ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

  1. 010 学術雑誌論文
  2. 01 研究員発表論文
  3. 粟田, ひろ子 / AWATA, Hiroko

Peculiar behavior of distinct chromosomal DNA elements during and after development in the dicyemid mesozoan Dicyema japonicum

https://ir.soken.ac.jp/records/3626
https://ir.soken.ac.jp/records/3626
57480a46-fc3c-4524-bba6-35c9b4967dd5
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-06-25
タイトル
タイトル Peculiar behavior of distinct chromosomal DNA elements during and after development in the dicyemid mesozoan Dicyema japonicum
タイトル
タイトル Peculiar behavior of distinct chromosomal DNA elements during and after development in the dicyemid mesozoan Dicyema japonicum
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 AWATA, Hiroko

× AWATA, Hiroko

AWATA, Hiroko

Search repository
NOTO, Tomoko

× NOTO, Tomoko

NOTO, Tomoko

Search repository
ENDOH, Hiroshi

× ENDOH, Hiroshi

ENDOH, Hiroshi

Search repository
著者別名 粟田, ひろ子

× 粟田, ひろ子

粟田, ひろ子

Search repository
抄録
内容記述タイプ Abstract
内容記述 The dicyemid mesozoans are obligate parasites that inhabit the cephalopod renal appendage. Dicyemids have a simple body, consisting of approximately 30 cells: one long cylindrical axial cell contains intracellular stem cells (called axoblast), from which embryos are derived, and is surrounded by some 30 peripheral somatic cells. Somatic cells divide at most eight times in their life span, and never divide after differentiation. During early somatic cell development, numerous unique DNA sequences are first amplified and then eliminated, in the form of extrachromosomal circular DNA, leading to genome reduction. In this study we demonstrate that the remaining sequences, single-copy genes and repetitive sequences, have very different fates. Single-copy genes, such as β-tubulin, are initially amplified, presumably via endoreduplication, but subsequently decrease in copy number through development, suggesting that the whole genome is initially amplified and then the amplified DNAs are simply diluted in successive cell divisions, with little DNA replication. In contrast, repetitive sequences are maintained even in terminally differentiated somatic cell nuclei. Considering the increasing intensity of in-situ hybridization, incorporation of BrdU, and a general correlation between nuclear content and cell size, those repetitive sequences must be selectively endoreplicated in the peripheral cell nucleus, concomitant with the increase of cell size. The biological significance of this mechanism is discussed as a unique dicyemid adaptation to parasitism.
書誌情報 Chromosome Research
en : Chromosome Research

巻 14, 号 8, p. 817-830, 発行日 2006-12
出版者
出版者 SpringerLink
ISSN
収録物識別子タイプ ISSN
収録物識別子 09673849
PubMed番号
識別子タイプ PMID
関連識別子 17139531
DOI
識別子タイプ DOI
関連識別子 http://doi.org/10.1007/s10577-006-1084-z
関連名称 10.1007/s10577-006-1084-z
権利
権利情報 SpringerLink(The original publication is available at www.springerlink.com)
戻る
0
views
See details
Views

Versions

Ver.1 2023-06-20 14:32:06.388681
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR 2.0
  • OAI-PMH JPCOAR 1.0
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3