Studies on sex-chromosome turnover and evolution of secondary sexual characteristics in the family Adrianichthyidae
Project/Area Number |
26291093
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Ecology/Environment
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Research Institution | University of the Ryukyus |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
北野 潤 国立遺伝学研究所, 集団遺伝研究系, 教授 (80346105)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2015: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2014: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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Keywords | 進化 / 生態 / 性淘汰 / スラウェシ / 生態学 / 種分化 / メダカ |
Outline of Final Research Achievements |
In this study, we tested the possibility that sex-chromosome turnover led to rapid evolution of secondary sexual characteristics in medaka fishes in Sulawesi Island. Analyses of population structures and sex-determination systems using sex-linked markers revealed that the Malili medaka species complex diverged into six populations while being mixed with each other by a certain degree of gene flows, and that sex-determination systems are polytypic with sex-chromosome turnovers among the species/populations. QTL mapping using an inter-specific cross line revealed that male-specific fin reddishness of the Muna medaka species complex is regulated by an autosomal gene, but that multiple loci may be involved in male-specific body blueness.
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Report
(5 results)
Research Products
(41 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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[Journal Article] New localities of the Oryzias woworae species group (Adrianichthyidae) in Sulawesi Tenggara2016
Author(s)
Yamahira K, Mochida K, Fujimoto S, Mokodongan DF, Montenegro J, Kaito T, Ishikawa A, Kitano J, Sue T, Mulis, Hadiaty RK, Mandagi IF, Masengi AKW
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Journal Title
Indonesian Journal of Ichthyology
Volume: 16
Pages: 125-131
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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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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[Presentation] Evolution of body coloration in two sympatric freshwater fishes: a test of the sensory-driven hypothesis2016
Author(s)
Montenegro J, Mochida K, Sugiuchi S, Matsui K, Fujimoto S, Mokodongan DF, Ishikawa A, Kitano J, Mandagi IF, Masengi AKW, Hadiaty RK, Yamahira K
Organizer
21st Evolutionary Biology Meeting
Place of Presentation
Marseilles, France
Year and Date
2016-09-23
Related Report
Int'l Joint Research
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