@article{PAR00015069,
  title = {{C}ompartmentalization in {PVC} super-phylum : evolution and impact},
  author = {{P}inos, {S}. and {P}ontarotti, {P}. and {R}aoult, {D}idier and {B}audoin, {J}. {P}. and {P}agnier, {I}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground: {T}he {PVC} super-phylum gathers bacteria from seven phyla ({P}lanctomycetes, {V}errucomicrobiae, {C}hlamydiae, {L}entisphaera, {P}oribacteria, {OP}3, {WWE}2) presenting different lifestyles, cell plans and environments. {P}lanctomyces and several {V}errucomicrobiae exhibit a complex cell plan, with an intracytoplasmic membrane inducing the compartmentalization of the cytoplasm into two regions (pirellulosome and paryphoplasm). {T}he evolution and function of this cell plan is still subject to debate. {I}n this work, we hypothesized that it could play a role in protection of the bacterial {DNA}, especially against {H}orizontal {G}enes {T}ransfers ({HGT}). {T}herefore, 64 bacterial genomes belonging to seven different phyla (whose four {PVC} phyla) were studied. {W}e reconstructed the evolution of the cell plan as precisely as possible, thanks to information obtained by bibliographic study and electronic microscopy. {W}e used a strategy based on comparative phylogenomic in order to determine the part occupied by the horizontal transfers for each studied genomes. {R}esults: {O}ur results show that the bacteria {S}imkania negevensis ({C}hlamydiae) and {C}oraliomargarita akajimensis ({V}errucomicrobiae), whose cell plan were unknown before, are compartmentalized, as we can see on the micrographies. {T}his is one of the first indication of the presence of an intracytoplasmic membrane in a {C}hlamydiae. {T}he proportion of {HGT} does not seems to be related to the cell plan of bacteria, suggesting that compartmentalization does not induce a protection of bacterial {DNA} against {HGT}. {C}onversely, lifestyle of bacteria seems to impact the ability of bacteria to exchange genes. {C}onclusions: {O}ur study allows a best reconstruction of the evolution of intracytoplasmic membrane, but this structure seems to have no impact on {HGT} occurrences.},
  keywords = {{E}volution ; {B}acteria ; {PVC}-super phylum ; {M}icroscopy ; {C}ompartmentalization},
  booktitle = {},
  journal = {{B}iology {D}irect},
  volume = {11},
  numero = {},
  pages = {art. 38 [12 p.]},
  ISSN = {1745-6150},
  year = {2016},
  DOI = {10.1186/s13062-016-0144-3},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00015069},
}