The nucleotide sequence of a Polish isolate of Tomato torrado virus.
A new virus was isolated from greenhouse tomato plants showing symptoms of leaf and apex necrosis in Wielkopolska province in Poland in 2003. The observed symptoms and the virus morphology resembled viruses previously reported in Spain called Tomato torrado virus (ToTV) and that in Mexico called Tomato marchitez virus (ToMarV). The complete genome of a Polish isolate Wal'03 was determined using RT-PCR amplification using oligonucleotide primers developed against the ToTV sequences deposited in Genbank, followed by cloning, sequencing, and comparison with the sequence of the type isolate. Phylogenetic analyses, performed on the basis of fragments of polyproteins sequences, established the relationship of Polish isolate Wal'03 with Spanish ToTV and Mexican ToMarV, as well as with other viruses from Sequivirus, Sadwavirus, and Cheravirus genera, reported to be the most similar to the new tomato viruses. Wal'03 genome strands has the same organization and very high homology with the ToTV type isolate, showing only some nucleotide and deduced amino acid changes, in contrast to ToMarV, which was significantly different. The phylogenetic tree clustered aforementioned viruses to the same group, indicating that they have a common origin.
Budziszewska
Marta
M
Interdepartmental Laboratory of Molecular Biology, Plant Protection Institute, W. Wegorka 20, Street, 60-318, Poznan, Poland. m.budziszewska@ior.poznan.pl
Obrepalska-Steplowska
Aleksandra
A
Wieczorek
Przemysław
P
Pospieszny
Henryk
H
D001483:Base Sequence; D018551:Solanum lycopersicum / Q000821:virology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D010935:Plant Diseases / Q000821:virology*; D010942:Plant Viruses / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D011044:Poland; D012328:RNA Viruses / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D012367:RNA, Viral / Q000235:genetics; D012689:Sequence Homology, Nucleic Acid
D012367:RNA, Viral
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