NDLI: Molecular characterization of a new begomovirus infecting Sida cordifolia and its associated satellite DNA molecules

Content Provider	Springer Nature Link
Author	Guo, Xiaojian Zhou, Xueping
Copyright Year	2006
Abstract	Two virus isolates Hn57 and Hn60 were obtained from Sida cordifolia showing mild upward leaf-curling symptoms in Hainan province of China. Comparison of partial sequences of DNA-A like molecule confirmed the existence of a single type of begomovirus. The complete nucleotide sequence of DNA-A of Hn57 was determined to be 2757 nucleotides, with a genomic organization typical of begomoviruses. Complete sequence comparison with other reported begomoviruses revealed that Hn57 DNA-A has the highest sequence identity (71.0%) with that of Tobacco leaf curl Yunnan virus. Consequently, Hn57 was considered to be a new begomovirus species, for which the name Sida leaf curl virus (SiLCV) is proposed. In addition to DNA-A molecule, two additional circular single-stranded satellite DNA molecules corresponding to DNAβ and DNA1 were found to be associated with SiLCV isolates. Both DNAβ and DNA1 were approximately half the size of their cognate genomic DNA. Sequence analysis shows that DNAβ of Hn57 and Hn60 share 93.8% nucleotide sequence identity, and they have the highest sequence identity (58.5%) with DNAβ associated with Ageratum leaf curl disease (AJ316027). The nucleotide sequence identity between DNA1 of Hn57 and that of Hn60 was 83.8%, they share 58.2–79.3% nucleotide sequence identities in comparison with other previously reported DNAl.
Starting Page	279
Ending Page	285
Page Count	7
File Format	PDF
ISSN	09208569
Journal	Virus Genes
Volume Number	33
Issue Number	3
e-ISSN	1572994X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sida cordifolia begomovirus Sida leaf curl virus DNAβ DNA1 Medical Microbiology Virology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Virology Genetics Medicine Molecular Biology

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