Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Current refinement(s):

    Records 1 - 5 / 5

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    Zicht op phytophthora: Populatie verschuift in details (interview met Geert Kessel)
    Knuivers, M. ; Kessel, G.J.T. - \ 2015
    Boerderij 100 (2015)34. - ISSN 0006-5617 - p. 26 - 27.
    akkerbouw - aardappelen - phytophthora - europa - sporenverspreiding - gewasbescherming - monitoring - ziekteoverzichten - arable farming - potatoes - phytophthora - europe - spore dispersal - plant protection - monitoring - disease surveys
    Euroblight heeft voor de tweede maal de samenstelling van de phytophthorapopulatie in Europa bepaald. Er zijn minieme verschuivingen
    The role of Mallard (Anas platyrhynchos) in the spread of avian influenza: genomics, population genetics, and flyways
    Kraus, R.H.S. - \ 2011
    Wageningen University. Promotor(en): Herbert Prins; Ron Ydenberg, co-promotor(en): Pim van Hooft. - [S.l.] : S.n. - ISBN 9789461730282 - 143
    aviaire influenzavirussen - aviaire influenza - anas platyrhynchos - ziekteoverdracht - vogeltrek - genomica - populatiegenetica - evolutionaire genetica - zoögeografie - bioveiligheid - ziekteoverzichten - epidemiologie - avian influenza viruses - avian influenza - anas platyrhynchos - disease transmission - bird migration - genomics - population genetics - evolutionary genetics - zoogeography - biosafety - disease surveys - epidemiology

    Birds, in particular poultry and ducks, are a source of many infectious diseases, such as those caused by influenza viruses. These viruses are a threat not only to the birds themselves but also to poultry farming and human health, as forms that can infect humans are known to have evolved. It is believed that migratory birds in general play an important role in the global spread of avian influenza (AI). However, it is still debated how large this role precisely is and whether other modes of spread may be more important. The mallard (Anas platyrhynchos) is the world’s most abundant and well-studied waterfowl species. Besides being an important game and agricultural species, it is also a flagship species in wetland conservation and restoration. Waterfowl (Anseriformes: Anatidae) and especially ducks currently are the focal bird group in long distance dispersal of Avian Influenza in the wild, and the mallard has been identified as the most likely species to transport this virus.

    In my thesis I report aspects of the biology of this important host species of AI by molecular ecological means. As molecular marker system I established a genome-wide set of more than 100,000 SNPs of which I developed a subset of 384 SNPs into an assay to genotype about 1,000 ducks. This subset was employed to study the evolutionary history and speciation processes in the Anas genus. Further investigations into the world-wide mallard population structure on a species level were based not only on this set of 384 SNPs but also on mitochondrial DNA sequences. Last but not last, I investigated an option of AI sampling and detection from duck faeces by technology that is safe from a biohazard perspective, and solves transportation issues related to cold chains.

    The main results of my thesis include the development of a generally applicable improved analysis pipeline to develop genome-wide SNP sets for non-model organisms. Further, my results show that, from a migration system perspective, mallard flyways/populations can hardly be delineated from a biological point of view. Detailed phylogenetic, population genetic and coalescent analyses of a data set of samples spanning the whole northern hemisphere leads me to conclude that the only firm population boundaries that I can draw are between Eurasia and North America, within which panmixia is almost achieved. Mallards’ and other Anas-ducks’ whole continental to global distribution brings them together in sympatry. I can show that a combination of sympatric distribution, conflicting genetically determined and learned mate recognition mechanisms, and genomic compatibility between species helps to explain the long-standing puzzle of waterfowl hybridisation and introgression of genes from one duck species into another. Besides obvious management implications I propose that this fact can be part of the explanation why ducks are so well adaptable and successful, as well as why they show extraordinary abilities to withstand AI infections, or its consequences for health status.

    Overzichtsrapportage 1998-2005 van primaire haarden en eerste aantastingen door Phytophthora infestans, in het kader van het masterplan Phytophthora en Parapluplan Phytophthora, DWK 427
    Evenhuis, A. ; Turkensteen, L.J. ; Raatjes, P. ; Flier, W.G. - \ 2007
    Wageningen : Plant Research International (Nota / Plant Research International 435) - 32
    solanum tuberosum - aardappelen - phytophthora infestans - epidemiologie - ziekteoverzichten - epidemiologische onderzoeken - nederland - solanum tuberosum - potatoes - phytophthora infestans - epidemiology - disease surveys - epidemiological surveys - netherlands
    Om de bestrijdingsstrategie te optimaliseren zijn in de periode 1998-2005 in totaal 184 percelen met primaire haarden van Phytophthora bezocht, waarbij de meest waarschijnlijke oorzaak van de infectiewaard werd vastgesteld. De belangrijkste conclusie van het project is dat al zeer vroeg in het groeiseizoen infecties kunnen ontstaan als de weersomstandigheden gunstig zijn. Wachten met de eerste bespuiting als een kritieke periode wordt voorspeld is onverantwoord, ongeacht het gewasstadium. Een ander interessant resultaat was het onverminderde belang van latent geïnfecteerde poters als bron van infectie
    Belang en toekomst van de iep in Nederland
    Hiemstra, J.A. ; Buiteveld, J. ; Kopinga, J. ; Kranenborg, K.G. ; Ravesloot, M.B.M. ; Sluis, B.J. van der; Vries, S.M.G. de - \ 2006
    Lisse : PPO Bomen (PPO publicatie no. 421) - 51
    ulmus glabra - ulmus laevis - ulmus minor - ophiostoma ulmi - epidemiologie - ziekteoverzichten - ziekteresistentie - plantenziektebestrijding - plantenveredeling - nederland - ulmus glabra - ulmus laevis - ulmus minor - ophiostoma ulmi - epidemiology - disease surveys - disease resistance - plant disease control - plant breeding - netherlands
    In dit rapport het resultaat van een door PPO Bomen en Alterra uitgevoerde orienterende studie in opdracht van het PT naar de rol, het belang en de toekomstmogelijkheden van de iep in Nederland. Hierbij aandacht voor de in Nederland inheemse iepensoorten en hun eigenschappen, de gebruikswaarde van de iep, ontwikkelingen in het gebruik van de iep in Nederland en de invloed van de iepziekte op de aantallen en gebruikte rassen, de ontwikkeling van resistente rassen, en een analyse van de toekomst van de iep in Nederland
    Biomarker voor darmgezondheid
    Meer, C. van der; Kramer, E. ; Meer, R. van der; Keijer, J. - \ 2003
    Voedingsmiddelentechnologie 36 (2003)23. - ISSN 0042-7934 - p. 35 - 35.
    colorectaal kanker - neoplasma's - ziekten - epidemiologische onderzoeken - ziekteoverzichten - genetische merkers - darmslijmvlies - slijmvlies van het spijsverteringskanaal - voedingsstoffen - consumptiepatronen - toxische stoffen - haem - genexpressieanalyse - colorectal cancer - neoplasms - diseases - epidemiological surveys - disease surveys - genetic markers - intestinal mucosa - digestive tract mucosa - nutrients - consumption patterns - toxic substances - haem - genomics
    Onderzoek naar het effect van nutriënten op de gezondheid van het darmslijmvlies. Tevens om nieuwe biomarkers op te sporen
    Check title to add to marked list

    Show 20 50 100 records per page

     
    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.