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タイトル: | Tandem repeat sequences evolutionarily related to SVA-type retrotransposons are expanded in the centromere region of the western hoolock gibbon, a small ape. |
著者: | Hara, Toru Hirai, Yuriko Jahan, Israt Hirai, Hirohisa ![]() Koga, Akihiko ![]() |
著者名の別形: | 古賀, 章彦 |
キーワード: | Transposon SVA element Centromere Tandem repeats Hominoids |
発行日: | Dec-2012 |
出版者: | Nature Publishing Group |
誌名: | Journal of human genetics |
巻: | 57 |
号: | 12 |
開始ページ: | 760 |
終了ページ: | 765 |
抄録: | Hoolock hoolock (the western hoolock gibbon) is a species of the family Hylobatidae (small apes), which constitutes the superfamily Hominoidea (hominoids) together with Hominidae (great apes and human). Here, we report that centromeres or their vicinities in this gibbon species contain tandem repeat sequences that consist of 35-50-bp repeat units, and exhibit a sequence similarity with the variable number of tandem repeat (VNTR) region of the SVA, LAVA and PVA transposons. SVA is a composite retrotransposon thought to have been formed by fusion of three solo elements in the common ancestor of hominoids. LAVA and PVA are recently identified retrotransposons that have the same basic structure as SVA. Thus, the large-scale tandem repeats in the centromere region may have been derived from one or more of SVA-type transposons, including the three mentioned above and other yet unknown elements, or the repeat sequences could have served as a source for such elements. Amplification of VNTR-related sequences in another gibbon species, Hoolock leuconedys (eastern hoolock gibbon), has recently been reported, but it is yet to be examined whether the large-scale tandem repeats observed in the two species originated from a single event that occurred in their common ancestor. The repeat sequences in the western hoolock gibbon are mostly 40 kb or more in length, are present in 28 of the 38 chromosomes of the somatic cells, and are homozygous for chromosomal presence/absence. |
著作権等: | © 2013 The Japan Society of Human Genetics この論文は著者最終稿です。内容が印刷版と異なることがありますので、引用の際には出版社版をご確認ご利用ください。This is the Accepted Author Manuscript. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/177187 |
DOI(出版社版): | 10.1038/jhg.2012.107 |
PubMed ID: | 22931862 |
出現コレクション: | 学術雑誌掲載論文等 |
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