title: Genetic individuality and interspecies altruism: modelling symbiogenesis using different types of symbiotic bacteria
metadata.name: dc.contributor.author
metadata.value: Provorov, Nikolay
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-04-16T18:29:35Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-04-16T18:29:35Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Provorov, N. 2021. Genetic individuality and interspecies altruism: modelling symbiogenesis using different types of symbiotic bacteria. Bio. Comm. 66(1): 66–72.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu03.2021.108
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/27936
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: In this minireview, we address the trade-off between biological altruism (group
  adaptation resulting from the ability of an organism to improve the fitness of an
  associate at the expense of its own fitness) and symbiogenesis — the evolutionary
  pathway based on genetic integration of non-related species. We address
  symbiogenesis as a multi-stage process, which involves formation of superspecific
  hereditary systems — functionally integral symbiogenomes (under the facultative
  partners’ interactions) reorganized into the structurally integral hologenomes
  (in the obligatory symbioses). The best studied case of symbiogenesis
  is represented by the evolution of the eukaryotic cell based on transformation
  of symbiotic bacteria into cellular organelles. This evolution is associated with
  the deep reduction of microsymbionts’ genomes and with allocation of their
  genes into the hosts. As a result, microsymbionts lost their Genetic INdividuality
  (GIN), characterized by an ability to implement DNA- and RNA-based template
  syntheses required for genome maintenance and expression. Under facultative
  symbiotic dependence on hosts, the partial loss of GIN is due to a “symbiont
  → host” altruism which in the N2-fixing microbe–plant symbioses results in
  formation of non-reproducible bacterial forms (e.g., intracellular bacteroids in
  rhizobia or multiple heterocysts in Nostoc). If micro-symbionts lose their ability
  of autonomous existence (e.g., in the vertically transmitted intracellular symbionts),
  they are switched to the “forced altruism” in which the GIN reduction is
  required for the stable persistence of symbionts in hosts. Therefore, organellogenesis
  involves the sequential increase of the symbionts’ dependency on
  hosts: conditional → facultative → obligatory → absolute. It is associated with
  the reorganization of microbes into semi-autonomous cellular components,
  which may be completely devoid of their own genomes.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Supported by the Russian Science
  Foundation, Grant 19-16-00081.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Biological Сommunications;Volume 66; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: facultative and obligatory symbioses
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: symbiogenesis and organellogenesis
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: biological altruism
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: microbe-plant interactions
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: nodule bacteria (rhizobia)
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: superspecific genetic systems (hologenomes, symbiogenomes)
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: genetic individuality
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: horizontal and endosymbiotic gene transfer
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Genetic individuality and interspecies altruism: modelling symbiogenesis using different types of symbiotic bacteria
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 66-72.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/27936/1/66-72.pdf
resources.format: Adobe PDF
resources.size: 2,57 MB