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Showing 1 to 9 of 9 for “"Clonal reproduction"”.
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The effects of clonal reproduction on population demography, genetic structure, and mating pattern of <i>Dicentra canadensis</i>
Many flowering plants can reproduce clonally by propagules derived from vegetative organs. Because clonal propagules often grow near their parents, clonal reproduction can result in spatially aggregated ramets. Clustering of clones can reduce the frequency of pollen transfer between genets if …
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The population genetics of Festuca rubra on park grass
An explanation for the ubiquity of sexual reproduction remains elusive although it is commonly suggested that sex and recombination facilitate a more rapid response to environmental change than clonal reproduction. If this suggestion is true then one would expect the frequency of sexual …
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Drivers of reproductive variability in Vaccinium cespitosum and vaccinium vitis-idaea in northeastern Minnesota
… land management decisions. I investigated how clonality impacts reproductive variability in Vaccinium cespitosum and Vaccinium vitis-idaea (Ericaceae), and how the history of land management affects reproductive variability in V. cespitosum. Vaccinium populations with a history of land …
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Effects of Management and Population Size on Genetic Diversity of Eggert's Sunflower (HELIANTHUS EGGERTII; ASTERACEAE)
… species has both sexual and asexual modes of reproduction, which can influence the amount of genetic diversity present within and among populations. Maintaining genetic diversity is one of the primary objectives in managing threatened species or populations. Fire and population size may …
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The cost of longevity: loss of sexual function in natural clones of Populus tremuloides
Most clonal plants exhibit a modular structure at multiple levels. At the level of the organs, they are characterized by functional modules, such as, internodes, leaves, branches. At the level of the genetic individual (clone or genet), they possess independent evolutionary and physiological units …
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The biology of Rosa multiflora (Rosaceae) and two of its biotic mortality factors
… from these original plantings via seeds and clonally, invading pasture and wooded areas. We found that at the scale of contiguous plants (patches) R. multiflora is spreading clonally and through sexual reproduction. Although there were multiple genotypes in the large patches of R. multifora, …
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Genetic diversity and population structure of Vaccinium vitis-idaea
… crops and their wild relatives, which are often clonal. This is because in species capable of asexual reproduction, it is necessary to first differentiate between clonal ramets and unique genets before measuring genetic diversity. We assessed the clonal structure and genetic diversity in wild …
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Evolution of reproductive mode in the scaly-winged bark louse Echmepteryx hageni
The origin and maintenance of sexual reproduction has long been of interest to evolutionary biologists. While the relationship between genetic diversity and asexuality has received recent attention, the precise nature of this relationship is dependent on the physiological mechanism (e.g. automixis …