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

Genetics and Molecular Biology

Amine Elleuch²  Fattouma Djilani Khouaja²  Imen Hamdi²  Nabiha Bsais¹  Jean-pierre Perreault¹  Mohamed Marrakchi²  Hatem Fakhfakh² 

[1] ,Université de Tunis Faculté des Sciences de Tunis Laboratoire de Génétique Moléculaire, Immunologie et BiotechnologieEl Manar Tunis ,Tunisie

关键词: CEVd;    CVd-III;    citrus;    HSVd;    quasi-species;    sequence variability;    viroid;   

DOI  :  10.1590/S1415-47572006000400020

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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