Groenekennis

Informatie voor professionals in voedsel en groen

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    Groenekennis - Informatie voor professionals in voedsel en groen

    Groenekennis bevat artikelen uit vaktijdschriften, rapporten, video’s, presentaties, posters en websites op het gebied van landbouw, visserij, groene ruimte en voeding. Groenekennis wordt dagelijks bijgewerkt en bevat ongeveer 500.000 bronnen.

    Groenekennis is de globale view over diverse deelbestanden. Groenekennis is gevuld met alle informatie uit Groen Kennisnet, de Hydrotheek, Tuinpad, IB archief, ARTIK, bioKennis, Kennisbank Plantaardige bronnen, Kennisbank Zeldzame landbouwhuisdieren en afgesloten documentatiebestanden zoals Land Bodem Water en Consumenten- en huishoudstudies.

    Groen Kennisnet is een zeer belangrijk onderdeel van Groenekennis. De doelstelling van Groen Kennisnet is kennis delen op het gebied van Voedsel en Groen te bevorderen en te faciliteren voor een breed publiek.

    Bronnen in Groenekennis kunnen direct opgevraagd worden via een geavanceerde zoekmachine met een 'google-achtige' interface. Met filters kan ingezoomd worden op diverse aspecten, zoals Trefwoord, Collectie, Jaar en Auteur. Bovendien biedt Groenekennis gebruikers de mogelijkheid om via de E-mail geattendeerd te worden op aanvullingen in specifieke vakgebieden.
    De Tijdschriftenlijst biedt een overzicht van tijdschriften waaruit de artikelen voor Groenekennis worden geselecteerd. Door te klikken op een titel krijgt u alle artikelen uit dat tijdschrift in de Groenekennis database getoond.
    Zoeken op kaart biedt een geografische ingang op de beschikbare publicaties over de binnen dit bestand onderscheiden gebieden.

    Groenekennis is onderdeel van het bibliotheeksysteem van WUR. Praktijkgerichte publicaties en rapporten van WUR komen daardoor automatisch beschikbaar. Daarnaast wordt de database doorlopend gevuld met voor het groen onderwijs bruikbare bronnen en artikelen, video’s en websites. Het percentage online is de laatste jaren gegroeid tot tweederde van de totale aanwas per jaar. Dit percentage groeit nog steeds.

