Rhizobium Quorum-Sensing Systems Across 142 Genomes

142 complete Rhizobium genomes were analyzed for quorum-sensing systems using comparative genomics and phylogenetic reconstruction. The study by Ivana Blancas-Nava, last updated in April 2026, examines the distribution, diversity, and evolutionary dynamics of LuxI/LuxR homologs across chromosomes and plasmids. Findings indicate heterogeneous distribution, multiple independent acquisition events, and a central role for plasmids in system transfer and innovation.

Use Cases

• Comparative genomics analysis based on the identification of LuxI/LuxR homologs across 142 genomes
• Phylogenetic reconstruction of quorum-sensing system evolution based on sequence and coevolutionary analysis
• Studying the role of plasmids in gene transfer based on evidence of plasmid-encoded system diversity and mobility
• Investigating genomic context variation based on the association of systems with multiple distinct chromosomal contexts

Strengths

• Analysis is based on 142 complete Rhizobium genomes, providing a defined genomic scope
• Study employs multiple methodologies: comparative genomics, phylogenetic reconstruction, and genomic context analysis
• Findings are specific, detailing at least seven independent acquisition events for chromosomal systems

Limitations

• The primary data file is a 37.6 KB PDF, which likely contains a research paper rather than raw genomic data tables
• Row count and column-level documentation for any underlying data are unknown
• Data freshness should be verified, though the last update is listed as 2026-04-17

Provenance

Source

Ivana Blancas-Nava via figshare

Collection Method

Comparative genomics, phylogenetic reconstruction, and genomic context analysis of 142 complete Rhizobium genomes

Freshness

Last updated 2026-04-17 05:21:53