Nucleotide sequence and proposed secondary structure ofColumnealatent viroid: a natural mosaic of viroid sequences | Zendy

R. W. Hammond | Zendy; Dennis R. Smith | Zendy; T.O. Diener | Zendy

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Nucleotide sequence and proposed secondary structure ofColumnealatent viroid: a natural mosaic of viroid sequences

Author(s) -

R. W. Hammond,

Dennis R. Smith,

T.O. Diener

Publication year - 1989

Publication title -

nucleic acids research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 9.008

H-Index - 537

eISSN - 1362-4954

pISSN - 0305-1048

DOI - 10.1093/nar/17.23.10083

Subject(s) - viroid , biology , potato spindle tuber viroid , rna , nucleic acid sequence , nucleotide , virology , genetics , base pair , microbiology and biotechnology , dna , gene

The Columnea latent viroid (CLV) occurs latently in certain Columnea erythrophae plants grown commercially. In potato and tomato, CLV causes potato spindle tuber viroid (PSTV)-like symptoms. Its nucleotide sequence and proposed secondary structure reveal that CLV consists of a single-stranded circular RNA of 370 nucleotides which can assume a rod-like structure with extensive base-pairing characteristic of all known viroids. The electrophoretic mobility of circular CLV under nondenaturing conditions suggests a potential tertiary structure. CLV contains extensive sequence homologies to the PSTV group of viroids but contains a central conserved region identical to that of hop stunt viroid (HSV). CLV also shares some biological properties with each of the two types of viroids. Most probably, CLV is the result of intracellular RNA recombination between an HSV-type and one or more PSTV-type viroids replicating in the same plant.

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