期刊
BMC GENOMICS
卷 17, 期 -, 页码 -出版社
BMC
DOI: 10.1186/s12864-015-2347-x
关键词
Penicillium griseofulvum; genome sequencing; secondary metabolites; postharvest disease; blue mold; patulin; roquefortine C; griseofulvin
资金
- European Union [LIFE13 ENV/HR/000580]
- Spanish Ministry of Economy and Competitiveness [BIO2012-37161]
- Qatar National Research Fund [NPRP5-298-3-086]
- European Research Council [ERC-2012-StG-310325]
- Spanish Ministry of Economy and Innovation [AGL2011-30519-C03-01]
- Generalitat Valenciana, Spain [PROMETEOII/2014/027]
- ICREA Funding Source: Custom
Background: Penicillium griseofulvum is associated in stored apples with blue mould, the most important postharvest disease of pome fruit. This pathogen can simultaneously produce both detrimental and beneficial secondary metabolites (SM). In order to gain insight into SM synthesis in P. griseofulvum in vitro and during disease development on apple, we sequenced the genome of P. griseofulvum strain PG3 and analysed important SM clusters. Results: PG3 genome sequence (29.3 Mb) shows that P. griseofulvum branched off after the divergence of P. oxalicum but before the divergence of P. chrysogenum. Genome-wide analysis of P. griseofulvum revealed putative gene clusters for patulin, griseofulvin and roquefortine C biosynthesis. Furthermore, we quantified the SM production in vitro and on apples during the course of infection. The expression kinetics of key genes of SM produced in infected apple were examined. We found additional SM clusters, including those potentially responsible for the synthesis of penicillin, yanuthone D, cyclopiazonic acid and we predicted a cluster putatively responsible for the synthesis of chanoclavine I. Conclusions: These findings provide relevant information to understand the molecular basis of SM biosynthesis in P. griseofulvum, to allow further research directed to the overexpression or blocking the synthesis of specific SM.
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