Parallel evolution of pelvic-fin brooding as a complex adaptive trait in the family Adrianichthyidae
Project/Area Number |
16F16392
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Research Category |
Grant-in-Aid for JSPS Fellows
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Allocation Type | Single-year Grants |
Section | 外国 |
Research Field |
Ecology/Environment
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Research Institution | University of the Ryukyus |
Principal Investigator |
山平 寿智 (2016-2017) 琉球大学, 熱帯生物圏研究センター, 教授 (20322589)
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Co-Investigator(Kenkyū-buntansha) |
Montenegro Javier 琉球大学, 熱帯生物圏研究センター, ポスドク研究員 (70835347)
MONTENEGRO GONZA JAVIER 琉球大学, 熱帯生物圏研究センター, 外国人特別研究員
MONTENEGRO GONZALEZ JAVIER 琉球大学, 熱帯生物圏研究センター, 外国人特別研究員
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Project Period (FY) |
2016-11-07 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2018: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2017: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2016: ¥1,200,000 (Direct Cost: ¥1,200,000)
|
Keywords | Pelvic-fin Brooding / medaka / Sulawesi / QTL / 進化 / 生態 |
Outline of Annual Research Achievements |
The research objective of this project was satisfactorily achieved; both the phenotypic characterization and the identification of the genomic regions associated with pelvic-fin brooding in Sulawesi medaka were successfully achieved. Surprisingly, the results of this projects indicated that few loci might control pelvic fin brooding in Sulawesi medaka suggesting that this complex adaptation could evolve rapidly, and with few or no intermediary stages.
Clear differences were found between the morphology and reproductive cycle of both species. O. eversi presented longer pelvic fins, a deeper concavity, and longer periods for “carrying-eggs” and “gonads-maturation” than O. dopingdopingensis; and as expected F2 hybrid individuals showed intermediary values in all of the evaluated variables.
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Research Progress Status |
平成30年度が最終年度であるため、記入しない。
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Strategy for Future Research Activity |
平成30年度が最終年度であるため、記入しない。
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Report
(3 results)
Research Products
(17 results)
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[Journal Article] Phylogenomics reveals habitat-associated body shape divergence in Oryzias woworae species group (Teleostei: Adrianichthyidae)2018
Author(s)
Mokodongan DF, Montenegro J, Mochida K, Fujimoto S, Ishikawa A, Kakioka R, Yong L, Mulis, Hadiaty RK, Mandagi IF, Masengi WA, Wachi N, Hashiguchi Y, Kitano J, Yamahira K
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Journal Title
Molecular Phylogenetics and Evolution
Volume: 118
Pages: 194-203
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Phylogeography of the eight-barbel loach Lefua nikkonis (Cypriniformes: Nemacheilidae): how important were straits in northern Japan as biogeographical barriers?2018
Author(s)
Ooyagi A, Mokodongan DF, Montenegro J, Mandagi IF, Koizumi N, Machida Y, Inomata N, Shdedko SV, Hutama AA, Hadiaty RK, Yamahira K
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Journal Title
Ichthyological Research
Volume: 65
Issue: 1
Pages: 115-126
DOI
NAID
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Convergent evolution of body coloration in genus Oryzias and Nomorhamphus in Sulawesi-tenggara2017
Author(s)
Montenegro J, Mochida K, Sugiuchi S, Matsui K, Fujimoto S, Mokodongan DF, Ishikawa A, Kitano J, Yong L, Mandagi IF, Masengi KWA, Hadiaty RK, Yamahira K
Organizer
Congress of the European Society for Evolutionary Biology
Related Report
Int'l Joint Research
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