NADH tetrazolium reductase staining in TA muscle. Representative areas of the superficial (panel A, red box) and deep (blue box) portion of the muscle were quantified for the staining intensity (darker stain corresponds to a higher oxidative capacity). Panel B; mean and SD (n=4 per strain) of the area occupied by the dark stained, oxidative, fibers.
Lionikas et al. BMC Genomics 2012 13:592 doi:10.1186/1471-2164-13-592