Molecular Evidence for the Existence of Two Distinct Subgroups in Cucumber Mosaic Cucumovirus |
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Authors: | Szilassy De´nes Sala´nki Katalin Bala´zs Ervin |
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Institution: | (1) Agricultural Biotechnology Center, Go¨do¨ll, Hungary |
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Abstract: | Infectious full-length cDNA clones from the genomic RNAs of a subgroup II cucumber mosaic cucumovirus strain (Trk7) were obtained. Sequence analysis of the whole genome revealed strong homology (99%) to the genome of Q-CMV, the only subgroup II strain whose entire genomic nucleotide sequence had been available in the database, and an overall 75% homology to those of subgroup I strains. We provide sequence comparisons of different parts of 1a, 2a and 2b proteins of Cucumovirus species, and propose phylogenetic trees based on these protein sequences. |
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Keywords: | cucumber mosaic cucumovirus RNA helicase RNA polymerase phylogenetic relationship |
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