Rhizobium Quorum-Sensing Systems: Diversity and Evolution Across 142 Genomes

142 complete Rhizobium genomes were analyzed using comparative genomics and phylogenetic reconstruction to study quorum-sensing systems. The research, authored by Ivana Blancas-Nava, identifies LuxI/LuxR homologs and examines their genomic distribution across chromosomes and plasmids. The findings, last updated in April 2026, detail heterogeneous distribution, multiple acquisition events, and the role of plasmids in system transfer.

Use Cases

• Phylogenetic analysis of LuxI/LuxR homologs based on sequence similarity and domain architecture mentioned in the description
• Comparative genomics to study the distribution and acquisition of quorum-sensing systems across bacterial replicons
• Cophylogenetic assessment of coevolution between LuxI and LuxR regulator pairs
• Analysis of genomic context to infer independent acquisition events and horizontal gene transfer

Strengths

• Analysis is based on 142 complete Rhizobium genomes, providing a defined genomic scale.
• The study employs multiple methodologies: comparative genomics, phylogenetic reconstruction, and genomic context analysis.
• Findings detail at least seven independent acquisition events for chromosomal systems.

Limitations

• The primary data file is a 54.5 KB PDF, which likely contains summarized results rather than raw genomic data.
• Row count and column-level documentation for any underlying data are unknown.
• The dataset's small file size indicates limited scope, likely containing a research summary or supplementary figures.

Provenance

Source

figshare, author Ivana Blancas-Nava

Collection Method

Comparative genomics, phylogenetic reconstruction, and genomic context analysis of publicly available genome sequences.

Freshness

Last updated 2026-04-17 05:21:58