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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

Population structure of two closely related pelagic cichlids in Lake Victoria, Haplochromis pyrrhocephalus and H. laparogramma

https://ir.soken.ac.jp/records/4697
https://ir.soken.ac.jp/records/4697
50e11db7-b514-4fd3-b6fb-54258def2613
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-06-25
タイトル
タイトル Population structure of two closely related pelagic cichlids in Lake Victoria, Haplochromis pyrrhocephalus and H. laparogramma
タイトル
タイトル Population structure of two closely related pelagic cichlids in Lake Victoria, Haplochromis pyrrhocephalus and H. laparogramma
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 MAEDA, Kaoru

× MAEDA, Kaoru

MAEDA, Kaoru

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TERAI, Yohey

× TERAI, Yohey

TERAI, Yohey

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et, al.

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et, al.

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抄録
内容記述タイプ Abstract
内容記述 Cichlid fishes in Lake Victoria show spectacular diversification that is thought to be recent. Therefore, by investigating those fishes, we may be able to elucidate recently completed or ongoing speciation processes. We studied the population structures of two closely related pelagic cichlid species, Haplochromis pyrrhocephalus and H. laparogramma, using a mitochondrial DNA locus and 12 nuclear microsatellite loci as putative neutral markers. Ten and two populations of H. pyrrhocephalus and H. laparogramma, respectively, were sampled from the southern part of Lake Victoria. We grouped those 12 populations into four mutually differentiated regional populations, one of which consisted of the two H. laparogramma populations. The levels of differentiation were substantial at the mitochondrial locus (FST = 0.03–0.54), but very low at microsatellite loci (RST = 0.008–0.116). The data from both types of loci indicated that the regional population of H. laparogramma was first separated from those of H. pyrrhocephalus if we set aside one erratic population of H. pyrrhocephalus. The data also suggested recent population expansions of the two species, the time scales for which were estimated to be on the order of 104–105 years. These data suggested that dynamic speciation processes accompanied occasional spawning of new species and population size changes in this lake.
書誌情報 Gene
en : Gene

巻 441, 号 1-2, p. 67-73, 発行日 2009-07
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.2008.11.008
関連名称 10.1016/j.gene.2008.11.008
権利
権利情報 © 2008 Elsevier B.V.
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