| Title |
Identification of constraints influencing the bacterial genomes evolution in the PVC super-phylum
|
|---|---|
| Published in |
BMC Ecology and Evolution, March 2017
|
| DOI | 10.1186/s12862-017-0921-3 |
| Pubmed ID | |
| Authors |
Sandrine Pinos, Pierre Pontarotti, Didier Raoult, Vicky Merhej |
| Abstract |
Horizontal transfer plays an important role in the evolution of bacterial genomes, yet it obeys several constraints, including the ecological opportunity to meet other organisms, the presence of transfer systems, and the fitness of the transferred genes. Bacteria from the Planctomyctetes, Verrumicrobia, Chlamydiae (PVC) super-phylum have a compartmentalized cell plan delimited by an intracytoplasmic membrane that might constitute an additional constraint with particular impact on bacterial evolution. In this investigation, we studied the evolution of 33 genomes from PVC species and focused on the rate and the nature of horizontally transferred sequences in relation to their habitat and their cell plan. Using a comparative phylogenomic approach, we showed that habitat influences the evolution of the bacterial genome's content and the flux of horizontal transfer of DNA (HT). Thus bacteria from soil, from insects and ubiquitous bacteria presented the highest average of horizontal transfer compared to bacteria living in water, extracellular bacteria in vertebrates, bacteria from amoeba and intracellular bacteria in vertebrates (with a mean of 379 versus 110 events per species, respectively and 7.6% of each genomes due to HT against 4.8%). The partners of these transfers were mainly bacterial organisms (94.9%); they allowed us to differentiate environmental bacteria, which exchanged more with Proteobacteria, and bacteria from vertebrates, which exchanged more with Firmicutes. The functional analysis of the horizontal transfers revealed a convergent evolution, with an over-representation of genes encoding for membrane biogenesis and lipid metabolism, among compartmentalized bacteria in the different habitats. The presence of an intracytoplasmic membrane in PVC species seems to affect the genome's evolution through the selection of transferred DNA, according to their encoded functions. |
X Demographics
The data shown below were collected from the profiles of 12 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 4 | 33% |
| Netherlands | 2 | 17% |
| Spain | 1 | 8% |
| Hong Kong | 1 | 8% |
| China | 1 | 8% |
| Austria | 1 | 8% |
| Switzerland | 1 | 8% |
| Unknown | 1 | 8% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 11 | 92% |
| Members of the public | 1 | 8% |
Mendeley readers
The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 22 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 6 | 27% |
| Student > Master | 5 | 23% |
| Student > Postgraduate | 4 | 18% |
| Student > Doctoral Student | 1 | 5% |
| Professor > Associate Professor | 1 | 5% |
| Other | 1 | 5% |
| Unknown | 4 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 9 | 41% |
| Biochemistry, Genetics and Molecular Biology | 4 | 18% |
| Immunology and Microbiology | 2 | 9% |
| Medicine and Dentistry | 2 | 9% |
| Engineering | 1 | 5% |
| Other | 0 | 0% |
| Unknown | 4 | 18% |
Attention Score in Context
This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 March 2017.
All research outputs
#6,239,802
of 25,382,440 outputs
Outputs from BMC Ecology and Evolution
#1,344
of 3,714 outputs
Outputs of similar age
#93,036
of 321,120 outputs
Outputs of similar age from BMC Ecology and Evolution
#42
of 87 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. Compared to these this one has done well and is in the 75th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,714 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.5. This one has gotten more attention than average, scoring higher than 63% of its peers.
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We're also able to compare this research output to 87 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 51% of its contemporaries.