Cloning and sequence analysis of coat protein gene for characterization of sugarcane mosaic virus isolated from sugarcane and maize in Thailand

Cloning and sequence analysis of coat protein gene for characterization of sugarcane mosaic virus... Three isolates of sugarcane mosaic virus (SCMV) from sugarcane and maize in Thailand, were selected and used as viral sources for coat protein (CP) genes cloning by immunocapture reverse transcription polymerase chain reaction (IC-RT-PCR). The CP gene sequences and their deduced amino acids were determined. The sequences of three cloned CP genes, UT6TH-sgc and UD7TH-sgc from sugarcane, and SBC2TH-mz from maize were compared with other previously reported sequences of SCMV-CP gene and their phylogeny were studied. The analysis revealed that Thai SCMV CP gene contained 942 nucleotides encoded for coat protein MW of 33.65 kDa. The nucleotide sequence identity among cloned CPs from three isolates were 98–99% to each other. The N-terminus of the Thai SCMV CP contained a distinctive sequence, especially at nucleotide positions 28–46 of the N-terminal variable 70 amino acid residues which discriminated Thai SCMV from all previously reported SCMV isolates. Thai SCMV were placed in a separate branch of SCMV-MDB cluster which is closely related to most of SCMV isolates from maize, and distinct from the other cluster containing sugarcane-SCMV strains. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Cloning and sequence analysis of coat protein gene for characterization of sugarcane mosaic virus isolated from sugarcane and maize in Thailand

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Publisher
Springer-Verlag
Copyright
Copyright © 2006 by Springer-Verlag/Wien
Subject
Biomedicine; Medical Microbiology; Infectious Diseases; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-005-0643-5
Publisher site
See Article on Publisher Site

Abstract

Three isolates of sugarcane mosaic virus (SCMV) from sugarcane and maize in Thailand, were selected and used as viral sources for coat protein (CP) genes cloning by immunocapture reverse transcription polymerase chain reaction (IC-RT-PCR). The CP gene sequences and their deduced amino acids were determined. The sequences of three cloned CP genes, UT6TH-sgc and UD7TH-sgc from sugarcane, and SBC2TH-mz from maize were compared with other previously reported sequences of SCMV-CP gene and their phylogeny were studied. The analysis revealed that Thai SCMV CP gene contained 942 nucleotides encoded for coat protein MW of 33.65 kDa. The nucleotide sequence identity among cloned CPs from three isolates were 98–99% to each other. The N-terminus of the Thai SCMV CP contained a distinctive sequence, especially at nucleotide positions 28–46 of the N-terminal variable 70 amino acid residues which discriminated Thai SCMV from all previously reported SCMV isolates. Thai SCMV were placed in a separate branch of SCMV-MDB cluster which is closely related to most of SCMV isolates from maize, and distinct from the other cluster containing sugarcane-SCMV strains.

Journal

Archives of VirologySpringer Journals

Published: Jan 1, 2006

References

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