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タイトル: | Identification of management units in threatened populations of Arnica mallotopus Makino (Asteraceae) using novel EST-SSR markers |
著者: | Masuda, Kazutoshi Setoguchi, Hiroaki Nagasawa, Koki Fukumoto, Shigeru Ishihara, Masae Iwamoto Miura, Rei-ichi Mizusawa, Leiko Hiratsuka, Ken-ichi Sakaguchi, Shota |
著者名の別形: | 増田, 和俊 瀬戸口, 浩彰 長澤, 耕樹 石原, 正恵 阪口, 翔太 |
キーワード: | Arnica conservation genetics EST-SSR genetic diversity population decline |
発行日: | Jun-2021 |
出版者: | Genetics Society of Japan |
誌名: | Genes & Genetic Systems |
巻: | 96 |
号: | 3 |
開始ページ: | 159 |
終了ページ: | 164 |
抄録: | Arnica mallotopus is a perennial herb endemic to the snowy regions of Japan. At the southern edge of its distribution, in Kyoto Prefecture, overgrazing by sika deer and decreased snowfall have resulted in the rapid decline of A. mallotopus populations. Therefore, there is an urgent need for a conservation genetic analysis of the remaining local populations. In this study, we first developed 13 EST-SSR markers to evaluate genetic variation in A. mallotopus. The average number of alleles per locus was 5.33. Genetic analysis using these markers showed that the investigated samples were classified into two groups corresponding to landscape structure. One group isolated from a tributary of the Yura River showed a strong population bottleneck signal, likely resulting from founder effects and subsequent drifts. On the other hand, the genetic diversity of the second group in the main distribution along the Yura River was higher and less inbred. Overall, our assessment suggested recognizing the two genetic groups as management units in conservation programs for the threatened populations. |
著作権等: | © 2021 The Author(s). This is an open access article distributed under the terms of the Creative Commons BY 4.0 International (Attribution) License (https://creativecommons.org/licenses/by/4.0/legalcode), which permits the unrestricted distribution, reproduction and use of the article provided the original source and authors are credited. |
URI: | http://hdl.handle.net/2433/275962 |
DOI(出版社版): | 10.1266/ggs.21-00021 |
PubMed ID: | 34148896 |
出現コレクション: | 学術雑誌掲載論文等 |
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