Molecular characterization of two soybean-infecting begomoviruses from India and evidence for recombination among legume-infecting begomoviruses from South-East Asia

被引：42

作者：

Girish, KR ^{[1
]}

Usha, R ^{[1
]}

机构：

[1] Madurai Kamaraj Univ, Sch Biotechnol, Dept Plant Biotechnol, Madurai 625021, Tamil Nadu, India

来源：

VIRUS RESEARCH | 2005年 / 108卷 / 1-2期

关键词：

soybean; begomoviruses; mungbean yellow mosaic virus; diversity; recombination; agroinoculation;

D O I：

10.1016/j.virusres.2004.09.006

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The complete nucleotide sequences of two soybean-infecting begomoviruses have been determined from central and southern parts of India. Sequence analyses show that the isolate from central India is a strain of Mungbean yellow mosaic India virus (MYMIV) and the southern Indian isolate is a strain of Mungbean yellow mosaic virus (MYMV). Multiple DNA B components could be detected with the soybean strain of Mungbean yellow mosaic virus species. The nucleotide sequence similarity between the DNA A components of the two isolates is higher (82%) than that between the corresponding DNA B components (71%). Analyses of the common region of the genomic components of these two virus isolates indicate considerable divergence in the origin of replication (ori), which did not impair their infectivity as demonstrated for the central Indian isolate by agroinfection with partial tandem repeats (PTRs) of the genomic components. Detailed sequence and phylogenetic analyses reveal the distribution and possible recombination events among legume-infecting begomoviruses from South-East Asia. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：167 / 176

页数：10

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