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Dans cet article, notre objectif est de définir, pour les acteurs publics et privés, le fonctionnement institutionnel et le système d’incitation facilitant leur adhésion à la charte de conservation des ressour...
This article is part of a Supplement: Volume 33 Supplement 1
L’extraordinaire richesse des dérivés traditionnels du manioc élaborés par les différentes ethnies amazoniennes ne peut être directement reliée à la diversité des variétés cultivées. Cette dernière résulte aus...
This article is part of a Supplement: Volume 33 Supplement 1
Temporal evolution of genetic variability in a Dynamic Management programme of wheat populations was assessed for fitness-related traits and for 29 RFLP markers. Populations of the 1st, 5th and 10th generation...
This article is part of a Supplement: Volume 33 Supplement 1
À côté des riz adventices des régions tropicales qui résultent d’introgressions variées avec les riz sauvages, de nouvelles formes ont émergé plus récemment et présentent aussi de nombreux attributs des formes...
This article is part of a Supplement: Volume 33 Supplement 1
Two experiments were set up to investigate how to maintain or create genetic diversity in artificial or managed populations of plants. Using Arabidopsis thaliana, we established 18 metapopulations of 20 populatio...
This article is part of a Supplement: Volume 33 Supplement 1
In order to understand the dynamics of contact zones between natural and cultivated populations of alfalfa (Medicago sativa L.) in Spain, we investigated the patterns of mitochondrial variation (characterized thr...
This article is part of a Supplement: Volume 33 Supplement 1
The reliability and the level of taxonomie resolution of the amplified fragment length polymorphism (AFLP) method were evaluated with species of patho-genic bacteria involved in human, animal and plant disease...
This article is part of a Supplement: Volume 33 Supplement 1
Vitis vinifera est la seule espèce endémique de vigne en Europe. Le compartiment sauvage Vitis vinifera subspecies silvestris a subi une forte érosion et seuls quelques peuplements subsistent encore actuellement....
This article is part of a Supplement: Volume 33 Supplement 1
RAPD profiles of 121 olive cultivars were compared to those of 20 natural oleaster populations from eastern and western parts of the Mediterranean Basin. Considering the proximities of RAPD profiles between cu...
This article is part of a Supplement: Volume 33 Supplement 1
Polyandry and competition for spawning sites in a sedentary brown trout population was studied using four highly variable microsatellite loci. All loci combined gave average exclusion probabilities of 0.91 and...
This article is part of a Supplement: Volume 33 Supplement 1
Few empirical studies of bird populations have examined in detail how proximate and ultimate factors determine phenotypic variation in relation to small-scale environmental variation. This question has been ad...
This article is part of a Supplement: Volume 33 Supplement 1
A numerical simulation of freezing-thawing protocols applicable to mammalian spermatozoa is described and validated in the boar and the ram. Original aspects include: (1) the simulation of all steps of the tec...
This article is part of a Supplement: Volume 33 Supplement 1
Sperm cryopreservation is used for preservation and diffusion of genetic diversity and genetic progress. One approach to improve cryopreservation is to identify and control the cellular parameters responsible ...
This article is part of a Supplement: Volume 33 Supplement 1
The selection of resistant sheep in farms could increase the selective pressure during the parasitic phase and this might affect life-traits of the parasite nematodes. Before selecting for host resistance, it ...
This article is part of a Supplement: Volume 33 Supplement 1
In mammals, testis determination is under the control of the sex-determining gene SRY. This Y-linked gene encodes a protein with a DNA binding domain similar to those found in high-mobility-group proteins. Here w...
Genetic differentiation among nine populations of the endemic lizard Lacerta dugesii Milne-Edwards 1829 (Lacertidae) from four groups of islands constituting the Archipelago of Madeira, was investigated by protei...
Chicks of both sexes issued from the cross of heterozygous K/k+ cocks for the slow-feathering sex linked K allele with k+ (rapid feathering) hens, were compared from the age of 4 to 10 weeks at two ambient temper...
Daily feed intake data of 1 279 French Landrace (FL, 1 039 boars and 240 castrates) and 2 417 Large White (LW, 2 032 boars and 385 castrates) growing pigs were recorded with electronic feed dispensers in three...
The Erratum to this article has been published in Genetics Selection Evolution 2002 34:269
The prediction of identity by descent (IBD) probabilities is essential for all methods that map quantitative trait loci (QTL). The IBD probabilities may be predicted from marker genotypes and/or pedigree infor...
Methods for detecting Quantitative Trait Loci (QTL) without markers have generally used iterative peeling algorithms for determining genotype probabilities. These algorithms have considerable shortcomings in c...
A random regression model for the analysis of "repeated" records in animal breeding is described which combines a random regression approach for additive genetic and other random effects with the assumption of...
A bovine artificial chromosome (BAC) library of 105 984 clones has been constructed in the vector pBeloBAC11 and organized in 3-dimension pools and high density membranes for screening by PCR and hybridization...
