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タイトル
和文:MyrSINEs: A novel SINE family in the anteater genomes 
英文:MyrSINEs: a novel SINE family in the anteater genomes 
著者
和文: 西原 秀典, 久野 周一, 二階堂 雅人, 岡田 典弘.  
英文: Hidenori Nishihara, Shuichi Kuno, Masato Nikaido, Norihiro Okada.  
言語 English 
掲載誌/書名
和文:Gene 
英文:Gene 
巻, 号, ページ Vol. 400    No. 1-2    pp. 98-103
出版年月 2007年10月 
出版者
和文: 
英文:Elsevier 
会議名称
和文: 
英文: 
開催地
和文: 
英文: 
公式リンク <Go to ISI>://000249539600012
 
DOI https://doi.org/10.1016/j.gene.2007.06.003
アブストラクト Recent rapid generation of genomic sequence data has allowed many researchers to perform comparative analyses in various mammalian species. However, characterization of transposable elements, such as short interspersed repetitive elements (SINEs), has not been reported for several mammalian groups. Because SINEs occupy a large portion of the mammalian genome, they are believed to have contributed to the constitution and diversification of the host genomes during evolution. In the present study, we characterized a novel SINE family in the anteater genomes and designated it the MyrSINE family. Typical SINEs consist of a tRNA-related, a tRNA-unrelated and an AT-rich (or poly-A) region. MyrSINEs have only tRNA-related and poly-A regions; they are included in a group called t-SINE. The tRNA-related regions of the MyrSINEs were found to be derived from tRNA(Gly). We demonstrate that the MyrSINE family can be classified into three subfamilies. Two of the MyrSINE subfamilies are distributed in the genomes of both giant anteater and tamandua, while the other is present only in the giant anteater. We discuss the evolutionary history of MyrSINEs and their relationship to the evolution of anteaters. We also speculate that the simple structure of t-SINEs may be a potential evolutionary source for the generation of the typical SINE structure.

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