식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제52권4호
  • /
  • Pages.214-218
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  • 2022
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  • 1225-8318(pISSN)
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  • 2466-1546(eISSN)
한국식물분류학회 (The Korean Society of Plant Taxonomists)
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Somatic chromosome numbers of four Eleocharis taxa from Korean populations (Cyperaceae)

  • Kyong-Sook, CHUNG (Department of Medicinal Plant Science, Jungwon University) ;
  • Chang Shook, LEE (Department of Science Education, Ewha Womans University) ;
  • Jung-Hyun, KIM (Korean Plant Diversity Institute)
  • 투고 : 2022.10.30
  • 심사 : 2022.12.19
  • 발행 : 2022.12.31
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초록

Eleocharis R. Br. (Cyperaceae) is characterized by unbranched culms, one terminal spikelet, bisexual flowers, and bristly perianths, occurring mainly in circumboreal marshes and wetlands. There are about 250 species worldwide, and 15 taxa in Korea have been recognized. Chromosomes in Cyperaceae are known to be holocentric, missing constricted centromeres during cell division. For the first time, we report the chromosome counts of Eleocharis from Korean populations of E. attenuata f. laeviseta (Nakai) H. Hara (2n = 20); E. parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer (2n = 10); E. ussuriensis Zinserl. (2n = 16); and E. valleculosa var. setosa Ohwi (2n = 16). The populations exhibit variations in their chromosome sizes from ca.1.7 ㎛ to ca. 6 ㎛, categorized as gradient and bimodal karyotypes. The karyotypes observed are congruent with previous phylogenetic groups proposed. To clarify the traditional and phylogenetic classification of Korean Eleocharis, further taxonomic and chromosomal investigations with additional taxon sampling efforts are required.

키워드

과제정보

We thank Tomomi Masaki (Okayama University of Science) for suggestions on chromosome experiments and taxonomic identification. The present research was supported by National Institute of Biological Resources (Flora of Korea (2022), NIBR 202204101).

참고문헌

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