2021 Fiscal Year Final Research Report
Constraints and evoluvability in the morphological evolution of vertebrate musculoskeletal system.
| Project Area | Evolutionary theory for constrained and directional diversities |
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| Project/Area Number |
17H06385
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Biological Sciences
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
Kuratani Shigeru 国立研究開発法人理化学研究所, 生命機能科学研究センター, チームリーダー (00178089)
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| Co-Investigator(Kenkyū-buntansha) |
平沢 達矢 東京大学, 大学院理学系研究科(理学部), 准教授 (60585793)
PASCUAL JUAN 国立研究開発法人理化学研究所, 開拓研究本部, 研究員 (30594098)
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| Project Period (FY) |
2017-06-30 – 2022-03-31
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| Keywords | 脊椎動物 / 筋骨格系 / 発生 / 化石 / 比較形態学 |
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| Outline of Final Research Achievements |
Morphological evolution can be viewed as the conservation and fluctuation in the connection of structural elements. Basic morphological plan of the cranium, including the sensory capsules, and the connectivity relationships found in the musculoskeletal system in vertebrates were comprehensively studied as developmental changes in patterns and mechanisms, as well as palaeontological transitions. In particular, it was suggested that the emergence of new elements and recombination of connections are involved in the creation of new patterns, which are called evolutionary novelty. As a result, 17 papers (including two in Nature) were published on the evolution of the tongue and external eye muscles and the inner ear. In addition, we collaborated with the Koyabu, Higashiyama and Irie groups and published six papers.
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| Free Research Field |
進化発生生物学
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| Academic Significance and Societal Importance of the Research Achievements |
生物の進化や多様性についての一般的好奇心は増しているが、進化現象やメカニズムについての理解はまだ十分に向上しているとは言い難い。本研究課題は形態進化という最も顕著でわかりやすい現象を対象とし、それを可能な変化の過程として描き出すことを目的としたものであり、究極的には進化の現実的なパターンを深く理解する方途となる。進化とはただ単に形が変わることではなく、どのような進化が可能で、何が不可能なのかについての洞察を得ることが重要なのであり、それを通じて初めて人間の持つ自然観は成熟し、人間自身の体の成り立ちについて、科学的な根拠を通して理解にいたるものだと思う。
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