Evolutionary relationship of alfalfa mosaic virus with cucumber mosaic virus and brome mosaic virus.
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Date
1983-09
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Abstract
The amino acid sequences of the non-structural protein (molecular weight
35,000; 3a protein) from three plant viruses – cucumber mosaic, brome mosaic and
alfalfa mosaic have been systematically compared using the partial genomic sequences
for these three viruses already available. The 3a protein of cucumber mosaic virus has
an amino acid sequence homology of 33.7% with the corresponding protein of brome
mosaic virus. A similar protein from alfalfa mosaic virus has a homology of 18.2% and
14.2% with the protein from brome mosaic virus and cucumber mosaic virus, respectively.
These results suggest that the three plant viruses are evolutionarily related,
although, the evolutionary distance between alfalfa mosaic virus and cucumber mosaic
virus or brome mosaic virus is much larger than the corresponding distance between
the latter two viruses.
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Keywords
Brome mosaic virus, cucumber mosaic virus, alfalfa mosaic virus, sequence homology, evolutionary relationship
Citation
Savithri H S, Murthy M R N. Evolutionary relationship of alfalfa mosaic virus with cucumber mosaic virus and brome mosaic virus. Journal of Biosciences. 1983 Sept; 5(3): 183-187.