| Project/Area Number |
17H06115
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Japanese linguistics
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
Karimata Shigehisa 琉球大学, 戦略的研究プロジェクトセンター, 産学官連携研究員 (50224712)
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| Co-Investigator(Kenkyū-buntansha) |
木部 暢子 大学共同利用機関法人人間文化研究機構国立国語研究所, 言語変異研究領域, 特任教授 (30192016)
金田 章宏 千葉大学, 大学院国際学術研究院, 名誉教授 (70214476)
下地 理則 九州大学, 人文科学研究院, 准教授 (80570621)
白田 理人 広島大学, 人間社会科学研究科(教), 准教授 (60773306)
津村 宏臣 同志社大学, 文化情報学部, 准教授 (40376934)
木村 亮介 琉球大学, 医学(系)研究科(研究院), 教授 (00453712)
岡崎 威生 琉球大学, 工学部, 教授 (90213925)
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| Project Period (FY) |
2017-05-31 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥176,280,000 (Direct Cost: ¥135,600,000、Indirect Cost: ¥40,680,000)
Fiscal Year 2021: ¥20,410,000 (Direct Cost: ¥15,700,000、Indirect Cost: ¥4,710,000)
Fiscal Year 2020: ¥26,260,000 (Direct Cost: ¥20,200,000、Indirect Cost: ¥6,060,000)
Fiscal Year 2019: ¥36,010,000 (Direct Cost: ¥27,700,000、Indirect Cost: ¥8,310,000)
Fiscal Year 2018: ¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000)
Fiscal Year 2017: ¥45,370,000 (Direct Cost: ¥34,900,000、Indirect Cost: ¥10,470,000)
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| Keywords | 琉球諸語 / 九州方言 / 比較歴史言語学 / 集団遺伝学 / 言語系統樹 / 系統樹研究 / 日琉祖語 / 音素素性 / 九州琉球祖語 / 琉球語 / 危機言語 / 日本語史 / 琉球祖語 / 系統研究 / 系統樹 |
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| Outline of Final Research Achievements |
The aim of the project has been to uncover the phylogenetic relationship between the Ryukyuan languages and Kyushu dialects by using methods applied in population genetics. The methods include transforming various linguistic information of these languages into numerical sequences, plotting the information as genetic network figures and ADMIXTURE and combining them with geolinguistic maps. The results show that of the three Southern Ryukyuan languages, Miyako, Yaeyama and Yonaguni, the former two constitute a subgroup against Yonaguni, against the general consensus that the latter two constitute a subgroup. Another finding is about grammatical and lexical differences (tense-aspect systems and vocabularies of rice cultivation) between Northern and the Southern Ryukyuan languages in a diachronic perspective. Such differences may support our hypothesis that there were two waves of massive migration from Kyushu to the area where Northern Ryukyuan was spoken.
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| Academic Significance and Societal Importance of the Research Achievements |
比較言語学も言語地理学も少数の単語を使って言語史を解明する。そこには単語の選択に恣意性が働く懸念が付きまとう。比較言語学は2地点間の関係を明らかにするだけである。集団遺伝学は対象地点数にも使用する単語数にも制限が無い。系統ネットワーク図は分岐だけでなく地点間の距離や言語接触の様も可視化できる。GISデータを組み込めば系統ネットワーク図等から言語地図を描ける。集団遺伝学的研究の確立は琉球諸語と日本語方言の研究に大きな革新をもたらす。
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| Assessment Rating |
Verification Result (Rating)
B
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Assessment Rating |
Result (Rating)
A: Progress in the research is steadily towards the initial goal. Expected research results are expected.
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