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Molecular genetic analysis of a cattle population to reconstitute the extinct Algarvia breed \ Genetics, selection, evolution [Artikel]
Ginja, C. \ Penedo, M.C.T. \ Sobral, M.F. \ Matos, J. \ Borges, C. \ Neves, D. \ Rangel-Figueiredo, T. \ Cravador, A. \ 2010
Decisions to initiate conservation programmes need to account for extant variability, diversity loss and cultural and economic aspects. Molecular markers were used to investigate if putative Algarvia animals could be identified for use as progenitors ...
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Estimation of relatedness among non-pedigreed Yakutian cryo-bank bulls using molecular data: implications for conservation and breed management \ Genetics, selection, evolution [Artikel]
Tapio, I. \ Tapio, M. \ Li, M. \ Popov, R. \ Ivanova, Z. \ Kantanen, J. \ 2010
Background: Yakutian cattle, the last remaining native cattle breed in Siberia, are well adapted to the extreme sub-arctic conditions. Nowadays only ca. 1200 purebred animals are left in Yakutia. The semen of six Yakutian bulls was stored in a cryo-b ...
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A microsatellite-based analysis for the detection of selection on BTA1 and BTA20 in northern Eurasian cattle (Bos taurus) populations \ Genetics, selection, evolution [Artikel]
Li, M.-H. \ Touro, T.T. \ Lauren, H. \ Kantanen, J. \ 2010
Microsatellites surrounding functionally important candidate genes or quantitative trait loci have received attention as proxy measures of polymorphism level at the candidate loci themselves. In cattle, selection for economically important traits is ...
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Dynamics of long-term genomic selection \ Genetics, selection, evolution [Artikel]
Jannink, J.-L. \ 2010
Background: Simulation and empirical studies of genomic selection (GS) show accuracies sufficient to generate rapid gains in early selection cycles. Beyond those cycles, allele frequency changes, recombination, and inbreeding make analytical predicti ...
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Estimating genetic diversity across the neutral genome with the use of dense marker maps \ Genetics, selection, evolution [Artikel]
Engelsma, K.A. \ Calus, M.P.L. \ Bijma, P. \ Windig, J.J. \ 2010
With the advent of high throughput DNA typing, dense marker maps have become available to investigate genetic diversity on specific regions of the genome. The aim of this paper was to compare two marker based estimates of the genetic diversity in spe ...
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Assessing population genetic structure via the maximisation of genetic distance \ Genetics, selection, evolution [Artikel]
Rodríguez-Ramilo, S.T. \ Toro, M.A. \ Fernández, J. \ 2009
In this study, a new method to infer the number of clusters and to assign individuals to the inferred populations is proposed. The implemented criterion is the maximisation (via a simulated annealing algorithm) of the averaged genetic distance betwee ...
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Genetic diversity of a large set of horse breeds raised in France \ Genetics, selection, evolution [Artikel]
Leroy, G. \ Callède, L. \ Verrier, E. \ Mériaux, J. \ Ricard, A. \ Danchin-Burge, C. \ Rognon, X. \ 2009
The genetic diversity and structure of horses raised in France were investigated using 11 microsatellite markers and 1679 animals belonging to 34 breeds. Between-breed differences explained about ten per cent of the total genetic diversity (Fst = 0.0 ...
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CORRECTION: Genetic diversity of a large set of horse breeds raised in France \ Genetics, selection, evolution [Artikel]
Leroy, G. \ Callède, L. \ Verrier, E. \ Mériaux, J. \ Ricard, A. \ Danchin-Burge, C. \ Rognon, X. \ 2009
CORRECTION: After the recent publication of our article (Leroy, Genetics Selection Evolution 2009 41:5), we found several errors in the published Table Three, concerning the computation of contribution to withinbreed diversity (CW). We apologize to t ...
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History and structure of the closed pedigreed population of Icelandic Sheepdogs \ Genetics, selection, evolution [Artikel]
Oliehoek, P.A. \ Bijma, P. \ Meijden, A. van der \ 2009
Background: Dog breeds lose genetic diversity because of high selection pressure. Breeding policies aim to minimize kinship and therefore maintain genetic diversity. However, policies like mean kinship and optimal contributions, might be impractical. ...
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Genetic differentiation between the old and new types of Serbian Tsigai sheep \ Genetics, selection, evolution [Artikel]
Cinkulov, M. \ 2008
Two Tsigai sheep populations exist in Serbia: the Old type, called Cokan, and the New type. It is assumed that the New type results from upgrading Tsigai sheep with exotic genetic material. We investigated genetic diversity and differentiation of the ...
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Individual increase in inbreeding allows estimating effective sizes from pedigrees \ Genetics, selection, evolution [Artikel]
Gutiérrez, J.P. \ 2008
We present here a simple approach to obtain reliable estimates of the effective population size in real world populations via the computation of the increase in inbreeding for each individual (delta Fi) in a given population. The values of delta Fi a ...
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Sustainable long-term conservation of rare cattle breeds using rotational AI sires \ Genetics, selection, evolution [Artikel]
Colleau, J.-J. \ Avon, L. \ 2008
The development of inbreeding in rotation breeding schemes, sequentially using artificial insemination (AI) sires over generations, was investigated for a full AI scheme. Asymptotic prediction formulae of inbreeding coefficients were established when ...
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Genetic variation in eight Chinese cattle breeds based on the analysis of microsatellite markers \ Genetics, selection, evolution [Artikel]
Sun, W. \ 2008
Genetic variability and genetic relationships were investigated among eight Chinese cattle breeds using 12 microsatellite markers. Three hundred and fifty-two alleles were detected and the average number of alleles per locus ranged from 8.33±1.67 in ...
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Impact of strong selection for the PrP major gene on genetic variability of four French sheep breeds \ Genetics, selection, evolution [Artikel]
Palhiere, I. \ 2008
Effective selection on the PrP gene has been implemented since October 2001 in all French sheep breeds. After four years, the ARR ‘‘resistant’’ allele frequency increased by about 35% in young males. The aim of this study was to evaluate the impact o ...
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Biodiversity of pig breeds from China and Europe estimated from pooled DNA samples: differences in microsatellite variation between two areas of domestication \ Genetics, selection, evolution [Artikel]
Megens, H.-J. \ 2008
Microsatellite diversity in European and Chinese pigs was assessed using a pooled sampling method on 52 European and 46 Chinese pig populations. A Neighbor Joining analysis on genetic distances revealed that European breeds were grouped together and ...
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Conservation priorities for Ethiopian sheep breeds combining threat status, breed merits and contributions to genetic diversity \ Genetics, selection, evolution [Artikel]
Gizaw, S. \ 2008
Prioritizing livestock breeds for conservation needs to incorporate both genetic and non-genetic aspects important for the survival of the breeds. Here, we apply a maximum-utility-strategy to prioritize 14 traditional Ethiopian sheep breeds based on ...
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Estimation of breed contributions to present and future genetic diversity of 44 North Eurasian cattle breeds using core set diversity measures \ Genetics, selection, evolution [Artikel]
Bennewitz, J. \ 2006
Extinction of breeds threatens genetic diversity of livestock species. The need to conserve genetic diversity is widely accepted but involves in general two questions: (i) is the expected loss of diversity in a set of breeds within a defined future t ...
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Optimum allocation of conservation funds and choice of conservation programs for a set of African cattle breeds \ Genetics, selection, evolution [Artikel]
Reist-Marti, S.B. \ Awudu-Abdulai \ Simianer, H. \ 2006
Although funds for livestock conservation are limited there is little known about the optimal allocation of conservation funds. A new algorithm was used to allocate Mio US$ 1, 2, 3, 5 or unlimited funds, discounted over 50 years, on 23 African cattle ...
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A novel method for the estimation of the relative importance of breeds in order to conserve the total genetic variance \ Genetics, selection, evolution [Artikel]
Bennewitz, J. \ Meuwissen, T.H.E. \ 2005
The need for conservation of farm animal genetic resources is widely accepted. A key question is the choice of breeds to be conserved. For this purpose, a core set of breeds was introduced in that the total genetic variance of a hypothetical quantita ...
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The combined use of embryos and semen for cryogenic conservation of mammalian livestock genetic resources \ Genetics, selection, evolution [Artikel]
Boettcher, P.J. \ Stella, A. \ Pizzi, F. \ Gandini, G. \ 2005
The objective of this empirical simulation study was to evaluate the use of a combination of semen and embryos in the creation of gene banks for reconstruction of an extinct breed. Such an approach was compared for banks with varying proportions of e ...
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