Database Authors
Diego Santos-Garcia1, Francisco J. Silva1
1Cavanilles Institute of Biodiversity and Evolutionary Biology
Summary Candidatus Portiera aleyrodidarum BT-QVLC is a primary endosymbiont of Bemisia tabaci MED species (strain QHC-VLC). Bemisia tabaci feeds on plant sap that is very rich in sugars but poor in amino acids and cofactors. Candidatus Portiera aleyrodidarum BT-QVLC presents an extreme reduced genome with unusual large intergenic regions. It is able to produce several essential amino acids and carotenoids but the host needs a secondary endosymbiont to fulfill its unbalanced diet.

The PGDB was created from the annotated genome [SantosGarcia12] by a team from the Cavanilles Institute of Biodiversity and Evolutionary Biology in Paterna, Spain, using the PathoLogic component of the Pathway Tools software [Karp11, Karp19] and the MetaCyc reference database [Caspi20]. The PGDB, which integrates the biochemical reaction network and metabolic pathways of the organism with its genome, was improved by limited manual curation.

Genome
RepliconTotal GenesProtein GenesRNA GenesPseudogenesSize (bp)NCBI Link
Chr1291247377357,472RefSeq:NC_018618
Ortholog data available?Yes
Database Contents
Genes291
Pathways44
Enzymatic Reactions259
Transport Reactions12
Polypeptides248
Protein Complexes24
Enzymes106
Transporters14
Compounds224
Transcription Units102
tRNAs33
Protein Features397
Database Version29.0
Sequence SourceCavanilles Institute
Synonyms Candidatus Portiera aleyrodidarum BT-QVLCCavanilles Institute
Candidatus Portiera aleyrodidarum BT-QVLCEvolutionary Genetics, Instituto Cavanilles
Taxonomic Lineage cellular organisms
Bacteria <bacteria>
Pseudomonadota
Gammaproteobacteria
Oceanospirillales
Halomonadaceae
Zymobacter group
whitefly endosymbionts
Candidatus Portiera
Candidatus Portiera aleyrodidarum
Candidatus Portiera aleyrodidarum BT-QVLC
Genetic Code Number 11 -- Bacterial, Archaeal and Plant Plastid (same as Standard, except for alternate initiation codons)
GOLD0034250
NCBI-Taxonomy1239881

References

Caspi20: Caspi R, Billington R, Keseler IM, Kothari A, Krummenacker M, Midford PE, Ong WK, Paley S, Subhraveti P, Karp PD (2020). "The MetaCyc database of metabolic pathways and enzymes - a 2019 update." Nucleic Acids Res 48(D1);D445-D453. PMID: 31586394

Karp11: Karp PD, Latendresse M, Caspi R (2011). "The pathway tools pathway prediction algorithm." Stand Genomic Sci 5(3);424-9. PMID: 22675592

Karp19: Karp PD, Midford PE, Billington R, Kothari A, Krummenacker M, Latendresse M, Ong WK, Subhraveti P, Caspi R, Fulcher C, Keseler IM, Paley SM (2019). "Pathway Tools version 23.0 update: software for pathway/genome informatics and systems biology." Brief Bioinform. PMID: 31813964

SantosGarcia12: Santos-Garcia D, Farnier PA, Beitia F, Zchori-Fein E, Vavre F, Mouton L, Moya A, Latorre A, Silva FJ (2012). "Complete genome sequence of "Candidatus Portiera aleyrodidarum" BT-QVLC, an obligate symbiont that supplies amino acids and carotenoids to Bemisia tabaci." J Bacteriol 194(23);6654-5. PMID: 23144402

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