Cytological Studies on Seven Species of Korean Carex (Cyperaceae)

被引：9

作者：

Chung, Kyong-Sook ^{[1
]}

Hoshino, Takuji ^{[2
]}

Masaki, Tomomi ^{[2
]}

Yang, Jong Cheol ^{[3
]}

Im, Hyoung-Tak ^{[4
]}

机构：

[1] Jungwon Univ, Dept Med Plant Sci, Chungbuk 28024, South Korea

[2] Okayama Univ Sci, Fac Biosphere Geosphere Sci, Dept Biosphere Geosphere Sci, Kita Ku, 1-1 Ridai Cho, Okayama, Okayama 7000005, Japan

[3] Korea Natl Arboretum, Div Forest Biodivers, Pocheon Si 11186, Gyeonggi Do, South Korea

[4] Chonnam Natl Univ, Dept Div Biol Sci, Gwangju 61186, South Korea

来源：

CYTOLOGIA | 2016年 / 81卷 / 02期

关键词：

Agmatoploidy; Carex; Chromosome; Cyperaceae; Korea; CHROMOSOME EVOLUTION; SEDGES CAREX; GENUS CAREX; NUMBER;

D O I：

10.1508/cytologia.81.143

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Chromosome numbers of seven Carex taxa collected from the Korean peninsula are reported. This study is the first observations of meiotic chromosomes for Carex species from Korean populations. A univalent is observed in C. ischnostachya Steud. var. fastigiata T. Koyama (n=26II+I), and two different chromosome numbers are observed in an individual of C. leucochlora Bunge (n=27II, 29II). For the first time, the chromosome number for C. polyschoena H. Lev. & Vaniot (n=26II) is reported here. The results of diverse chromosome numbers suggest that polyploidy and aneuploidy including agmatoploidy and symploidy (increases and decreases in chromosome number due to fission or fusion, respectively) have played an important role for Carex species diversity in Korea.

引用

页码：142 / 146

页数：5

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