Archives of Virology (2006) 151, 1539-1549

F. Di Serio, J.A. Daròs, A. Ragozzino and R. Flores (2006)
Close structural relationship between two hammerhead viroid-like RNAs associated with Cherry chlorotic rusty spot disease
Archives of Virology 151 (8), 1539-1549
Abstract: Analysis of the population of cherry small circular RNAs (cscRNAs) from trees affected by cherry chlorotic rusty spot (CCRS) showed two groups of variants with similar sequence but differing in size (394-415 and 372-377 nt for cscRNA1 and cscRNA2, respectively) because of the presence or absence of a 27-nt fragment folding into a hairpin in their predicted quasi-rod-like secondary structures. These structures were preserved by co-variations and compensatory mutations, as well as by additional complex rearrangements. The variability also preserved the central conserved core and the stability of the helices of the plus and minus hammerhead ribozymes, supporting their role in replication of cscRNAs. The smaller variants most likely derive from the larger through recombination events. Possible functional relationships between cscRNAs and certain mycoviral-like double-stranded RNAs, also associated with CCRS, are discussed.
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Link to article at publishers website
Database assignments for author(s): Francesco Di Serio, José-Antonio Daròs

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
molecular biology - genes

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cherry chlorotic rusty spot