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  • Title: A group I intron in the 18S ribosomal DNA from the parasitic fungus Isaria japonica.
    Author: Ito Y, Hirano T.
    Journal: J Mol Evol; 1999 Mar; 48(3):337-40. PubMed ID: 10093223.
    Abstract:
    The nucleotide sequence of the 18S rDNA coding gene in the ascomycetes parasitic fungus Isaria japonica contains a group I intron with a length of 379 nucleotides. The identification of the DNA sequence as a group I intron is based on its sequence homology to other fungal group I introns. Its group I intron contained the highly conserved sequence elements P, Q, R, and S found in other group I introns. Surprisingly, the intron sequence of I. japonica is more similar to that of Ustilago maydis than to the one found in Sclerotinia sclerotiorum. This is in contrast to the sequence identity found on the neighboring rDNA. This is an interesting finding and suggests a horizontal transfer of group I intron sequences.
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