Genetic variability at 18 microsatellites was analysed on the basis of individual genotypes in five Spanish breeds of sheep – Churra, Latxa, Castellana, Rasa-Aragonesa and Merino -, with Awassi also being stud...
A selection experiment on litter size in the pig was carried on for seventeen generations in an Inra experimental herd. The founder population was made up of 10 males and 120 females from the Large White breed...
Records for birth and subsequent, monthly weights until weaning on beef calves of two breeds in a selection experiment were analysed fitting random regression models. Independent variables were orthogonal (Leg...
A sampling-based method for estimating the accuracy of estimated breeding values using an animal model is presented. Empirical variances of true and estimated breeding values were estimated from a simulated n-...
A fast, partly recursive deterministic method for calculating Identity-by-Descent (IBD) probabilities was developed with the objective of using IBD in Quantitative Trait Locus (QTL) mapping. The method combine...
Two methods of computing Monte Carlo estimators of variance components using restricted maximum likelihood via the expectation-maximisation algorithm are reviewed. A third approach is suggested and the performanc...
Genetic diversity at 13 equine microsatellite loci was compared in five endangered Spanish donkey breeds: Andaluza, Catalana, Mallorquina, Encartaciones and Zamorano-Leonesa. All of the equine microsatellites ...
Analysis of the genetic variation of an endangered population is an important component for the success of conservation. Animals from two local Romanian pig breeds, the Mangalitsa and Bazna, were analysed for ...
Genetic analysis for mastitis resistance was studied from two data sets. Firstly, risk factors for different mastitis traits, i.e. culling due to clinical or chronic mastitis and subclinical mastitis predicted fr...
Simulations were used to study the influence of model adequacy and data structure on the estimation of genetic parameters for traits governed by direct and maternal effects. To test model adequacy, several dat...
Markov chain Monte Carlo (MCMC) methods have been proposed to overcome computational problems in linkage and segregation analyses. This approach involves sampling genotypes at the marker and trait loci. Scalar...
This study was undertaken to determine the genetic structure, evolutionary relationships, and the genetic diversity among 18 local cattle breeds from Spain, Portugal, and France using 16 microsatellites. Heter...
A quantitative trait locus (QTL) analysis of growth and fatness data from a three-generation experimental cross between Meishan (MS) and Large White (LW) pig breeds is presented. Six boars and 23 F1 sows, the ...
Records were collected in an experimental herd over an 11-year period from purebred Charolais heifers (n = 351), cows (n = 615) and young entire bulls (n = 383). The objective of the study was to estimate the gen...
Classical selection for increasing prolificacy in sheep leads to a concomitant increase in its variability, even though the objective of the breeder is to maximise the frequency of an intermediate litter size ...
Individual loci of economic importance (QTL) can be detected by comparing the inheritance of a trait and the inheritance of loci with alleles readily identifiable by laboratory methods (genetic markers). Data ...
Meta-analysis of information from quantitative trait loci (QTL) mapping experiments was used to derive distributions of the effects of genes affecting quantitative traits. The two limitations of such informati...
In 1996, Popescu et al. published the Texas standard nomenclature of the bovine karyotype in which 31 marker genes, already mapped in man, were chosen to permit unambiguous identification and numbering of each bo...
Genetic parameters of eventing horse competitions were estimated. About 13 000 horses, 30 000 annual results during 17 years and 110 000 starts in eventing competitions during 8 years were recorded. The measur...
The inverse of the gametic covariance matrix between relatives, G-1, for a marked quantitative trait locus (QTL) is required in best linear unbiased prediction (BLUP) of breeding values if marker data are availab...
A fundamental issue in quantitative trait locus (QTL) mapping is to determine the plausibility of the presence of a QTL at a given genome location. Bayesian analysis offers an attractive way of testing alterna...
The attainment of a specific mature body size is one of the most fundamental differences among species of mammals. Moreover, body size seems to be the central factor underlying differences in traits such as gr...
X and Y specific probes were identified in order to apply the fluorescent in situ hybridization (FISH) technique to bovine spermatozoa. For Y chromosome detection, the BRY4a repetitive probe, covering three quart...
cDNA clones from a pig granulosa cell cDNA library were isolated by differential hybridisation for follicle stimulating hormone (FSH) regulation in granulosa cells in a previous study. The clones that did not ...
A white heifer ("Snow") was born in 1991 from coloured registered Jersey parents. She produced six calves sired by coloured Jersey bulls: three white bull calves, two white heifer calves, and one coloured bull...
The relationship between type traits and longevity was studied in the French Holstein breed using a survival analysis model. In this model, the phenotypic value adjusted for systematic fixed effects, the estim...
A Monte Carlo simulation was used to investigate the potential of Marker Assisted Selection (MAS) in a multiple-trait situation. Only additive effects were considered. The base population was assumed to be in ...
The testing of Bayesian point null hypotheses on variance component models have resulted in a tough assignment for which no clear and generally accepted method exists. In this work we present what we believe i...
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Genetics Selection Evolution