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タイトル: | Two types of alpha satellite DNA in distinct chromosomal locations in Azara's owl monkey. |
著者: | Prakhongcheep, Ornjira Hirai, Yuriko Hara, Toru Srikulnath, Kornsorn Hirai, Hirohisa Koga, Akihiko |
著者名の別形: | 古賀, 章彦 |
キーワード: | centromere centromeric constriction satellite DNA replacement tandem repeats |
発行日: | Jun-2013 |
出版者: | Oxford University Press |
誌名: | DNA research : an international journal for rapid publication of reports on genes and genomes |
巻: | 20 |
号: | 3 |
開始ページ: | 235 |
終了ページ: | 240 |
抄録: | Alpha satellite DNA is a repetitive sequence known to be a major DNA component of centromeres in primates (order Primates). New World monkeys form one major taxon (parvorder Platyrrhini) of primates, and their alpha satellite DNA is known to comprise repeat units of around 340 bp. In one species (Azara's owl monkey Aotus azarae) of this taxon, we identified two types of alpha satellite DNA consisting of 185- and 344-bp repeat units that we designated as OwlAlp1 and OwlAlp2, respectively. OwlAlp2 exhibits similarity throughout its entire sequence to the alpha satellite DNA of other New World monkeys. The chromosomal locations of the two types of sequence are markedly distinct: OwlAlp1 was observed at the centromeric constrictions, whereas OwlAlp2 was found in the pericentric regions. From these results, we inferred that OwlAlp1 was derived from OwlAlp2 and rapidly replaced OwlAlp2 as the principal alpha satellite DNA on a short time scale at the speciation level. A less likely alternative explanation is also discussed. |
著作権等: | © The Author 2013. Published by Oxford University Press on behalf of Kazusa DNA Research Institute. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc/3.0/), which permits non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com. |
URI: | http://hdl.handle.net/2433/179278 |
DOI(出版社版): | 10.1093/dnares/dst004 |
PubMed ID: | 23477842 |
出現コレクション: | 学術雑誌掲載論文等 |
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