| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2014-06-23 |
| タイトル |
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タイトル |
Using SINEs to Probe Ancient Explosive Speciation: “Hidden” Radiation of African Cichlids? |
| タイトル |
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タイトル |
Using SINEs to Probe Ancient Explosive Speciation: “Hidden” Radiation of African Cichlids? |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
TERAI, Yohey
TAKAHASHI, Kazuhiko
NISHIDA, Mutsumi
SATO, Tetsu
OKADA, Norihiro
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| 著者別名 |
寺井, 洋平
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| 抄録 |
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内容記述タイプ |
Abstract |
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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
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| 出版者 |
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出版者 |
Oxford University Press |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0737-4038 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1093/molbev/msg104 |
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関連名称 |
10.1093/molbev/msg104 |
| 権利 |
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権利情報 |
© 2003 by the Society for Molecular Biology and Evolution |
