Subtopic Deep Dive
Burkholderia pseudomallei Genomic Plasticity
Research Guide
What is Burkholderia pseudomallei Genomic Plasticity?
Burkholderia pseudomallei genomic plasticity refers to the bacterium's extensive genome rearrangements, high levels of horizontal gene transfer, and adaptive evolution enabling its persistence as a soil saprophyte and melioidosis pathogen.
Holden et al. (2004) sequenced the B. pseudomallei K96243 genome, revealing 16 complete genomic islands, 6 prophages, and 23 IS elements contributing to plasticity (768 citations). Pearson et al. (2009) demonstrated phylogeographic reconstruction amid high lateral gene transfer across global isolates (188 citations). Yu et al. (2006) compared B. pseudomallei to avirulent B. thailandensis, identifying genomic patterns of pathogen evolution (162 citations).
Why It Matters
Genomic plasticity drives B. pseudomallei adaptability, explaining melioidosis emergence in endemic areas and persistence despite antibiotics (Holden et al., 2004; Wiersinga et al., 2006). It informs biothreat risk assessment as the bacterium's soil reservoir and genomic instability enable rapid evolution (Pearson et al., 2009). Comparative genomics reveals virulence factors like type VI secretion systems linked to plasticity, aiding vaccine and therapeutic design (Schwarz et al., 2010; Yu et al., 2006).
Key Research Challenges
Quantifying horizontal gene transfer
High lateral gene transfer rates complicate phylogeny reconstruction in B. pseudomallei (Pearson et al., 2009). Distinguishing core from accessory genes requires robust pangenome models amid frequent rearrangements (Holden et al., 2004). Accurate HGT detection demands advanced computational pipelines beyond standard alignments.
Linking plasticity to virulence
Genome islands and prophages correlate with pathogenicity, but causal roles remain unclear (Yu et al., 2006). Comparative studies with B. thailandensis highlight plasticity differences, yet functional validation lags (Holden et al., 2004). Experimental models struggle to replicate environmental adaptation.
Tracking global strain evolution
Phylogeographic patterns show regional diversity driven by plasticity, challenging outbreak tracing (Pearson et al., 2009). Integrating multi-omics data with genomic instability requires scalable phylogenomic tools (Sawana et al., 2014). Long-term surveillance datasets are limited for predictive modeling.
Essential Papers
Genomic plasticity of the causative agent of melioidosis, <i>Burkholderia pseudomallei</i>
Matthew T. G. Holden, Richard W. Titball, Sharon J. Peacock et al. · 2004 · Proceedings of the National Academy of Sciences · 768 citations
Burkholderia pseudomallei is a recognized biothreat agent and the causative agent of melioidosis. This Gram-negative bacterium exists as a soil saprophyte in melioidosis-endemic areas of the world ...
Melioidosis
W. Joost Wiersinga, Harjeet Singh Virk, Alfredo G. Torres et al. · 2018 · Nature Reviews Disease Primers · 620 citations
Melioidosis: insights into the pathogenicity of Burkholderia pseudomallei
W. Joost Wiersinga, Tom van der Poll, Nicholas J. White et al. · 2006 · Nature Reviews Microbiology · 582 citations
Molecular signatures and phylogenomic analysis of the genus Burkholderia: proposal for division of this genus into the emended genus Burkholderia containing pathogenic organisms and a new genus Paraburkholderia gen. nov. harboring environmental species
Amandeep Sawana, Mobolaji Adeolu, Radhey S. Gupta · 2014 · Frontiers in Genetics · 461 citations
The genus Burkholderia contains large number of diverse species which include many clinically important organisms, phytopathogens, as well as environmental species. However, currently, there is a p...
Burkholderia Type VI Secretion Systems Have Distinct Roles in Eukaryotic and Bacterial Cell Interactions
Sandra Schwarz, T. Eoin West, Frédéric Boyer et al. · 2010 · PLoS Pathogens · 366 citations
Bacteria that live in the environment have evolved pathways specialized to defend against eukaryotic organisms or other bacteria. In this manuscript, we systematically examined the role of the five...
Melioidosis: Evolving Concepts in Epidemiology, Pathogenesis, and Treatment
Bart J. Currie · 2015 · Seminars in Respiratory and Critical Care Medicine · 334 citations
Infection with Burkholderia pseudomallei can result in asymptomatic seroconversion, a single skin lesion that may or may not heal spontaneously, a pneumonia which can be subacute or chronic and mim...
MexXY multidrug efflux system of Pseudomonas aeruginosa
Yuji Morita, Junko Tomida, Yoshiaki Kawamura · 2012 · Frontiers in Microbiology · 191 citations
Anti-pseudomonas aminoglycosides, such as amikacin and tobramycin, are used in the treatment of Pseudomonas aeruginosa infections. However, their use is linked to the development of resistance. Dur...
