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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/469750e11db7-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
× TERAI, Yohey
× 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 |
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| 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. | |||||||||||
