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Ploidy distribution and DNA content variations of Lonicera caerulea (Caprifoliaceae) in Japan

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タイトル: Ploidy distribution and DNA content variations of Lonicera caerulea (Caprifoliaceae) in Japan
著者: Miyashita, Tomomi 著作を一覧する
Araki, Hajime 著作を一覧する
Hoshino, Yoichiro 著作を一覧する
キーワード: chromosome number
DNA ploidy level
flow cytometry
genome size variation
geographical distribution
Lonicera caerulea
発行日: 2011年
出版者: Springer
誌名: Journal of Plant Research
巻: 124
号: 1
開始ページ: 1
終了ページ: 9
出版社 DOI: 10.1007/s10265-010-0341-6
抄録: Ploidy level and geographical distribution were investigated in Japanese Lonicera caerulea L. Flow cytometric analysis revealed the presence of DNA diploid and DNA tetraploid plants in Japan. Chromosome observation confirmed that diploid and tetraploid plants showed 2n = 2x = 18 and 2n = 4x = 36, respectively. The DNA diploid populations were found only in lowland mires, Betsukai, Bekanbeushi, Kushiro and Kiritappu located in eastern Hokkaido. On the other hand, DNA tetraploid populations were distributed in a wide area of Hokkaido, and mainland of Japan. The habitats of DNA tetraploid plants were lowland to alpine region. The DNA content measurement with flow cytometry revealed significant differences in the relative DNA contents among DNA tetraploid populations. The relative DNA content within DNA tetraploid populations varied 1.157-fold at maximum, and might correlate with altitude indicating that DNA contents were smaller as altitude increases. The wide area of distribution in various environments of DNA tetraploid plants suggested the adaptability of the tetraploid plants. Although diploid and tetraploid populations were found, no triploid was detected, indicating crossing difficulty between diploid and tetraploid as confirmed by crossing experiment.
Rights: The original publication is available at
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 星野 洋一郎


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