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Article
Open AccessUncertainty in the mating strategy of honeybees causes bias and unreliability in the estimates of genetic parameters
Breeding queens may be mated with drones that are produced by a single drone-producing queen (DPQ), or a group of sister-DPQs, but often only the dam of the DPQ(s) is reported in the pedigree. Furthermore, dat...
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Article
Open AccessGenome-wide detection of positive and balancing signatures of selection shared by four domesticated rainbow trout populations (Oncorhynchus mykiss)
Evolutionary processes leave footprints along the genome over time. Highly homozygous regions may correspond to positive selection of favorable alleles, while maintenance of heterozygous regions may be due to ...
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Article
Open AccessGenetic parameters, trends, and inbreeding in a honeybee breeding program for royal jelly production and behavioral traits
An economically sustainable production of royal jelly (RJ) requires the use of genetics specifically improved for this very demanding trait. The French Royal Jelly Association has developed since 2010 a select...
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Article
Open AccessGenetic architecture of acute hyperthermia resistance in juvenile rainbow trout (Oncorhynchus mykiss) and genetic correlations with production traits
Selective breeding is a promising solution to reduce the vulnerability of fish farms to heat waves, which are predicted to increase in intensity and frequency. However, limited information about the genetic ar...
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Article
Open AccessWhole‐genome sequencing identifies interferon-induced protein IFI6/IFI27-like as a strong candidate gene for VNN resistance in European sea bass
Viral nervous necrosis (VNN) is a major disease that affects European sea bass, and understanding the biological mechanisms that underlie VNN resistance is important for the welfare of farmed fish and sustaina...
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Protocol
Genoty**, the Usefulness of Imputation to Increase SNP Density, and Imputation Methods and Tools
Imputation has become a standard practice in modern genetic research to increase genome coverage and improve accuracy of genomic selection and genome-wide association study as a large number of samples can be ...
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Article
Open AccessGenetic architecture and genomic selection of fatty acid composition predicted by Raman spectroscopy in rainbow trout
In response to major challenges regarding the supply and sustainability of marine ingredients in aquafeeds, the aquaculture industry has made a large-scale shift toward plant-based substitutions for fish oil a...
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Article
Open AccessA simulation study of a honeybee breeding scheme accounting for polyandry, direct and maternal effects on colony performance
Efficient breeding programs are difficult to implement in honeybees due to their biological specificities (polyandry and haplo-diploidy) and complexity of the traits of interest, with performances being measur...
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Article
Open AccessGenetic determinism of spontaneous masculinisation in XX female rainbow trout: new insights using medium throughput genoty** and whole-genome sequencing
Rainbow trout has a male heterogametic (XY) sex determination system controlled by a major sex-determining gene, sdY. Unexpectedly, a few phenotypically masculinised fish are regularly observed in all-female farm...
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Article
Open AccessGenome-wide estimates of genetic diversity, inbreeding and effective size of experimental and commercial rainbow trout lines undergoing selective breeding
Selective breeding is a relatively recent practice in aquaculture species compared to terrestrial livestock. Nevertheless, the genetic variability of farmed salmonid lines, which have been selected for several...
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Article
Open AccessConstruction of a large collection of small genome variations in French dairy and beef breeds using whole-genome sequences
In recent years, several bovine genome sequencing projects were carried out with the aim of develo** genomic tools to improve dairy and beef production efficiency and sustainability.
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Article
Open AccessInsights into the genetic variation of maternal behavior and suckling performance of continental beef cows
In beef cattle, maternal care is critical for calf survival and growth. Our objective was to evaluate the major sources of additive genetic variation in maternal behavior and suckling performance in two geneti...
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Article
Open AccessDetection of quantitative trait loci for maternal traits using high-density genotypes of Blonde d’Aquitaine beef cattle
The genetic determinism of the calving and suckling performance of beef cows is little known whereas these maternal traits are of major economic importance in beef cattle production systems. This paper aims to...
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Article
Open AccessEconomic aspects of implementing genomic evaluations in a pig sire line breeding scheme
Replacing pedigree-based BLUP evaluations by genomic evaluations in pig breeding schemes can result in greater selection accuracy and genetic gains, especially for traits with limited phenotypes. However, this...
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Article
Open AccessHigh-density marker imputation accuracy in sixteen French cattle breeds
Genoty** with the medium-density Bovine SNP50 BeadChip® (50K) is now standard in cattle. The high-density BovineHD BeadChip®, which contains 777 609 single nucleotide polymorphisms (SNPs), was developed in 2010...
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Article
Genetic control of multiple births in low ovulating mammalian species
In mammals, litter size is a highly variable trait. Some species such as humans or cattle are monotocous, with one or sometimes two newborns per birth, whereas others, the polytocous species such as mice or pi...
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Article
Investigation of three strategies for an international genetic evaluation of beef cattle weaning weight
Weaning weights from 83 389 Limousin calves born between 1993 and 2002 in France and the Trans-Tasman block (Australia/New Zealand) were analysed to compare different strategies for running an international ge...
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Article
Should genetic groups be fitted in BLUP evaluation? Practical answer for the French AI beef sire evaluation
Some analytical and simulated criteria were used to determine whether a priori genetic differences among groups, which are not accounted for by the relationship matrix, ought to be fitted in models for genetic ev...
