|Table of Contents|

Analysis on Codon Usage and Evolution of Soybean Mosaic Virus(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年06期
Page:
801-807
Research Field:
Publishing date:

Info

Title:
Analysis on Codon Usage and Evolution of Soybean Mosaic Virus
Author(s):
YUAN Yuan; HUANG Sai-hua; WANG Cheng-kun; ZHI Hai-jian
Soybean Research Institute of Nanjing Agricultural University/National Center for Soybean Improvement，National Key Laboratory for Crop Genetics and Germplasm Enhancement，Nanjing 210095,China
Keywords:
Soybean Mosaic Virus; Codon usage bias; Multivariate analysis; Evolution
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.06.0801
Abstract:
The codon usage and evolution of 57 SMV isolates from different countries were analyzed in this study.The results indicated that GC content of codons was lower than AT in SMV isolates.GC3 content was less than 50%.SMV preferred to use those codons ending with A or T.GC content at three positions of codons(GC1,GC2 and GC3)had a significant correlation with each other(P<0.01).ENC value was between 49.42 and 51.78,which meant that the codon bias existed while it was not significant.Corresponding analysis(COA)indicated that Axis 1 appeared 67.84% variation.There were significant correlation(P<0.01)among ENC,GC3 and GC12.Above results with the analysis of Neutralityplot and ENC plot revealed that codon bias was influenced mainly by mutation pressure.And the comparative analysis of RSCU discovered 19 optimized codons in SMV.Cluster analysis based upon RSCU proved that SMV codon bias was related with their geographical origin.

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Last Update: 2014-12-25