Synthesis of full-length potyvirus cDNA copies suitable for the analysis of genome polymorphism.
J Virol Methods
; 67(2): 189-97, 1997 Sep.
Article
em En
| MEDLINE
| ID: mdl-9300384
ABSTRACT
New methods facilitating the synthesis and amplification of full-length cDNA copies of single-stranded viral RNA genomes have been developed. A method is described for the efficient purification of potyviral RNA and total RNA from infected plants and it is shown that they can serve as templates for the efficient synthesis of a full-length, 10 kb long, genomic cDNA. Two different reverse transcriptases were used (AMV-RT and MMLV-RT); only the first reverse transcriptase produced a good quality, full-length cDNA using viral RNA as a template. Surprisingly, MMLV-RT allowed for the full-length cDNA synthesis on virions rather than viral RNA. The PVY cDNA, synthesized using either RNA or virions, can be amplified successfully by PCR with high yields of full-length products. Such products are good substrates for the study by RFLP of the total genome polymorphism of virus isolates.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polimorfismo Genético
/
Genoma Viral
/
Potyvirus
/
DNA Complementar
Idioma:
En
Revista:
J Virol Methods
Ano de publicação:
1997
Tipo de documento:
Article
País de afiliação:
Polônia