Annals of Botany 92: 265-272, 2003
© 2003 Annals of Botany Company
Variation in DNA-ploidy Levels of Reynoutria Taxa in the Czech Republic
EK1
INA BÍMOVÁ1,4
1 Institute of Botany, Academy of Sciences of the Czech Republic, CZ-252 43 Pr
honice, Czech Republic, 2 Laboratory of Molecular Cytogenetics and Cytometry, Institute of Experimental Botany, Sokolovská 6, CZ-772 00, Olomouc, Czech Republic, 3 Department of Botany, Charles University, Benátská 2, CZ-128 01, Prague, Czech Republic and 4 Institute of Applied Ecology, Czech Agricultural University Prague, CZ-281 63 Kostelec nad
ern
mi lesy, Czech Republic
* For correspondence. E-mail mandak{at}ibot.cas.cz
Received: 22 November 2002; Returned for revision: 12 March 2003; Accepted: 7 May 2003
The genus Reynoutria is represented by four taxa in the Czech Republic: Reynoutria japonica var. japonica, R. japonica var. compacta, R. sachalinensis and R. xbohemica. By using flow cytometry, cytological variability within the genus is described based on 257 Reynoutria samples. The varieties of R. japonica are cytologically uniform, var. japonica is exclusively octoploid (2n = 8x = 88) and var. compacta occurs only as a tetraploid (2n = 4x = 44), but R. sachalinensis and R. xbohemica exhibit some variation in chromosome numbers. Reynoutria sachalinensis is predominantly tetraploid (2n = 4 x = 44), but also occurs occasionally as hexaploid and octoploid cytotypes. The most common ploidy level in R. xbohemica is hexaploid (2n = 6x = 66), but tetraploid and octoploid clones were also found. The four taxa occurring in the Czech Republic are described briefly and the possible origins of the cytotypes discussed.
Key words: Clonality, Fallopia, flow cytometry, hybridization, invasion, Polygonaceae, polyploidy, Reynoutria japonica var. japonica, R. japonica var. compacta, R. sachalinensis, R. xbohemica.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
M.-S. Tiebre, J.-P. Bizoux, O. J. Hardy, J. P. Bailey, and G. Mahy Hybridization and morphogenetic variation in the invasive alien Fallopia (Polygonaceae) complex in Belgium Am. J. Botany, November 1, 2007; 94(11): 1900 - 1910. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. A. Gammon, J. L. Grimsby, D. Tsirelson, and R. Kesseli Molecular and morphological evidence reveals introgression in swarms of the invasive taxa Fallopia japonica, F. sachalinensis, and F. xbohemica (Polygonaceae) in the United States Am. J. Botany, June 1, 2007; 94(6): 948 - 956. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. L. Grimsby, D. Tsirelson, M. A. Gammon, and R. Kesseli Genetic diversity and clonal vs. sexual reproduction in Fallopia spp. (Polygonaceae) Am. J. Botany, June 1, 2007; 94(6): 957 - 964. [Abstract] [Full Text] [PDF] |
||||
![]() |
M.-S. Tiebre, S. Vanderhoeven, L. Saad, and G. Mahy Hybridization and Sexual Reproduction in the Invasive Alien Fallopia (Polygonaceae) Complex in Belgium Ann. Bot., January 1, 2007; 99(1): 193 - 203. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. MANDAK, K. BIMOVA, I. PLACKOVA, V. MAHELKA, and J. CHRTEK Loss of Genetic Variation in Geographically Marginal Populations of Atriplex tatarica (Chenopodiaceae) Ann. Bot., October 1, 2005; 96(5): 901 - 912. [Abstract] [Full Text] [PDF] |
||||

