Sagittaria siamaginashi (Alismataceae): A New Species from Thailand and Myanmar

Takashi Shiga; Syou Kato; Katsuyoshi Suzuki; Kazumasa Tsubota; Siriporn Zungsontiporn; Tanchanok Jongrukthai; Ansaya Promma; Akekarat Tanutong; Mu Mu Aung; Norio Tanaka; Qixiang Lu; Kazuyuki Itoh

doi:10.18942/apg.202022

Sagittaria siamaginashi (Alismataceae): A New Species from Thailand and Myanmar

Takashi Shiga, Syou Kato, Katsuyoshi Suzuki, Kazumasa Tsubota, Siriporn Zungsontiporn, Tanchanok Jongrukthai, Ansaya Promma, Akekarat Tanutong, Mu Mu Aung, Norio Tanaka, Qixiang Lu, Kazuyuki Itoh

著者情報

Takashi Shiga
Faculty of Education, Niigata University [日本]
Graduate School of Science and Technology, Niigata University [日本]
Syou Kato
Faculty of Education, Niigata University [日本]
Katsuyoshi Suzuki
Graduate School of Bioscience and Biotechnology, Fukui Prefectural University [日本]
Kazumasa Tsubota
Graduate School of Science and Technology, Niigata University [日本]
Siriporn Zungsontiporn
Plant Protection Research and Development Office, Department of Agriculture [タイ]
Tanchanok Jongrukthai
Plant Protection Research and Development Office, Department of Agriculture [タイ]
Ansaya Promma
Plant Protection Research and Development Office, Department of Agriculture [タイ]
Akekarat Tanutong
Plant Protection Research and Development Office, Department of Agriculture [タイ]
Mu Mu Aung
Forest Research Institute, Forest Department, Ministry of Natural Resources and Environmental Conservation [ミャンマー]
Norio Tanaka
Department of Botany/Tsukuba Botanical Garden, National Museum of Nature and Science [日本]
Qixiang Lu
Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Sciences and Medicine, Zhejiang Sci-Tech University [中国]
Kazuyuki Itoh
Graduate School of Agricultural Science, Kobe University [日本]

キーワード: psbA–trnH spacer, rpl16 intron, Sagittaria aginashi, Sagittaria lichuanensis, Sagittaria potamogetifolia, Sagittaria tengtsungensis, trnC–petN (ycf6) spacer

ジャーナルフリー

2022 年 73 巻 1 号 p. 35-47

DOI https://doi.org/10.18942/apg.202022

詳細

抄録

A new species of Sagittaria (Alismataceae), S. siamaginashi, characterized by a cylindrical branch with numerous tubercles in each leaf axil, is described from Thailand and Myanmar. The scapes and inflores- cences were not seen in nature, but gibberellin-treated individuals flowered under cultivation. In floral morphology, S. siamaginashi is similar to the Chinese endemic, S. lichuanensis. A phylogenetic study based on DNA sequences of the internal transcribed spacer and chloroplast rpl16 intron, psbA–trnH spacer and trnC–petN (ycf6) spacer regions showed that S. siamaginashi and S. lichuanensis were sister taxa. A key to the taxa of Sagittaria in E and SE Asia is also provided.

責任著者(Corresponding author)

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