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Distribution and characterization of Iranian beet black scorch virus

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Mehrvar, Mohsen [UCL] Bragard, Claude [UCL]

The Iranian provinces where sugar beet is cultivated have been surveyed for the presence of Beet black scorch virus. Sixty two samples (31%) out of two hundred and three samples showed positive response by RT-PCR in ten out of thirteen Iranian provinces (Khorasan Shomali, Khorasan Razavi, Ghazvine,Zanjan, Ardabil, Azarbijaan Sharghi, Azarbijaan Gharbi, Kermanshah, Hamadan and Kerman). The BBSV satellite was found in nineteen samples (9.3 %) out of 203 in all provinces except Azarbaeijan Shargi. The presence of BBSV was systematically associated by the presence of BNYVV and/or other soil-borne pomoviruses. The complete genome sequences of three Iranian BBSV isolates have been determined. The three isolates, one with satellite designated BBSVHa1 and two without satellite designated BBSV-AzGh and BBSV-Ha2 showed 97% nucleotide identity between the fi rst two and 88 % between the two fi rst and third one. The identity between two Iranian isolates of BBSV-AzGh, BBSV-Ha1 and one isolate of BBSV-Ha2 by both genomes of the ‘Ningxia’ isolate of BBSV (BBSV-N) from China and ‘BBSV-Co’ from US were 89 % and 88 % respectively in nt level of whole genomes. In all of the cases Iranian BBSV was accompanied by BNYVV causal agent of rhizomania.

Document type Communication à un colloque (Conference Paper) – Conférence invitée / Keynote
Access type Accès restreint
Publication date 2008
Language Anglais
Conference "the seventh symposium of the Internatinal woking group on plant viruses with fungal vectors", Quedlinburg, Germany (du 01/09/2008 au 04/09/2008)
Peer reviewed yes
Host document Charlie M. Rush ed. ; "Proceedings of the seventh symposium of the Internatinal woking group on plant viruses with fungal vectors"- p. 1-5
Publication status Publié
Affiliation UCL - SST/ELI/ELIM - Applied Microbiology
Keywords 3130
Links
Bibliographic reference Mehrvar, Mohsen ; Bragard, Claude. Distribution and characterization of Iranian beet black scorch virus.the seventh symposium of the Internatinal woking group on plant viruses with fungal vectors (Quedlinburg, Germany, du 01/09/2008 au 04/09/2008). In: Charlie M. Rush ed., Proceedings of the seventh symposium of the Internatinal woking group on plant viruses with fungal vectors, 2008, p. 1-5
Permanent URL http://hdl.handle.net/2078.1/179162