Genetic variation and evolutionary analysis of broad bean wilt virus 2

被引：36
作者：
Ferrer, Rosa M. [1 ]
Ferriol, Inmaculada [1 ]
Moreno, Pedro [1 ]
Guerri, Jose [1 ]
Rubio, Luis [1 ]
机构：
[1] IVIA, Valencia 46113, Spain
来源：
ARCHIVES OF VIROLOGY | 2011年 / 156卷 / 08期
关键词：
COMPLETE NUCLEOTIDE-SEQUENCE; CITRUS-TRISTEZA VIRUS; MILD MOSAIC-VIRUS; GENOME ORGANIZATION; MOLECULAR EVOLUTION; CHINESE ISOLATE; RNA; DNA; IDENTIFICATION; RECOMBINATION;
D O I：
10.1007/s00705-011-0990-3
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
The genetic variation and evolutionary mechanisms of broad bean wilt virus 2 (BBWV-2) were studied by nucleotide sequence analysis of four genomic regions of 30 isolates from different countries. Nucleotide diversity was high (0.198) for a plant virus. Phylogenetic and genetic structure analyses showed low population subdivision, suggesting a significant gene flow between distant geographic areas. Analysis of synonymous and nonsynonymous substitutions showed different negative selection pressures for different parts of the coding regions, but no positive selection was found. Several recombination detection methods showed that some BBWV-2 genomes might have originated from recombination or reassortment.
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收藏
页码：1445 / 1450
页数：6
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