Fig. S9
- ID
- ZDB-FIG-180410-36
- Publication
- Sawamiphak et al., 2017 - Transient cardiomyocyte fusion regulates cardiac development in zebrafish
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Jam3b deficiency impedes FATC activation in skeletal muscles. A-P, Embryos from crossing jam3b+/-;Tg(ubb:FATC) fish to jam3+/-;Tg(hsp:cre) fish were heatshocked at 24 hpf. At 48-50 hpf, skeletal muscles in control animals (A-H, jam3b+/?=jam3b+/+ or jam3b+/-) were multinucleated, as visualized by DAPI staining (blue), and showing LIFEACT-GFP (green) expression. By contrast, in jam3b mutants (I-P, jam3b-/-), most muscles were mononucleated and their nuclei centrally positioned within each myotome. Correspondingly, the numbers of LIFEACT-GFP+ skeletal myocytes were reduced. Q, A few LIFEACT-GFP+ (green) myocytes detected in jam3b-/- embryos were multinucleated, as shown by DAPI staining (blue). Arrowheads point to nuclei of LIFEACT-GFP+ cells. Images are maximum intensity projections from 17.5-25 (A-P) and 10 (Q) μm thick confocal stacks of individual animals and shown in lateral views, dorsal to the left, anterior up. 10-12 embryos of each genotypes were examined. |