GLBRC Populus Variovorax SynCom28

Community ID CommunityMech:000028

Ecological State ENGINEERED

Environment rhizosphere
ENVO:00005801

A defined, genome-resolved 28-strain synthetic community of Variovorax isolates from Populus deltoides and Populus trichocarpa roots. The community was used to identify strain-level partitioning between rhizosphere and endosphere compartments and genomic traits associated with endosphere specialization.

Taxonomy

Taxon	Ontology ID	Functional Roles	Abundance
Variovorax sp. BK119	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. BK151	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. BK370	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. BK460	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. BK613	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. BK658	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. BT01	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. CF079	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. CF313	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV004	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV008	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV014	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV035	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV040	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV042	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. GV051	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. OK202	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. OK212	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. OK605	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. OV084	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. OV329	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. OV700	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. PDC80	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. YR216	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. YR266	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. YR634	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. YR750	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."
Variovorax sp. YR752	NCBITaxon:34072	PRIMARY_DEGRADER	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."

Ecological Interactions

Taxon

Cross-feeding

Mutualism

Syntrophy

Competition

Commensalism

Niche partitioning

Colonization facilitation

Strain competition

Predation

Rhizosphere-Endosphere Niche Partitioning

NICHE_PARTITIONING

Evidence

PMID:41543249 - SUPPORT (IN_VIVO)

"we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments"
PMID:41543249 - SUPPORT (IN_VIVO)

"dominant endosphere colonizers are enriched in genes related to nutrient metabolism, redox balance, transcriptional regulation, and a conserved L-fucose utilization pathway"

Intraspecific Metabolic Competition

STRAIN_COMPETITION

Evidence

PMID:41543249 - SUPPORT (IN_VIVO)

"These findings reveal that multiple ecological strategies, such as metabolic competition, regulatory adaptation, and niche specialization, can support endosphere colonization."
PMID:41543249 - SUPPORT (IN_VIVO)

"Not all strains succeed through the same strategy. Community-wide functional profiling revealed a distinct and reduced set of traits in the endosphere"

L-Fucose Pathway Colonization Enhancement

COLONIZATION_FACILITATION

Metabolites: L-fucose (CHEBI:2181)

Biological Processes:

root colonization (GO:0044409)

Evidence

PMID:41543249 - SUPPORT (IN_VIVO)

"a conserved L-fucose utilization pathway experimentally shown to enhance root colonization"
PMID:41543249 - SUPPORT (IN_VIVO)

"host filtering selects for distinct, and sometimes complementary, microbial strategies"

Associated Datasets

Dataset	Type	Repository	Accession
Primary publication mSystems article describing the 28-strain Variovorax Populus SynCom analysis.	OTHER	OTHER	doi:10.1128/msystems.01605-25
DefCom strain metadata table Supplementary Table S1 listing the 28 Variovorax strains and metadata.	OTHER	ZENODO	zenodo:17466836#Supp_table_1_strain_info.csv
Raw metagenomic reads Strain-resolved metagenomic sequencing reads for rhizosphere and endosphere colonization analyses.	METAGENOME	NCBI_BIOPROJECT	PRJNA1322484

External Resources

Name	Repository	Resource ID
PubMed record Genomic signatures in Variovorax enabling colonization of the Populus endosphere.	OTHER	PMID:41543249
PMID:41543249 - SUPPORT (IN_VIVO) "By combining strain-resolved metagenomic profiling, comparative genomics, and functional assays, we demonstrate that dominant endosphere colonizers are enriched in genes related to nutrient metabolism, redox balance, transcriptional regulation, and a conserved L-fucose utilization pathway experimentally shown to enhance root colonization."
Zenodo analysis archive Reproducible workflow and supplemental tables including strain metadata for the DefCom.	OTHER	zenodo.17466836

Environmental Factors

Factor	Value	Unit
Endosphere selective pressure	host-filtered root endosphere	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "In particular, the endosphere represents a highly selective environment requiring host entry and in planta persistence."
Compartment partitioning design	rhizosphere versus endosphere	N/A
PMID:41543249 - SUPPORT (IN_VIVO) "Here, we use a defined, genome-resolved community of 28 Variovorax strains isolated from the roots of Populus deltoides and Populus trichocarpa (poplar trees) to determine which strains partition between rhizosphere and endosphere compartments and to identify the genomic traits associated with endosphere specialization."