Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
권호 표지
DOI QR코드

DOI QR Code

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)
  • Received : 2022.10.30
  • Accepted : 2022.12.19
  • Published : 2022.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords

Acknowledgement

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).

References

  1. Chung, K.-S. and G. Y. Chung. 2021. Chromosome numbers of eight Carex taxa in Korea (Cyperaceae). Korean Journal of Plant Taxonomy 51: 192-197. https://doi.org/10.11110/kjpt.2021.51.3.192
  2. Dai, L. and M. T. Strong. 2010. Eleocharis R. Brown. In Flora of China. Vol. 23. Acoraceae through Cyperaceae, W. Zhengyi, P. H. Raven, and H. Deyuan (eds.), Missouri Botanical Garden Press, St. Louis, MO. Pp. 188-200.
  3. Fedorov, A. A. 1969. Chromosomal Numbers of Flowering Plants. Academy of Sciences of the USSR, the Komarov V. L. Botanical Institute, Nauka, Leningrad. P. 254.
  4. Gonzalez-Elizondo, M. S. and P. M. Peterson. 1997. A classification of and key to the supraspecific taxa in Eleocharis (Cyperaceae). Taxon 46: 433-449. https://doi.org/10.2307/1224386
  5. Hakansson, A. 1954. Meiosis and pollen mitosis in x-rayed untreated spikelets of Eloecharis palustris. Hereditas 40: 325-345. https://doi.org/10.1111/j.1601-5223.1954.tb02976.x
  6. Hakansson, A. 1958. Holocentric chromosomes in Eleocharis. Hereditas 44: 531-540. https://doi.org/10.1111/j.1601-5223.1958.tb03498.x
  7. Hoshino, T. 1987. Karyomorphological studies on 6 taxa of Eleocharis in Japan. Bulletin Okayama University Science 22: 305-312.
  8. Hoshino, T., K. Okamura, D.-Y. Hong, L.-K. Dai, M. Nakata and R. Tanaka. 1993. Cytological studies of Chinese Cyperaceae (1). Chromosome counts of nine species collected from Jilin, Liaoning and Hebei provinces. Journal of Japanese Botany 68: 65-69.
  9. Hoshino, T., T. Masaki and M. Nishimoto. 2011. Illustrated Sedges of Japan. Heibonsha Ltd., Tokyo. Pp. 610-637.
  10. Ji, S.-J., S.-H. Park and J.-C. Yang. 2015. A new record of Eleocharis parvula (Roem. & Schult.) Bluff, Nees & Schauer (Cyperaceae) in Korea. Korean Journal of Plant Taxonomy 45: 169-172. https://doi.org/10.11110/kjpt.2015.45.2.169
  11. Oh, Y. C. 2000. Korean Cyperaceae. Sungshin Women's University Press, Seoul. Pp. 88-111.
  12. Oh, Y. C. 2007. Eloecharis R. Br. In The Genera of Vascular Plants of Korea. Park. C. W. (ed.), Academy Publishing Co., Seoul. Pp. 1132-1135.
  13. Oh, Y. C. and J. Y. Lee. 1997. A reconsideration on the Eleocharis R. Br. (Cyperaceae) of Korea: Stem and achene epidermis patterns. Korean Journal of Plant Taxonomy 27: 11-39. https://doi.org/10.11110/kjpt.1997.27.1.011
  14. Park, S.-H., Y.-M. Lee, H.-J. Kim, J.-C. Yang, C.-S. Jang, K.-H. Lee, J.-S. Lee, J.-S. Han, H.-J. Kim, K.-S. Jeong, D.-C. Son, D.-H. Lee, M.-J. Joo, E.-M. Sun, C.-H. Shin, K. Choi, S.-H. Oh, K. S. Chang, S.-Y. Jung and S.-J. Ji. 2016. Illustrated Cyperaceae of Korea. Munyoungsa, Seoul. Pp. 16, 410-433.
  15. Roalson, E. H. and E. A. Friar. 2000. Infrageneric classification of Eleocharis (Cyperaceae) revised: Evidence from the internal transcribed spacer (ITS) region of nuclear ribosomal DNA. Systematic Botany 25: 323-336. https://doi.org/10.2307/2666645
  16. Shatalova, S. A. 1999. A study of the chromosome numbers in vascular flora of the seaboard of Japanese Sea (the Primorsky Territory). Citologija 41: 1088.
  17. Shatalova, S. A. 2000. Chromosome numbers in vascular plants of the Primorsky territory. Botanicheskii Zhurnal (Moscow & Leningrad) 85: 152-156.
  18. Smith, S. G., J. J. Bruhl, M. S. Gonzalez-Elizondo and F. J. Menapace. 2002. Eleocharis. In Flora of North America, Vol. 23. Magnoliophyta: Commeliaidae (in part) Cyperaceae. Flora of North America Editorial Committee (ed.), Oxford University Press, New York. Pp. 60-120.
  19. Yano, O., T. Katsuyama, H. Tsubota and T. Hoshino. 2004. Molecular phylogeny of Japanese Eleocharis (Cyperaceae) based on ITS sequence data, and chromosomal evolution. Journal of Plant Research 117: 409-419. https://doi.org/10.1007/s10265-004-0173-3