Sequence diversity in the coat protein coding region of twelve sugarcane mosaic potyvirus isolates from Australia, USA and South Africa

We have sequenced the coat protein (CP) coding region of 11 field isolates of SCMV from Australia, USA and South Africa. The differences between the nucleotide sequences of the isolates was 0.2 to 4.1% and the encoded amino acid sequences differed by 0.0 to 3.5%. Phylogenetic analysis of the CP codi...

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Bibliographic Details
Published in:Archives of virology 1998-01, Vol.143 (6), p.1145-1153
Main Authors: Handley, J.A, Smith, G.R, Dale, J.L, Harding, R.M
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Base Sequence
Biological and medical sciences
Capsid - chemistry
Capsid - genetics
Fundamental and applied biological sciences. Psychology
genbank/u84578
genbank/u84579
genbank/u84580
nucleotide sequences
Phylogeny
Phytopathology. Animal pests. Plant and forest protection
Plant viruses and viroids
Plants - virology
Potyvirus - chemistry
Potyvirus - classification
Systematics. Structure, properties and multiplication. Genetics
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Summary:We have sequenced the coat protein (CP) coding region of 11 field isolates of SCMV from Australia, USA and South Africa. The differences between the nucleotide sequences of the isolates was 0.2 to 4.1% and the encoded amino acid sequences differed by 0.0 to 3.5%. Phylogenetic analysis of the CP coding sequences of the SCMV isolates and the related potyviruses SCMV-MDB, JGMV, SrMV, MDMV-A and PVY showed that the SCMV isolates formed a tightly clustered group, with SCMV-MDB forming a separate branch. This indicated that (i) the SCMV isolates are of one strain (SCMV-A) and not geographically distinct species and (ii) SCMV-MDB is clearly distinct, and may represent another potyvirus species.
ISSN:0304-8608
1432-8798
DOI:10.1007/s007050050362