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Sequence diversity and copy number variation of Mutator-like transposases in wheat Genet. Mol. Biol.
Asakura,Nobuaki; Yoshida,Shinya; Mori,Naoki; Ohtsuka,Ichiro; Nakamura,Chiharu.
Partial transposase-coding sequences of Mutator-like elements (MULEs) were isolated from a wild einkorn wheat, Triticum urartu, by degenerate PCR. The isolated sequences were classified into a MuDR or Class I clade and divided into two distinct subclasses (subclass I and subclass II). The average pair-wise identity between members of both subclasses was 58.8% at the nucleotide sequence level. Sequence diversity of subclass I was larger than that of subclass II. DNA gel blot analysis showed that subclass I was present as low copy number elements in the genomes of all Triticum and Aegilops accessions surveyed, while subclass II was present as high copy number elements. These two subclasses seemed uncapable of recognizing each other for transposition. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mutator-like transposase; Sequence diversity; Copy number variation; Triticum; Aegilops.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300022
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