9 Effects of LMO7-morpholino injections on zebrafish heart development. Expression results of whole mount in situ hybridization of Cmcl2 in zebrafish embryos. Shown are zebrafish hearts of control injected and LMO7-morpholino injected embryos at prim-6 and long-pec stages. For morpholino-injected embryos mild, severe and extreme phenotypes are presented. A, B, C, F, G, H: Effects of the microinjection on zebrafish hearts at prim-6 are shown. D and E: Additionally, we present effects on heart localization. M, N: Also sections of zebrafish hearts at prim-6 are presented. I-L: Hearts of control and LMO7 injected embryos are shown. For the latter, the hearts of embryos with mild, severe and extreme phenotypes are depicted. Furthermore, longitudinal sections of hearts at the long pec stage are presented for wildtype (wt) embryos and morpholino-injected embryos showing a mild and severe phenotype (O-Q).