Figure 6. Functional enrichment analysis for housekeeping genes.

Housekeeping genes were enriched in GO categories of (A) biological process, (B) cellular component, (C) molecular function, and (D) disease. Colour bars show gene frequency from 0. The basal cellular function between pigs and humans showed high consistency. (A): (1) Biological process categories included the basal metabolism, (2) regulation of metabolic processes, (3) cellular transport, (4) cell cycle, and (5) gene expression and regulation. (B): (1) Cellular component categories included organelle, (2) nuclear, and (3) micromolecular complex. (C): (1) Molecular function categories included catalytic activity, (2) transcription factor activity, (3) binding activity, and (4) transporter activity. (D): (1) Disease categories included tumour, (2) cancer, (3) chromosomal damage and repair, and (4) other disease.