Topic summary

Hologenome

Hologenome

Extracted from the Wikipedia article Hologenome theory of evolution.

Definition

  • I. Holobionts and hologenomes are units of biological organization
  • II. Holobionts and hologenomes are not organ systems, superorganisms, or metagenomes
  • III. The hologenome is a comprehensive gene system
  • IV. The hologenome concept reboots elements of Lamarckian evolution
  • V. Hologenomic variation integrates all mechanisms of mutation
  • VI. Hologenomic evolution is most easily understood by equating a gene in the nuclear genome to a microbe in the microbiome
  • VII. The hologenome concept fits squarely into genetics and accommodates multilevel selection theory
  • VIII. The hologenome is shaped by selection and neutrality
  • IX. Hologenomic speciation blends genetics and symbiosis
  • X. Holobionts and their hologenomes do not change the rules of evolutionary biology