Fig. 4From: Comparative analysis of mammalian sperm ultrastructure reveals relationships between sperm morphology, mitochondrial functions and motilityRelationships between mitochondrial volume and ATP content, VSL. a Regression analysis shows a positive relationship between mitochondrial volume and ATP content (n = 3 replicates/sample, N = 3 male samples/species) (R2 = 0.982, P < 0.001). b Regression analysis shows a positive relationship between mitochondrial volume and VSL (R2 = 0.528, P = 0.017)Back to article page