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  1. 040 会議発表論文
  2. 01 教員発表論文

Using SINEs to Probe Ancient Explosive Speciation: “Hidden” Radiation of African Cichlids?

https://ir.soken.ac.jp/records/4676
https://ir.soken.ac.jp/records/4676
83ad9ba1-7cb9-44d3-bc27-655e88a3f1c0
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-06-23
タイトル
タイトル Using SINEs to Probe Ancient Explosive Speciation: “Hidden” Radiation of African Cichlids?
タイトル
タイトル Using SINEs to Probe Ancient Explosive Speciation: “Hidden” Radiation of African Cichlids?
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 TERAI, Yohey

× TERAI, Yohey

TERAI, Yohey

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TAKAHASHI, Kazuhiko

× TAKAHASHI, Kazuhiko

TAKAHASHI, Kazuhiko

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NISHIDA, Mutsumi

× NISHIDA, Mutsumi

NISHIDA, Mutsumi

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SATO, Tetsu

× SATO, Tetsu

SATO, Tetsu

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OKADA, Norihiro

× OKADA, Norihiro

OKADA, Norihiro

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著者別名 寺井, 洋平

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寺井, 洋平

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抄録
内容記述タイプ Abstract
内容記述 Cichlid fishes of the east African Great Lakes represent a paradigm of adaptive radiation. We conducted a phylogenetic analysis of cichlids including pan-African and west African species by using insertion patterns of short interspersed elements (SINEs) at orthologous loci. The monophyly of the east African cichlids was consistently supported by seven independent insertions of SINE sequences that are uniquely shared by these species. In addition, data from four other loci indicated that the genera Tilapia (pan-African) and Steatocranus (west African) are the closest relatives to east African cichlids. However, relationships among Tilapia, Steatocranus, and the east African clade were ambiguous because of incongruencies among topologies suggested by insertion patterns of SINEs at six other loci. One plausible explanation for this phenomenon is incomplete lineage sorting of alleles containing or missing a SINE insertion at these loci during ancestral speciation. Such incomplete sorting may have taken place earlier than 14 MYA, followed by random and stochastic fixation of the alleles in subsequent lineages. These observations prompted us to consider the possibility that cichlid speciation occurred at an accelerated rate during this period when the African Great Lakes did not exist. The SINE method could be useful for detecting ancient exclusive speciation events that tend to remain hidden during conventional sequence analyses because of accumulated point mutations.
書誌情報 Molecular Biology and Evolution
en : Molecular Biology and Evolution

巻 20, 号 6, p. 924-930, 発行日 2003
出版者
出版者 Oxford University Press
ISSN
収録物識別子タイプ ISSN
収録物識別子 0737-4038
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1093/molbev/msg104
関連名称 10.1093/molbev/msg104
権利
権利情報 © 2003 by the Society for Molecular Biology and Evolution
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