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Table 2 Correlation coefficients between relative IZUMO1 abundances in both pre-frozen (P-F) and frozen thawed (F-T) spermatozoa and sperm quality parameters in pre-frozen (P-F) and frozen-thawed spermatozoa, evaluated 30 (F-T-30) and 240 (F-T-240) min post-thaw

From: GSTM3, but not IZUMO1, is a cryotolerance marker of boar sperm

   Relative levels of P-F IZUMO1 Relative levels of F-T IZUMO1
P-F % Progressive motile spermatozoa 0.37 0.19
% Total motile spermatozoa 0.12 0.38
% SYBR-14+/PI spermatozoa 0.24 − 0.23
% M540/YO-PRO-1 spermatozoa 0.21 0.21
% JC1agg spermatozoa −0.27 − 0.51
% E/YO-PRO-1 spermatozoa 0.22 − 0.55
F-T-30 % Progressive motile spermatozoa 0.26 −0.25
% Total motile spermatozoa 0.23 −0.27
% SYBR-14+/PI spermatozoa −0.05 −0.08
% M540/YO-PRO-1 spermatozoa −0.05 0.03
% JC1agg spermatozoa −0.11 −0.01
% E/YO-PRO-1 spermatozoa −0.25 − 0.03
F-T-240 % Progressive motile spermatozoa 0.25 −0.12
% Total motile spermatozoa 0.20 −0.11
% SYBR-14+/PI spermatozoa −0.05 0.08
% M540/YO-PRO-1 spermatozoa −0.15 0.11
% JC1agg spermatozoa −0.31 −0.41
% E / YO-PRO-1 spermatozoa 0.02 0.23