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Table 2 Correlations between slopes of the sperm ultrastructures and the sperm morphology

From: Comparative analysis of mammalian sperm ultrastructure reveals relationships between sperm morphology, mitochondrial functions and motility

Sperm morphology Ultrastructures Head length Head width Midpiece length Principal length Flagellar length Flagellum:head ratio
ODFs 0.37 0.16 0.18 −0.01 0.07 − 0.06
Axonome −0.15 0.24 −0.70* − 0.78** −0.78** − 0.72*
Fibrous sheath 0.14 0.06 −0.44 −0.63 − 0.58 −0.59
Mitochondrial sheath −0.18 −0.02 − 0.01 0.28 0.18 0.24
odf1 0.44 0.11 0.20 −0.04 0.06 −0.08
odf2 0.45 0.26 0.15 −0.04 0.04 −0.12
odf3 0.31 0.04 0.20 −0.08 0.03 −0.08
odf4 0.29 0.13 0.19 −0.02 0.06 −0.05
odf5 0.45 0.10 0.25 0.02 0.11 −0.03
odf6 0.45 0.12 0.22 −0.02 0.08 −0.07
odf7 0.36 0.19 0.15 −0.09 0.01 −0.13
odf8 0.45 0.02 0.21 −0.16 −0.02 − 0.17
odf9 0.39 0.36 0.03 −0.10 −0.05 − 0.19
t-odf area 0.56 0.22 0.27 0.02 0.12 −0.07
  1. *P<0.05, **P<0.01. t-odf area = (odf1 + odf2 + odf3 + odf4 + odf5 + odf6 + odf7 + odf8 + odf9) area