Abstract |
Although the biological variability of Watermelon mosaic virus is limited, isolates from the three main molecular groups differ in their ability to infect systemically Chenopodium quinoa. Mutations were introduced in a motif of three or five amino acids located in the N-terminal part of the coat protein, and differing in isolates from group 1 (motif: lysine- glutamic acid- alanine ( Lys-Glu-Ala) or KEA, systemic on C. quinoa), group 2 ( Lys-Glu-Thr or KET, not systemic on C. quinoa) and group 3 (KEKET, not systemic on C. quinoa). Mutagenesis of KEKET in an isolate from group 3 to KEA or KEKEA was sufficient to make the virus systemic on C. quinoa, whereas mutagenesis to KET had no effect. Introduction of a KEA motif in Zucchini yellow mosaic virus coat protein also resulted in systemic infection on C. quinoa. These mutations had no obvious effect on the disorder profile or potential post-translational modifications of the coat protein as determined in silico.
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Authors | Cecile Desbiez, Charlotte Chandeysson, Herve Lecoq |
Journal | Molecular plant pathology
(Mol Plant Pathol)
Vol. 15
Issue 2
Pg. 217-21
(Feb 2014)
ISSN: 1364-3703 [Electronic] England |
PMID | 24118745
(Publication Type: Journal Article)
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Copyright | © 2013 BSPP AND JOHN WILEY & SONS LTD. |
Chemical References |
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Topics |
- Capsid Proteins
(chemistry, physiology)
- Chenopodium quinoa
(virology)
- Potyvirus
(metabolism, pathogenicity)
- Virulence
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