Reading Guide
Foundational Papers
Start with Holden et al. (2004) for core genome features and plasticity mechanisms (768 citations), then Yu et al. (2006) for pathogen-specific patterns versus B. thailandensis (162 citations). Follow with Pearson et al. (2009) for HGT phylogeography.
Recent Advances
Sawana et al. (2014) proposes Burkholderia genus division via phylogenomics (461 citations). Wiersinga et al. (2018) updates melioidosis context with plasticity implications (620 citations).
Core Methods
Whole-genome sequencing, comparative genomics, pangenome analysis with core/accessory gene partitioning, phylogeny reconstruction accounting for HGT via recombination detection.
How PapersFlow Helps You Research Burkholderia pseudomallei Genomic Plasticity
Discover & Search
Research Agent uses citationGraph on Holden et al. (2004) to map 768 citing papers revealing plasticity trends, then findSimilarPapers uncovers Pearson et al. (2009) for HGT phylogeography. exaSearch queries 'Burkholderia pseudomallei genomic islands horizontal transfer' to surface 50+ related studies from 250M+ OpenAlex papers. searchPapers with filters for 'pangenome analysis melioidosis' discovers Sawana et al. (2014) genus phylogenomics.
Analyze & Verify
Analysis Agent applies readPaperContent to extract genomic island counts from Holden et al. (2004), then verifyResponse with CoVe cross-checks HGT claims against Yu et al. (2006). runPythonAnalysis in sandbox computes pangenome statistics from supplementary tables using pandas, with GRADE scoring evidence strength for virulence links (Schwarz et al., 2010). Statistical verification confirms rearrangement frequencies via NumPy bootstrapping.
Synthesize & Write
Synthesis Agent detects gaps in HGT functional studies across Holden (2004) and Pearson (2009), flagging contradictions in island pathogenicity. Writing Agent uses latexEditText to draft comparative genomics sections, latexSyncCitations integrates 10 key references, and latexCompile generates polished review. exportMermaid visualizes phylogeny with HGT events from Pearson et al. (2009).
Use Cases
"Analyze pangenome sizes across B. pseudomallei strains from Holden 2004 and recent citations"
Research Agent → searchPapers + citationGraph → Analysis Agent → runPythonAnalysis (pandas aggregation of accessory genome fractions) → CSV export of size distributions and plasticity metrics.
"Write LaTeX review section on genomic islands in melioidosis pathogen evolution"
Synthesis Agent → gap detection on Holden 2004/Yu 2006 → Writing Agent → latexEditText + latexSyncCitations (10 papers) + latexCompile → PDF with mermaid phylogeny diagram.
"Find code for B. pseudomallei phylogeny reconstruction amid HGT"
Research Agent → paperExtractUrls (Pearson 2009) → Code Discovery → paperFindGithubRepo + githubRepoInspect → Python scripts for Roary pangenome analysis and IQ-TREE phylogenomics.
Automated Workflows
Deep Research workflow conducts systematic review: searchPapers 'B. pseudomallei genomic plasticity' → citationGraph → DeepScan 7-step analysis with GRADE checkpoints on 50+ papers → structured report on HGT trends. Theorizer generates hypotheses linking type VI secretion plasticity (Schwarz 2010) to melioidosis adaptation via literature synthesis. DeepScan verifies phylogeographic claims from Pearson (2009) with CoVe chain-of-verification across citing genomes.
Frequently Asked Questions
What defines B. pseudomallei genomic plasticity?
It encompasses genome rearrangements via 23 IS elements, 16 islands, and 6 prophages, plus high HGT enabling adaptive evolution (Holden et al., 2004).
What methods study this plasticity?
Comparative genomics against B. thailandensis, pangenome analysis, and phylogeographic reconstruction despite HGT (Yu et al., 2006; Pearson et al., 2009).
What are key papers?
Holden et al. (2004, 768 citations) details genome features; Pearson et al. (2009, 188 citations) addresses HGT phylogeny; Sawana et al. (2014, 461 citations) covers genus phylogenomics.
What open problems exist?
Linking specific plastic elements to virulence functions and predicting evolution from global strain surveillance (Yu et al., 2006; Pearson et al., 2009).
Research Burkholderia infections and melioidosis with AI
PapersFlow provides specialized AI tools for Medicine researchers. Here are the most relevant for this topic:
Systematic Review
AI-powered evidence synthesis with documented search strategies
AI Literature Review
Automate paper discovery and synthesis across 474M+ papers
Find Disagreement
Discover conflicting findings and counter-evidence
Paper Summarizer
Get structured summaries of any paper in seconds
See how researchers in Health & Medicine use PapersFlow
Field-specific workflows, example queries, and use cases.
Start Researching Burkholderia pseudomallei Genomic Plasticity with AI
Search 474M+ papers, run AI-powered literature reviews, and write with integrated citations — all in one workspace.
See how PapersFlow works for Medicine researchers