National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
The role of sexual reproduction in the invasive behavior of polyploid species complexes in alien plants
Jarůšková, Dominika ; Slovák, Marek (advisor) ; Urfus, Tomáš (referee)
Alien plants have a significantly negative impact on the composition and structure of resident communities. They might cause a remarkable decrease in their biodiversity and even severely threaten the existce of rare species. One of the factors that can accelerate invasive behaviour of alien species is whole-genome duplication (polyploidy), which can, via increased genetic diversity, improve overall fitness, reproduction abilities and competitiveness of polyploid cytotypes compared to their diploid counterparts. This work represents a literature review focused on the reproductive mechanisms of invasive species and the role they play in their invasive behavior. Reproduction is further analyzed in the context of polyploidy, with a special focus on the effects of polyploidy on sexual reproduction. Last but not least, the work presents and discusses case studies that deal with selected invasive polyploid species complexes and analyze the success of their sexual reproduction in their native as well as invaded distribution range. Key words: alien species, polyploidy, sexual reproduction

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