Comparisons of coat protein gene sequences show that East African isolates of Sweet potato feathery mottle virus form a genetically distinct group

Sweet potato feathery mottle virus (SPFMV, genus Potyvirus) infects sweet potatoes (Ipomoea batatas) worldwide, but no sequence data on isolates from Africa are available. Coat protein (CP) gene sequences from eight East African isolates from Madagascar and different districts of Uganda (the second...

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Bibliographic Details
Published in:Archives of virology 2000-01, Vol.145 (3), p.567-574
Main Authors: KREUZE, J. F, KARYEIJA, R. F, GIBSON, R. W, VALKONEN, J. P. T
Format: Article
Language:English
Subjects:
Africa
Africa, Eastern
Amino Acid Sequence
Biological and medical sciences
Capsid - genetics
CP gene
DNA, Complementary
Fundamental and applied biological sciences. Psychology
Genes, Viral
Genetics
Ipomoea batatas
Microbiology
Molecular Sequence Data
Niger
Nigeria
Phylogeny
Phytopathology. Animal pests. Plant and forest protection
Plant Diseases - virology
Plant viruses and viroids
Potyvirus
Potyvirus - classification
Potyvirus - genetics
Potyvirus - isolation & purification
Reverse Transcriptase Polymerase Chain Reaction
RNA, Viral - genetics
Sequence Analysis, DNA
Solanaceae - virology
Sweet potato feathery mottle virus
Systematics. Structure, properties and multiplication. Genetics
Uganda
Virology
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Summary:Sweet potato feathery mottle virus (SPFMV, genus Potyvirus) infects sweet potatoes (Ipomoea batatas) worldwide, but no sequence data on isolates from Africa are available. Coat protein (CP) gene sequences from eight East African isolates from Madagascar and different districts of Uganda (the second biggest sweet potato producer in the world) and two West African isolates from Nigeria and Niger were determined. They were compared by phylogenetic analysis with the previously reported sequences of ten SPFMV isolates from other continents. The East African SPFMV isolates formed a distinct cluster, whereas the other isolates were not clustered according to geographic origin. These data indicate that East African isolates of SPFMV form a genetically unique group.
ISSN:0304-8608
1432-8798
DOI:10.1007/s007050050047