| 
            
    
    
    
            
            
            
            
                
                    
                    
                        
                        
                        
                            
                            
 
    
        
            
                
            
            
        
    
    
        
        
        
            Cardiomyocyte number is unchanged between siblings and uq 23ks mutants. A: Confocal imaging of sibling and uq 23ks mutants on the Tg(myl7:nls‐dsRed) background at 48 hpf. B: Dot plots quantifying the total number of cardiomyocytes observed in embryonic hearts show no significant (ns) difference between sibling and uq 23ks mutants at 48 hpf, suggesting a difference in cell proliferation or differentiation is not contributing to the uq 23ks phenotype. C: Quantification of cell number per area, however, is significantly higher in uq 23ks mutants compared with siblings, consistent with smaller cardiomyocyte size in uq 23ks mutants. mean ± SEM. n.s. = not significant; **P < 0.01.
        
    
 
                        
                    
                
            
            
            
            
            
            
                
             
         |