Fig. 1From: GSTM3, but not IZUMO1, is a cryotolerance marker of boar spermImmunolocalisation of IZUMO1 in (a) pre-frozen and (b) frozen-thawed boar spermatozoa. Nucleus is shown in blue (DAPI), whereas IZUMO1 is shown in green (FITC). Scale bars: A: 20 μm; B: 14 μmBack to article page