Publicaties
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Community structure, population dynamics and diversity of fungi in a full-scale membrane bioreactor (MBR) for urban wastewater treatment Universiteit Gent
Population size affects genetic diversity and fine-scale spatial genetic structure in the clonal distylous herb Menyanthes trifoliata Plantentuin Meise / Agentschap Plantentuin Meise
Small populations often show a low degree of genetic diversity. In distylous clonal plants, genetic diversity may also be influenced by other factors, such as floral morph aggregation, clonality and spatial genetic structure. Nevertheless, the relationships between population size, genetic diversity and spatial genetic structure are poorly understood. We tested for the effects of population size on genetic diversity and fine-scale spatial ...
Performance of model-based multifactor dimensionality reduction methods for epistasis detection by controlling population structure KU Leuven
BACKGROUND: In genome-wide association studies the extent and impact of confounding due to population structure have been well recognized. Inadequate handling of such confounding is likely to lead to spurious associations, hampering replication, and the identification of causal variants. Several strategies have been developed for protecting associations against confounding, the most popular one is based on Principal Component Analysis. In ...
Population structure of Rhizobium leguminosarum nodulating Vicia cracca at different geographic scales Plantentuin Meise / Agentschap Plantentuin Meise KU Leuven
The genetic diversity and population structure of about 350 Rhizobium leguminosarum biovar viciae isolates from Vicia cracca were analysed. A hierarchical sampling design was used covering three regions, one region in Belgium and two in France, in which multiple local V. cracca populations were sampled. Rhizobium isolates were genotyped using RAPD and by sequencing two chromosomal housekeeping genes (glnII and recA) and one plasmid-borne gene ...
Population genetic structure of the tree-hole tick **Ixodes arboricola** (Acari: Ixodidae) at different spatial scales Universiteit Antwerpen
The endophilic tick Ixodes arboricola infests cavity-nesting birds, and its dispersal strongly depends on the movements of its host. Population genetic structure of I. arboricola was studied with seven polymorphic microsatellite markers. We collected 268 ticks from 76 nest boxes in four woodlots near Antwerp, Belgium. These nest boxes are mainly used by the principal hosts of I. arboricola, the great tit Parus major and the blue tit Cyanistes ...
Genetic diversity and population structure of Mycobacterium marinum: new insights into host and environmental specificities Universiteit Gent
Mycobacterium marinum causes a systemic tuberculosis-like disease in fish and skin infections in humans that can spread to deeper structures, resulting in tenosynovitis, arthritis, and osteomyelitis. However, little information is available concerning (i) the intraspecific genetic diversity of M. marinum isolated from humans and animals; (ii) M. marinum genotype circulation in the different ecosystems, and (iii) the link between M. marinum ...
Weak population structure and recent demographic expansion of the monogenean parasite Kapentagyrus spp. infecting clupeid fishes of Lake Tanganyika, East Africa Universiteit Antwerpen Universiteit Hasselt KU Leuven
Lake Tanganyika, East Africa, is the oldest and deepest African Great Lake and harbours one of the most diverse fish assemblages on earth. Two clupeid fishes, Limnothrissa miodon and Stolothrissa tanganicae, constitute a major part of the total fish catch, making them indispensable for local food security. Parasites have been proposed as indicators of stock structure in highly mobile pelagic hosts. We examined the monogeneans Kapentagyrus ...
Evolution of the population structure of Venturia inaequalis, the apple scab fungus, associated with the domestication of its host KU Leuven Universiteit Gent
Evaluating the impact of plant domestication on the population structure of the associated pathogens provides an opportunity to increase our understanding of how and why diseases emerge. Here, we investigated the evolution of the population structure of the apple scab fungus Venturia inaequalis in response to the domestication of its host. Inferences were drawn from multilocus microsatellite data obtained from samples collected on (i) the ...
A comparison of the population genetic structure of parasitic Viscum album from two landscapes differing in degree of fragmentation Instituut voor Landbouw-, Visserij- en Voedingsonderzoek Universiteit Gent KU Leuven
Parasite populations do not necessarily conform to expected patterns of genetic diversity and structure. Parasitic plants may be more vulnerable to the negative consequences of landscape fragmentation because of their specialized life history strategies and dependence on host plants, which are themselves susceptible to genetic erosion and reduced fitness following habitat change. We used AFLP genetic markers to investigate the effects of habitat ...