Geographical Distribution of Sexual and Apogamous Types of Dryopteris chinensis (Dryopteridaceae) in Japan

• HORI KIYOTAKA

  Makino Herbarium, Tokyo Metropolitan University

• MATSUMOTO MEGUMI

  Makino Herbarium, Tokyo Metropolitan University

• EBIHARA ATSUSHI

  Department of Botany, National Museum of Nature and Science

• NAKATO NARUMI

• MURAKAMI NORIAKI

  Makino Herbarium, Tokyo Metropolitan University

抄録

Only triploid and tetraploid apogamous cytotypes have previously been reported for the fern Dryopteris chinensis (Dryopteridaceae). In this paper we report the discovery of a diploid sexual cytotype of D. chinensis. The geographical distribution of the sexual and apogamous types of the species in Japan and adjacent region was determined by counting the number of spores per sporangium in a large number of herbarium specimens from MAK and TNS. Apogamous plants were found to be the predominant type in Japan; the sexual type was restricted to Miyazaki, Oita, and Kumamoto prefectures in Kyushu, and Kochi Prefecture in Shikoku, Japan.

収録刊行物

• Acta Phytotaxonomica et Geobotanica

  Acta Phytotaxonomica et Geobotanica 66 (1), 35-45, 2015

  日本植物分類学会

キーワード

• apogamy
• chromosome number
• Dryopteridaceae
• Dryopteris chinensis
• reproductive mode
• sexual cytotype

詳細情報

• CRID: 1390282680246173568
• NII論文ID: 110009922434
• DOI: 10.18942/apg.kj00009868504
• ISSN: 21897042
• ISSN: 13467565
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可