Genetic Identification of <i>Sagittaria natans</i> (<i>Alismataceae</i>) from Lake Yonuma (Iwate Prefecture) as a New Locality in Japan

DOI

Bibliographic Information

Other Title
  • 岩手県夜沼（国内新産地）から見つかったカラフトグワイ（オモダカ科）のDNA塩基配列に基づく種同定

Abstract

<p>We identified Sagittaria plants distributed in Lake Yonuma (Iwate Prefecture, Japan) via DNA sequencing and also studied the morphology, distribution, and habitat at Lake Yonuma during 2012 and 2015. In addition, we cultivated plants in an outdoor aquarium. The internal transcribed spacer (ITS) region sequence of these unidentified Sagittaria plants completely matched that of S. natans Pall. from Hokkaido, Heilongjiang, Inner Mongolia, Sakhalin, and other GenBank data. In the field, almost all plants sprouted from vegetative propagules and tubers remaining on the parent plants. Some floating-leaved plants had stolons and new tubers. Although no plants flowered, under natural or cultivated conditions, genetic and morphological characteristics indicate that the plants were S. natans. The population in Lake Yonuma is a remnant population of S. natans in Japan and is located at the southeastern extent of the species distribution worldwide. This population of rare plants requires urgent protection.</p>

Journal

Details 詳細情報について

  • CRID
    1390012346468169856
  • DOI
    10.51033/jjapbot.92_4_10797
  • ISSN
    24366730
    00222062
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

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