Fig. 1
From: CpG DNA methylation changes during epididymal sperm maturation in bulls
A Dissection of epididymis and detection of acrosome in the three epididymis tracts. On the left, epididymis with respective ductus deferens dissected from the testicle. On the right the three epididymis tracts (caput, corpus and cauda with ductus deferens) surgically separated, well distinct from an anatomical point of view and not adjacent. Curly brackets indicate the effective tracts from which sperm cells were recovered. B–D Sperm acrosomes stained with FITC-PNA. Different patterns of acrosome staining are visible in the three epididymis tracts: B slightly disordered membrane acrosome; C severely disordered membrane acrosome; D intact acrosome with normal membrane