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Fine-scale evolution: genomic, phenotypic and ecological differentiation in two coexisting Salinibacter ruber strains

Overview of attention for article published in The ISME Journal, February 2010
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  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (71st percentile)
  • Good Attention Score compared to outputs of the same age and source (76th percentile)

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Fine-scale evolution: genomic, phenotypic and ecological differentiation in two coexisting Salinibacter ruber strains
Published in
The ISME Journal, February 2010
DOI 10.1038/ismej.2010.6
Pubmed ID

Arantxa Peña, Hanno Teeling, Jaime Huerta-Cepas, Fernando Santos, Pablo Yarza, Jocelyn Brito-Echeverría, Marianna Lucio, Philippe Schmitt-Kopplin, Inmaculada Meseguer, Chantal Schenowitz, Carole Dossat, Valerie Barbe, Joaquín Dopazo, Ramon Rosselló-Mora, Margarete Schüler, Frank Oliver Glöckner, Rudolf Amann, Toni Gabaldón, Josefa Antón


Genomic and metagenomic data indicate a high degree of genomic variation within microbial populations, although the ecological and evolutive meaning of this microdiversity remains unknown. Microevolution analyses, including genomic and experimental approaches, are so far very scarce for non-pathogenic bacteria. In this study, we compare the genomes, metabolomes and selected ecological traits of the strains M8 and M31 of the hyperhalophilic bacterium Salinibacter ruber that contain ribosomal RNA (rRNA) gene and intergenic regions that are identical in sequence and were simultaneously isolated from a Mediterranean solar saltern. Comparative analyses indicate that S. ruber genomes present a mosaic structure with conserved and hypervariable regions (HVRs). The HVRs or genomic islands, are enriched in transposases, genes related to surface properties, strain-specific genes and highly divergent orthologous. However, the many indels outside the HVRs indicate that genome plasticity extends beyond them. Overall, 10% of the genes encoded in the M8 genome are absent from M31 and could stem from recent acquisitions. S. ruber genomes also harbor 34 genes located outside HVRs that are transcribed during standard growth and probably derive from lateral gene transfers with Archaea preceding the M8/M31 divergence. Metabolomic analyses, phage susceptibility and competition experiments indicate that these genomic differences cannot be considered neutral from an ecological perspective. The results point to the avoidance of competition by micro-niche adaptation and response to viral predation as putative major forces that drive microevolution within these Salinibacter strains. In addition, this work highlights the extent of bacterial functional diversity and environmental adaptation, beyond the resolution of the 16S rRNA and internal transcribed spacers regions.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 151 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 6 4%
Germany 2 1%
France 2 1%
Brazil 2 1%
Denmark 2 1%
Spain 2 1%
Mexico 2 1%
Sweden 1 <1%
South Africa 1 <1%
Other 6 4%
Unknown 125 83%

Demographic breakdown

Readers by professional status Count As %
Researcher 38 25%
Student > Ph. D. Student 36 24%
Student > Master 15 10%
Professor > Associate Professor 13 9%
Student > Bachelor 8 5%
Other 23 15%
Unknown 18 12%
Readers by discipline Count As %
Agricultural and Biological Sciences 89 59%
Biochemistry, Genetics and Molecular Biology 16 11%
Environmental Science 12 8%
Immunology and Microbiology 9 6%
Engineering 2 1%
Other 1 <1%
Unknown 22 15%
Attention Score in Context

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 18 October 2023.
All research outputs
of 24,727,020 outputs
Outputs from The ISME Journal
of 3,203 outputs
Outputs of similar age
of 98,424 outputs
Outputs of similar age from The ISME Journal
of 26 outputs
Altmetric has tracked 24,727,020 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 3,203 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 20.6. This one is in the 32nd percentile – i.e., 32% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 98,424 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 71% of its contemporaries.
We're also able to compare this research output to 26 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 76% of its contemporaries.