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流域の連続性と分断がホトケドジョウLefua echigonia の遺伝的構造・多様性に与える影響分析 －ミトコンドリアDNA D-loopの解析－
https://doi.org/10.24514/0002001435
https://doi.org/10.24514/000200143523989a13-bdff-4fab-b5e0-62e400e4d701
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TRNIREJ212_177-188.pdf (2.2 MB)
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(c) 国立研究開発法人 農業・食品産業技術総合研究機構
National Agriculture and Food Research Organization, Japan |
| Item type | 紀要論文 / Departmental Bulletin Paper_03(1) | |||||||||||||||||||||||||||||||||||||||||||||
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| 公開日 | 2025-11-14 | |||||||||||||||||||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||||||||||||||||||
| タイトル | 流域の連続性と分断がホトケドジョウLefua echigonia の遺伝的構造・多様性に与える影響分析 －ミトコンドリアDNA D-loopの解析－ | |||||||||||||||||||||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||||||||||||||||||
| タイトル | Mitochondrial DNA D-Loop Sequence-Based Analysis of the Influence of River Basin Connectivity and Fragmentation on the Genetic Structure and Diversity of the Japanese Eight-Barbel Loach Lefua echigonia | |||||||||||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||||||||||||||||||||||||
| 言語 | jpn | |||||||||||||||||||||||||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||||||||||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||||||||||||||||||||||||||||||||||
| ID登録 | ||||||||||||||||||||||||||||||||||||||||||||||
| ID登録 | 10.24514/0002001435 | |||||||||||||||||||||||||||||||||||||||||||||
| ID登録タイプ | JaLC | |||||||||||||||||||||||||||||||||||||||||||||
| 著者 |
西田, 一也
× 西田, 一也
× 小出水, 規行
× 竹村, 武士
× 渡部, 恵司
× 森, 淳
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| 抄録 | ||||||||||||||||||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||||||||||||||||||
| 内容記述 | This study aims to analyze the influence of basin connectivity and fragmentation on the genetic structure and diversity of the populations of the Japanese eight-barbel loach Lefua echigonia in the Tama River Basin, Tokyo, by analyzing their mitochondrial DNA D-loop sequences. A total of 266 specimens were collected from 8 habitats in tributaries and oxbows that were perhaps linked by the Tama River and from 6 habitats in streams that were located in hill-bottom valley (yatsu) and were perhaps fragmented because of the installation of drop structures and concrete lining for river improvement. Thirty haplotypes were detected in the 266 specimens. Every haplotype from the Tama River Basin was identified as an endemic haplotype because these haplotypes were classified into a clade of the South-Kanto group and almost every haplotype was closely related to known haplotypes from the Tama River Basin in this clade in the phylogenetic tree. Several coefficient of genetic differentiation (Fst) values between populations, including those for populations in the streams in the hill-bottom valley, were high, and several haplotype diversity (h) values of the populations in the streams in the hill-bottom valley were low. The Fst values between populations in tributaries and/or oxbows were low, and showed significantly positive correlation with the distances between populations along the water-course. The h values of the populations in the tributaries and/or oxbows were high. These findings suggest that 1) the populations in the streams in the hill-bottom valley were segmented and reduced because of the measures implemented for the river improvement, i.e., installation of drop structures and concrete lining, and this segmentation and reduction probably decreased genetic diversity; and 2) the populations in the tributaries and oxbows constituted a metapopulation structure, and the gene flow between populations probably preserved genetic diversity. | |||||||||||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||||||||||
| 書誌情報 |
ja : 農村工学研究所技報 en : Technical report of the National Institute for Rural Engineering 巻 212, p. 177-188, 発行日 2012-03-31 |
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| 出版者 | ||||||||||||||||||||||||||||||||||||||||||||||
| 出版者 | 独立行政法人 農業・食品産業技術総合研究機構 農村工学研究所 | |||||||||||||||||||||||||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||||||||||||||||||||||
| 出版者 | National Agriculture and Food Research Organization, National Institute for Rural Engineering | |||||||||||||||||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||||||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||||||||||||||||||||||||
| 収録物識別子 | 1882-3289 | |||||||||||||||||||||||||||||||||||||||||||||
