A naturally occurring recombinant isolate of Lettuce mosaic virus
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Undergraduate course
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Springer
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Abstract
LMV-Common and LMV-Most are two seed-borne types of Lettuce mosaic virus (LMV), genus Potyvirus. LMV-Most, but not LMV-Common, overcomes the resistance afforded to lettuce by two recessive genes, mo1(1) and mo1(2). An RT-PCR-based assay thought to be specific for LMV-Most also amplified LMV-Tn2, previously typified as LMV-Common. The sequence of selected regions along the genome indicated that LMV-Tn2 is a natural recombinant between LMV-Most and LMV-Common isolates, with a putative recombination site located within the P3 coding region. This is the first evidence of a naturally occurring LMV recombinant isolate.
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English
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Archives of Virology. Vienna: Springer-verlag Wien, v. 149, n. 1, p. 191-197, 2004.
