Variation in DNA‐ploidy Levels of Reynoutria Taxa in the Czech Republic

Mandák, Bohumil; Pyšek, Petr; Lysák, Martin; Suda, Jan; Krahulcová, Anna; Berchová‐Bímová, Kateřina

doi:10.1093/aob/mcg141

Cited by 66 publications

(72 citation statements)

References 32 publications

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“…This nothotaxon was omitted in the last checklist of Slovak Republic (Marhold, 1998, Eliáš, 2004. Present count agrees with prevailing hexaploid level given by Mandák et al (2003) from neighbouring Czech Republic, although tetraploid and octoploid populations are known in adventive distribution area too (Bailey & Stace, 1992; Bailey et al, 1996;Mandák et al, 2003). Recently published data on common occurrence of Fallopia japonica (Houtt.)…”

Section: Acknowledgementssupporting

confidence: 81%

Chromosome number and DNA ploidy level reports from Central Europe — 2

Mráz¹

2006

Biologia

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Section: Acknowledgementssupporting

confidence: 81%

Chromosome number and DNA ploidy level reports from Central Europe — 2

Mráz¹

2006

Biologia

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“…Because of the numerous crosses and backcrosses, lots of hybrids are formed with different levels of ploidy (including hexaploid, octoploid and aneuploid hybrids) (Hollingsworth and Bailey 2000;Mandak et al 2003;Tiébré et al 2007b;Bailey et al 2009;Krebs et al 2009). Accordingly, FB has more genetic diversity than both parent species in Belgium (Tiébré et al 2007a).…”

Section: Introductionmentioning

confidence: 99%

Variation of growth and functional traits of invasive knotweeds (Fallopia spp.) in Belgium

et al. 2011

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Three invasive Fallopia taxa are present in Belgium: F. japonica (FJ), F. sachalinensis (FS) and their hybrid F. 9 bohemica (FB). FS is the least invasive of the three taxa. In this study, we compared the taxa, in sites where they co-occur, for differences in functional traits that might influence their competitive ability and invasiveness-shoot height and ramification, leaf size, specific leaf area (SLA) and foliar nitrogen (N) concentration. The three taxa exhibited similar growth kinetics and similar SLA. However, FS differed in its architecture and allocation of leaf area, having less ramified shoots and a steeper gradient of decreasing leaf size along the main shoot. Also, FS had greater foliar N and less efficient N resorption from senescing leaves. These traits values may result in lower competitive ability of FS for light and nitrogen. For the same traits, FB was generally intermediate between FS and FJ, but often closer to the latter. FB was more variable than FS and FJ, possibly due to larger genetic variation. SLA and ramification varied greatly amongst sites for all taxa, due in part to plastic response to contrasting light regimes. Variation in functional traits values may in part explain the variation in invasiveness amongst the members of the Fallopia complex in Belgium.

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“…Chromosome numbers for P. cuspidatum vary greatly with geographic location, with diploid numbers of 2n = 44, 52, 66, and 88 reported (Doida 1960;Bailey and Stace 1992;Kim and Park 2000;Mandák et al 2003). The most common base chromosome numbers for Polygonum sensu lato are x = 10 or 11 (included are the four knotweed taxa considered here), with some taxa having x = 12 or 13 (Bailey and Stace 1992).…”

Section: Description and Account Of Variationmentioning

confidence: 97%

The Biology of Invasive Alien Plants in Canada. 5. Polygonum cuspidatum Sieb. & Zucc. [= Fallopia japonica (Houtt.) Ronse Decr.]

Barney¹,

Tharayil²,

DiTommaso³

et al. 2006

Can. J. Plant Sci.

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(Houtt.) Ronse Decr.]. Can. J. Plant Sci. 86: 887-905. Polygonum cuspidatum (Japanese knotweed) is an introduced perennial geophyte in the buckwheat family (Polygonaceae). The phytogeographic distribution of P. cuspidatum in North America suggests a large number of intentional introductions via ornamental plantings from 1870 to 2000, followed by secondary spread from these foci. This species is most pernicious along riparian corridors and road and railroad rights-of-way, reducing visibility, displacing native species, negatively affecting native wildlife, and causing alterations in natural hydrologic processes. Although non-hybrid seed recruitment has not been observed in Europe because of the presence of male-sterile clones only, dispersal of seeds and stem and rhizome fragments by flowing water does occur in North America and populations are readily established from these sources. The primary means of local and regional range expansion is human-mediated transport of rhizome-infested soil. Hybridization is common with the congener P. sachalinense in the introduced ranges of North America and Europe resulting in the equally noxious P. × bohemicum.

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Variation in DNA‐ploidy Levels of Reynoutria Taxa in the Czech Republic

Cited by 66 publications

References 32 publications

Chromosome number and DNA ploidy level reports from Central Europe — 2

Chromosome number and DNA ploidy level reports from Central Europe — 2

Variation of growth and functional traits of invasive knotweeds (Fallopia spp.) in Belgium

The Biology of Invasive Alien Plants in Canada. 5. Polygonum cuspidatum Sieb. & Zucc. [= Fallopia japonica (Houtt.) Ronse Decr.]

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