http://www.cnr.it/ontology/cnr/individuo/prodotto/ID66603
Potato virus Y CFH, a putative recombinant isolate from Capsicum chinense cv. Habanero. (Articolo in rivista)
- Type
- Label
- Potato virus Y CFH, a putative recombinant isolate from Capsicum chinense cv. Habanero. (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
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- Comes S.; Fanigliulo A.; Pacella R.; Parrella G.; Crescenzi A. (literal)
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- Parrella G.: Istituto per la Protezione delle Piante, CNR, Via Università 133, 80055 Portici, Napoli,
Italy
Comes S., Fanigliulo A., Pacella R., Crescenzi A.: Università degli Studi della Basilicata, Dipartimento di Biologia, Difesa e Biotecnologie
Agro-Forestali, Campus Macchia Romana 3A310, I-85100 Potenza, Italy (literal)
- Titolo
- Potato virus Y CFH, a putative recombinant isolate from Capsicum chinense cv. Habanero. (literal)
- Abstract
- Ornamental plants of Chili pepper, Capsicum chinense cv. Habanero, with symptoms of leaf mosaic, necrotic rings on fruits and necrotic stems were observed in June 2003 in a private garden in the province of Naples (Italy). Preliminary serological characterisation allowed the association of these symptoms with infections by Potato virus Y (PVY). The virus was isolated on Nicotiana tabacum cv. Xanthi and characterised by mechanical inoculation on herbaceous hosts and molecular characterisation of the P1 and the coat protein (CP) genes. Symptoms produced on indicator plants were generally consistent with those described for PVY. The identity of PVY was further confirmed by reaction with PVYN, PVYC and PVYO specific monoclonal antibodies: the isolate reacted only with the PVYC specific Mab. Immuno capture reverse transcription polymerase chain reaction (IC-RT-PCR) was performed on extracts of PVY-CFH infected N. tabacum cv. Xanthi plants, using two couples of primers specifically designed out of the P1 and the CP coding regions of the so far fully sequenced PVY isolates. PCR products were then cloned into pCRII-TOPO vector using TOPO-TA cloning kit (Invitrogen) and sequenced. Sequence analysis suggests that PVY-CFH originated from a recombination event involving a virus of the PVYO type and another parental virus, maybe resembling the PVYNP isolates, given the reasonably high similarity shared by PVY-CFH and, respectively, non potato PVY isolates in the CP coding region, PVYO isolates in the P1 coding region. Evidence for the existence of such a recombination comes, apart from similarity analysis, by the different locations of CFH within phylogenetic trees constructed from P1 and CP genomic regions. (literal)
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