A transposon-like sequence with short terminal inverted repeats in the nuclear genome of Chlamydomonas reinhardtii |
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Authors: | Anil Day |
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Institution: | (1) School of Biological Sciences, Manchester University, Oxford Road, 3.614, Stopford Building Manchester, M13 9PT, UK |
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Abstract: | A 1.2 kb DNA sequence, flanked by a potential seven base target-site duplication, was found inserted into a TOC1 transposable element from Chlamydomonas reinhardtii. The insertion sequence, named TOC2, is a member of a family of repeated DNA sequences that is present in all the C. reinhardtii strains tested. It resembles class II transposable elements: it possesses short 14 bp imperfect terminal repeats that begin AGGAGGGT, and sub-terminal direct repeats located within 250 bp of the termini. No large open reading frames were found. The terminal bases and length of target-site duplication are important in classifying transposable elements. On this basis TOC2 does not fall readily into existing families of class II transposable elements found in plants. |
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Keywords: | Chlamydomonas transposon-like sequence nuclear genome |
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