Document Detail


The genetic diversity of Citrus dwarfing viroid populations is mainly dependent on the infected host species.
MedLine Citation:
PMID:  23152366     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
As with viruses, viroids infect their hosts as polymorphic populations of variants. Identifying possible sources of genetic variability is significant in the case of Citrus dwarfing viroid (CDVd) which has been proposed as a dwarfing agent for high-density citrus plantings. Here, a natural CDVd isolate (CMC) was used as an inoculum source for long-term (twenty-five years) and short-term (one year) bioassays in different citrus host species. Characterization of progenies indicates that the genetic stability of CDVd populations was high in certain hosts (trifoliate orange, Troyer citrange, Etrog citron, Navelina sweet orange), which preserve viroid populations similar to the original CMC isolate even after 25 years. By contrast, CDVd variant populations in Interdonato lemon and Volkamer lemon were completely different to those in the inoculated sources, highlighting how influential the host is on the genetic variability of CDVd populations. Implications for risk assessment of CDVd as a dwarfing agent are discussed.
Authors:
Matilde Tessitori; Serena Rizza; Antonella Reina; Giovanni Causarano; Francesco Di Serio
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-14
Journal Detail:
Title:  The Journal of general virology     Volume:  -     ISSN:  1465-2099     ISO Abbreviation:  J. Gen. Virol.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0077340     Medline TA:  J Gen Virol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
University of Catania;
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