Invasion Success by Plant Breeding. Evolutionary Changes as by Christel Ross

By Christel Ross

Invasive species are an immense probability to worldwide biodiversity and reason major monetary expenditures. learning organic invasions is either crucial for combating destiny invasions and can also be helpful in an effort to comprehend uncomplicated ecological tactics. Christel Ross investigates even if evolutionary alterations by way of plant breeding are a suitable issue for the invasion good fortune of Mahonia aquifolium in Germany. Her findings express that invasive populations fluctuate from local populations in quantitative-genetic characteristics and molecular markers, while their genetic range is the same. She postulates that those evolutionary adjustments are really end result of the plant breeding, together with inter-specific hybridization, than the results of genetic bottleneck of the releases from professional herbivores.

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Additional info for Invasion Success by Plant Breeding. Evolutionary Changes as a Critical Factor for the Invasion of the Ornamental Plant: Mahonia Aquifolium

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Red z M. aquifolium, blue  M. repens, green „ M. 2 Sampling and genetic analyses We analysed Mahonia individuals of five taxa including three native species, invasive individuals and cultivars (Table 1 and Table 2). In the native range in North America, individuals of M. aquifolium, M. repens and M. pinnata were sampled in six (n = 65 samples), nine (n = 119) and two (n = 34) populations, respectively (Figure 1). Invasive Mahonia were sampled from 23 invasive populations (n = 416 individuals) in Germany and the Czech Republic.

Repens and M. pinnata, we compared populations of the three native species, various commercial cultivars and invasive populations. Invasive populations and cultivars were genetically differentiated from the native groups, but differences did not result from genetic bottlenecks. In cultivars but not in invasive populations, we proved genes from M. pinnata. No significant amount of M. repens genes were found in cultivars and invasive populations, but this result has to be viewed with caution because of the close relationship between native M.

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