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A conserved sequence in internal transcribed spacer 1 of plant nuclear rRNA genes

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Abstract

A highly conserved sequence was found in rRNA gene internal transcribed spacer 1 (ITS1) among flowering plant species. The sequence, GGCRY-(4 to 7 n)-GYGYCAAGGAA (where Y=C or T; R=G or A) is located in the central region of ITS1, and is present in published sequences from a wide range of flowering plants. The rest of ITS1 is highly variable in sequence. Therefore, the conserved motif within ITS1 may have a key function in the processing of rRNA gene transcripts. Furthermore, identification of such a conserved motif will help facilitate alignment of sequences for phylogenetic analysis.

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Authors and Affiliations

  1. Department of Plant Pathology, University of Kentucky, S-305 Agricultural Science Bldg.-N, 40546-0091, Lexington, KY, USA

    Jih-Shiou Liu & Christopher L. Schardl

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  1. Jih-Shiou Liu
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  2. Christopher L. Schardl
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Liu, JS., Schardl, C.L. A conserved sequence in internal transcribed spacer 1 of plant nuclear rRNA genes. Plant Mol Biol 26, 775–778 (1994). https://doi.org/10.1007/BF00013763

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  • DOI: https://doi.org/10.1007/BF00013763

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