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Table 3 Correlations between cross-sectional areas of the sperm ultrastructures in the base of midpiece and 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

0.3379

−0.2861

0.7733**

0.5679

0.6755**

0.5389

Axoneme

0.3994

0.0832

0.1348

0.0291

0.0676

−0.0368

FSa

−0.0256

− 0.0020

0.1376

0.4675

0.3561

0.4017

MS

0.0186

−0.5027

0.8374**

0.9286***

0.9322***

0.9136***

odf1

0.3635

−0.2991

0.8**

0.5873

0.6981*

0.5562

odf2

0.3493

−0.2174

0.7002*

0.4812

0.5910

0.4478

odf3

0.3299

−0.2632

0.7396*

0.5188

0.6306

0.4943

odf4

0.2942

−0.2750

0.7278*

0.5043

0.6169

0.4873

odf5

0.3467

−0.3025

0.7876**

0.5694

0.6818*

0.5431

odf6

0.3567

−0.2875

0.7745**

0.5514

0.6651*

0.5227

odf7

0.3020

−0.2633

0.7255*

0.5076

0.6182

0.4874

odf8

0.3149

−0.2702

0.7389*

0.5183

0.6301

0.4974

odf9

0.3185

−0.1793

0.688*

0.5101

0.6057

0.4696

t-odf area

0.3291

−0.2824

0.7627**

0.5492

0.6594*

0.5234

  1. *P<0.05, **P<0.01, ***P<0.001. Analyses with autocorrelation between variables were not included in the table. a: the areas of FS indicate the areas of FS in the boundary of midpiece and principal piece. .t-odf area = (odf1 + odf2 + odf3 + odf4 + odf5 + odf6 + odf7 + odf8 + odf9) area