2005
DOI: 10.1007/s00606-005-0316-6
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Isoenzyme diversity in Reynoutria (Polygonaceae) taxa: escape from sterility by hybridization

Abstract: Abstract. The genus Reynoutria is represented by four taxa in the Czech Republic -R. japonica var. japonica and compacta, R. sachalinensis and R. · bohemica. Using isoenzyme analysis, we determined the degree of genotype variability in all taxa and compared clones of R. japonica var. japonica from the Czech Republic with those from Great Britain. While the rarely occurring tetraploid variety R. japonica var. compacta possesses low variability, the octoploid female clone of R. japonica var. japonica is genetica… Show more

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Cited by 63 publications
(76 citation statements)
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“…Nevertheless, the F. bohemica taxon exhibits a high genetic variation (Mandák et al 2005), due to its occurrence at three ploidy levels and because the hybrid has been produced a number of times at different places (Pyšek et al 2003). More information about the geographical interaction between Fallopia populations and potentially allelopathic Sambucus populations could be useful in formulating different evolution models.…”
Section: Discussionmentioning
confidence: 99%
“…Nevertheless, the F. bohemica taxon exhibits a high genetic variation (Mandák et al 2005), due to its occurrence at three ploidy levels and because the hybrid has been produced a number of times at different places (Pyšek et al 2003). More information about the geographical interaction between Fallopia populations and potentially allelopathic Sambucus populations could be useful in formulating different evolution models.…”
Section: Discussionmentioning
confidence: 99%
“…Similarly, only a single genotype of F. baldschuanica (diploid, 2n = 20) with hermaphrodite flowers was apparently introduced into Europe (Bailey 1994;Tiébré et al 2007b), but further investigations are warranted. In contrast, several genotypes of F. sachalinensis (tetraploid, 2n = 44) with either male-sterile or male-fertile flowers occur in Europe (Mandak et al 2005;Tiébré et al 2007b), and this species can therefore act as a pollen donor for F. japonica (Bailey 1994;Tiébré et al 2007b). Genetic analyses have indicated that the resulting hybrid F. 9 bohemica (hexaploid, 2n = 66) has a higher genetic diversity in Europe than both parental species (Mandak et al 2005;Bailey et al 2007;Tiébré et al 2007a).…”
Section: Study Speciesmentioning
confidence: 99%
“…In contrast, several genotypes of F. sachalinensis (tetraploid, 2n = 44) with either male-sterile or male-fertile flowers occur in Europe (Mandak et al 2005;Tiébré et al 2007b), and this species can therefore act as a pollen donor for F. japonica (Bailey 1994;Tiébré et al 2007b). Genetic analyses have indicated that the resulting hybrid F. 9 bohemica (hexaploid, 2n = 66) has a higher genetic diversity in Europe than both parental species (Mandak et al 2005;Bailey et al 2007;Tiébré et al 2007a). Only one individual of F. 9 conollyana (pentaploid, 2n = 54) has ever been found established in nature, and there is no information available on flower structure of this hybrid (Bailey et al 2007).…”
Section: Study Speciesmentioning
confidence: 99%
“…The phenomenon of the Japanese Knotweed invasion of Europe has been well-studied and is well-understood (Bailey 1994;Mandák et al 2003Mandák et al , 2004Mandák et al , 2005. Basically, a male sterile clone of F. japonica var.…”
Section: Introductionmentioning
confidence: 99%