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  1. 010 学術雑誌論文
  2. 寺井, 洋平 / TERAI, Yohei
  1. 000 著者一覧
  2. 寺井, 洋平 / TERAI, Yohei

The evolution of genes for pigmentation in African cichlid fishes

https://ir.soken.ac.jp/records/4678
https://ir.soken.ac.jp/records/4678
2703ed0a-66b5-489b-9db3-2887086ca3d7
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 The evolution of genes for pigmentation in African cichlid fishes
タイトル
タイトル The evolution of genes for pigmentation in African cichlid fishes
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 SUGIE, Ayano

× SUGIE, Ayano

SUGIE, Ayano

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TERAI, Yohey

× TERAI, Yohey

TERAI, Yohey

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OTA, Ryoko

× OTA, Ryoko

OTA, Ryoko

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OKADA, Norihiro

× OKADA, Norihiro

OKADA, Norihiro

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著者別名 寺井, 洋平

× 寺井, 洋平

寺井, 洋平

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抄録
内容記述タイプ Abstract
内容記述 The cichlid fishes in the East African Great Lakes exhibit a great diversity of color patterns, presumably as adaptations to species-specific habitats and/or due to the action of sexual selection on color for species discrimination or female mate choice. To elucidate the mechanisms underlying such pigment pattern diversity, we cloned the cichlid homologs of tyrosinase, endothelin receptor b1, mitf, and Aim1 that previously had been cloned and characterized from pigmentation mutants of zebrafish and medaka fish. Gene sequence analysis among five cichlid species from the Great Lakes shows that the evolutionary rate of amino acid replacement in mitf is the highest of these four genes. We then compared the mitf amino acid replacement rates between species from the lacustrine and tilapiine/steatocranus lineages, and between Lake Malawi- and Victoria-haplochromine cichlids and Lake Tanganyika Lamprologini. We show that the evolutionary rate within the lacustrine lineage is twice that of the tilapiine/steatocranus lineage, but that rates for the Malawi–Victoria haplochromine and Lamprologini lineages are almost the same. These results suggest that the accelerated evolution of mitf might have occurred concomitantly with pigment pattern diversification in Great Lakes species, but not necessarily correlated with species under intense sexual selection on male mating color via female mate choice. Finally, we characterized a novel alternatively spliced variant of cichlid mitf that is similar to a mammalian mitf splice variant generated using alternate splice sites. We suggest that this new variant in cichlids, like that in mammals, encodes an MITF transcriptional factor having higher relative DNA binding affinity. These data provide a novel example of functional convergence in which a particular splice variant is independently generated via alternative splicing of a specific gene in different lineages.
書誌情報 Gene
en : Gene

巻 343, 号 2, p. 337-346, 発行日 2004-12
出版者
出版者 Elsevier
ISSN
収録物識別子タイプ ISSN
収録物識別子 0378-1119
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.gene.2004.09.019
関連名称 10.1016/j.gene.2004.09.019
権利
権利情報 © 2004 Elsevier B.V.
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