Description of an orthologous cluster of ochratoxin A biosynthetic genes in Aspergillus and Penicillium species. A comparative analysis

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dc.contributor.authorGil-Serna, Jessica
dc.contributor.authorGarcía-Díaz, Marta
dc.contributor.authorGonzález Jaén, María Teresa
dc.contributor.authorVázquez Estevez, Covandonga
dc.contributor.authorPatiño Álvarez, Belén
dc.date.accessioned2023-06-17T12:27:27Z
dc.date.available2023-06-17T12:27:27Z
dc.date.issued2018-03-02
dc.description.abstractOchratoxin A (OTA) is one of the most important mycotoxins due to its toxic properties and worldwide distribution which is produced by several Aspergillus and Penicillium species. The knowledge of OTA biosynthetic genes and understanding of the mechanisms involved in their regulation are essential. In this work, we obtained a clear picture of biosynthetic genes organization in the main OTA-producing Aspergillus and Penicillium species (A. steynii, A. westerdijkiae, A. niger, A. carbonarius and P. nordicum) using complete genome sequences obtained in this work or previously available on databases. The results revealed a region containing five ORFs which predicted five proteins: halogenase, bZIP transcription factor, cytochrome P450 monooxygenase, non-ribosomal peptide synthetase and polyketide synthase in all the five species. Genetic synteny was conserved in both Penicillium and Aspergillus species although genomic location seemed to be different since the clusters presented different flanking regions (except for A. steynii and A. westerdijkiae); these observations support the hypothesis of the orthology of this genomic region and that it might have been acquired by horizontal transfer. New real-time RT-PCR assays for quantification of the expression of these OTA biosynthetic genes were developed. In all species, the five genes were consistently expressed in OTA-producing strains in permissive conditions. These protocols might favour futures studies on the regulation of biosynthetic genes in order to develop new efficient control methods to avoid OTA entering the food chain.
dc.description.departmentDepto. de Genética, Fisiología y Microbiología
dc.description.facultyFac. de Ciencias Biológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/47564
dc.identifier.doi10.1016/j.ijfoodmicro.2017.12.028
dc.identifier.issn0168-1605, ESSN: 1879-3460
dc.identifier.officialurlhttps://www.sciencedirect.com/science/article/pii/S0168160517305573
dc.identifier.urihttps://hdl.handle.net/20.500.14352/12110
dc.journal.titleInternational Journal of Food Microbiology
dc.language.isoeng
dc.page.final43
dc.page.initial35
dc.publisherElsevier
dc.relation.projectID(AGL 2014-53928-C2-2-R) (BES-2015-074533)
dc.rights.accessRightsrestricted access
dc.subject.cdu582.28
dc.subject.cdu579.25
dc.subject.cdu579.67
dc.subject.keywordCluster
dc.subject.keywordHalogenase
dc.subject.keywordP450
dc.subject.keywordPKS
dc.subject.keywordNRPS
dc.subject.keywordbZIP
dc.subject.ucmGenética
dc.subject.ucmMicrobiología (Biología)
dc.subject.unesco2409 Genética
dc.subject.unesco2414 Microbiología
dc.titleDescription of an orthologous cluster of ochratoxin A biosynthetic genes in Aspergillus and Penicillium species. A comparative analysis
dc.typejournal article
dc.volume.number268
dspace.entity.typePublication
relation.isAuthorOfPublicationc6e49c5c-cd3d-4aa3-b582-4a5221825dc0
relation.isAuthorOfPublication.latestForDiscoveryc6e49c5c-cd3d-4aa3-b582-4a5221825dc0
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