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A novel natural mutation in HC-Pro responsible for mild symptomatology of Zucchini yellow mosaic virus (ZYMV, Potyvirus) in cucurbits

A novel natural mutation in HC-Pro responsible for mild symptomatology of Zucchini yellow mosaic... A natural mild isolate of Zucchini yellow mosaic virus was found to contain a mutation in the helper component (HC-Pro) within a conserved motif, “CDNQLD”, located 12 residues downstream from the “FRNK” motif involved in symptom severity. Introducing the mutation in an infectious cDNA clone of ZYMV resulted in an almost complete absence of symptoms, although viral accumulation was only partially reduced. The FRNK(X)12CDNQLD sequence might be part of a larger motif that is conserved in potyviruses and plays a role in symptomatology and/or silencing inhibition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

A novel natural mutation in HC-Pro responsible for mild symptomatology of Zucchini yellow mosaic virus (ZYMV, Potyvirus) in cucurbits

Archives of Virology , Volume 155 (3) – Mar 1, 2010

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References (37)

Publisher
Springer Journals
Copyright
Copyright © Springer-Verlag 2010
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
DOI
10.1007/s00705-009-0569-4
pmid
20112122
Publisher site
See Article on Publisher Site

Abstract

A natural mild isolate of Zucchini yellow mosaic virus was found to contain a mutation in the helper component (HC-Pro) within a conserved motif, “CDNQLD”, located 12 residues downstream from the “FRNK” motif involved in symptom severity. Introducing the mutation in an infectious cDNA clone of ZYMV resulted in an almost complete absence of symptoms, although viral accumulation was only partially reduced. The FRNK(X)12CDNQLD sequence might be part of a larger motif that is conserved in potyviruses and plays a role in symptomatology and/or silencing inhibition.

Journal

Archives of VirologySpringer Journals

Published: Mar 1, 2010

Keywords: Melon; Zucchini Yellow Mosaic Virus; Mild Strain; Silence Inhibition; Helper Component

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