NDLI: Molecular and biological comparison of two Tomato yellow ring virus (TYRV) isolates: challenging the Tospovirus species concept

Content Provider	Springer Nature Link
Author	Hassani Mehraban, A. Saaijer, J. Peters, D. Goldbach, R. Kormelink, R.
Copyright Year	2006
Abstract	Two strains of Tomato yellow ring virus (TYRV, genus Tospovirus), one from tomato (referred to as TYRV-t) and the other from soybean and potato (denoted TYRV-s), collected from different geographical regions in Iran, were compared. Their genomic S RNA segments differed in size by 55 nucleotides. Comparison of the S RNA intergenic regions revealed the absence of a stretch of 115 nucleotides within the S RNA segment of TYRV-s and, conversely, of 56 nts in that of TYRV-t, apparently a stable genetic difference as it was also found in another isolate of TYRV-s collected from potato. Sequence comparison of the N protein ORFs revealed an identity of 92% between the N proteins of both strains, and the observed strong cross-reaction of TYRV-s in DAS-ELISA with a polyclonal antiserum directed against the TYRV-t N protein confirmed this high identity. Host range analysis revealed several differences, e.g. TYRV-s, but not TYRV-t, being able to systemically infect Nicotiana species, and TYRV-s being localised in tomato. The observed molecular and biological differences of both viruses call into question the currently used criteria for Tospovirus species demarcation.
Starting Page	85
Ending Page	96
Page Count	12
File Format	PDF
ISSN	03048608
Journal	Archives of Virology
Volume Number	152
Issue Number	1
e-ISSN	14328798
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-08-21
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Medical Microbiology Virology Infectious Diseases
Content Type	Text
Resource Type	Article
Subject	Virology Medicine

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