Sequence analysis of three citrus viroids infecting a single Tunisian citrus tree (Citrus, reticulata, Clementine)

AUTOR(ES)

Elleuch, Amine, Khouaja, Fattouma Djilani, Hamdi, Imen, Bsais, Nabiha, Perreault, Jean-Pierre, Marrakchi, Mohamed, Fakhfakh, Hatem

FONTE

Genetics and Molecular Biology

DATA DE PUBLICAÇÃO

2006

RESUMO

We report the nucleotide sequences of three citrus viroids belonging to three different genera: Citrus exocortis viroid (CEVd), Hop stunt viroid (HSVd) and Citrus viroid-III (CVd-III) isolated from a single natural infected Citrus reticulata var. Clementine tree growing in a tree nursery in Manouba (near Tunis Capital). We describe the sequence variability of these viroids from their natural host without using an alternative passage by an indicator host or an artificial inoculation. This work confirms that naturally occurring viroid infections contain a mixture of sequence variants. These are the first sequences of citrus viroids from Africa.

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