2012 Fiscal Year Final Research Report
Study on terrific adaptive radiation of Baikal sculpins by biodiversity of the breeding ecology, early life history and genes
| Project/Area Number |
21405013
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Evolutionary biology
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| Research Institution | Kochi University |
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Principal Investigator |
KINOSHITA Izumi 高知大学, 教育研究部総合科学系, 教授 (60225000)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Harumi (独)水産大学校, 水産学研究科, 教授 (80399659)
MUNEHARA Hiroyuki 北海道大学, 北方生物圏フィールド科学センター, 准教授 (80212249)
TAKAHASHI Hiroshi (独)水産大学校, 水産学研究科, 助教 (90399650)
GOTO Akira 北海道大学, 北方生物圏フィールド科学センター, 教授 (30111165)
YOKOYAMA Ryota 北海道大学, 北方生物圏フィールド科学センター, 学術研究員 (40532403)
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| Research Collaborator |
MABUCHI Kohji 東京大学, 大気海洋研究所, 助教 (50401295)
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| Project Period (FY) |
2009 – 2012
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| Keywords | バイカル湖 / カジカ類 / 適応放散 / 系統進化 / 遺伝的多様性 / シンポジウム |
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| Research Abstract |
Of 33 spp. from 12 gen., three fam. in the Baikal sculpins, 27 species were inferred by analysis of mtDNA and ncDNA sequence data, and each genus showsmonophyletic group and forms a phylogenetic tree of reliable relationship. Furthermore, the deep-water sculpins could be one of ancestors for group distributed around the Arctic Zone, and the process of their adptive radiation was clarified. Larvae of pelagic sculpins had been distributed in layer deeper 100 m offshore and at surface nearshore in Comephorus and Cottocomephorus, respectively. Two genus hardly showed vertical diel migration. Based on their results, sympsium: “Origin, adaptive radiation and speciation of sculpins in Lake Baikal” with 10 papers was convined in September.
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