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Fig. S5
fosl2-/- adults are indistinguishable from siblings with regard to animal size, heart size, heart morphology, and cardiac regenerative capacity.
(A,B) Photographs of 6-month old sibling control (CTRL; A; n=6) and fosl2 null (B; n=6) zebrafish showing their equivalent sizes. (C,D) Photographs of hearts dissected from 6 month old control (C; n=6) and fosl2 null (D, n=6) zebrafish showing their equivalent sizes and morphologies. (E,F) AFOG-stained cardiac sections from 6 month-old control (E; n=4 hearts) and fosl2 null (F; n=4 hearts) hearts on day 45 post apical resection. Mutant hearts regenerated (*) resected myocardium normally. A, atrium. V, ventricle. BA, bulbus arteriosus. Scale bars: 1mm in (A,B), 200µm in (C-F).