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  • Title: Horizontal transmission of group-I ribozymes: viruses as a carrier of the introns.
    Author: Yamada T, Songsri P, Tamura K.
    Journal: Nucleic Acids Symp Ser; 1995; (34):119-20. PubMed ID: 8841581.
    Abstract:
    The nucleotide sequences of two self-splicing group I introns found in viruses that infect the eukaryotic green alga Chlorella were compared with those of 19 nuclear group I introns of 11 green algae, 1 red alga, 2 yeasts and 1 protist. The similarity ranging from 69.5% to 89.0% in any comparison strongly suggested a close relatedness of these introns. Since this kind of viruses infect algal cells residing in protists such as Paramecium, they may serve as a mediator to spread group I introns horizontally among organisms of different phylogenetic kingdoms.
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