Search results for " local cattle"

showing 6 items of 6 documents

Genome-wide detection of signatures of selection in three Valdostana cattle populations

2020

International audience; The Valdostana is a local dual purpose cattle breed developed in Italy. Three populations are recognized within this breed, based on coat colour, production level, morphology and temperament: Valdostana Red Pied (VPR), Valdostana Black Pied (VPN) and Valdostana Chestnut (VCA). Here, we investigated putative genomic regions under selection among these three populations using the Bovine 50K SNP array by combining three different statistical methods based either on allele frequencies (F-ST) or extended haplotype homozygosity (iHS and Rsb). In total, 8, 5 and 8 chromosomes harbouring 13, 13 and 16 genomic regions potentially under selection were identified by at least tw…

CoatCandidate geneMeatGenotypelocal cattle population[SDV]Life Sciences [q-bio]Quantitative Trait LociBovine BeadChip 50K; candidate genes; local cattle populations; selection signaturesRuns of HomozygosityBiologyBreedingGenomePolymorphism Single Nucleotideselection signatures03 medical and health sciencesFood AnimalsGene FrequencyAnimalsSelection GeneticGeneAllele frequencySelection (genetic algorithm)Genetic Association Studies030304 developmental biology2. Zero hungerGenetics0303 health sciencesGenomeBehavior AnimalHomozygote0402 animal and dairy sciencecandidate geneBovine BeadChip 50K04 agricultural and veterinary sciencesGeneral Medicine040201 dairy & animal sciencelocal cattle populationsMilkPhenotypeHaplotypesAnimal Science and ZoologyCattlecandidate genesSNP array
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Genome-wide characterization of local cattle breeds from central and western Mediterranean

2017

Following-up on previous studies that investigated genetic relationships among several world-wide cattle breeds using genome-wide SNP data, we focus here on the central and western part of the Mediterranean. Notably, 50K genotypes from 30 Marismeña (Spain); 24 Guelmoise (Algeria); 46 Brune de l’Atlas Fauve, 15 Brune de l’Atlas Grise, and 15 Blonde du Cap (Tunisia); 29 Modicana and 30 Cinisara (Sicily); 24 Podolica Italiana (Southern continental Italy); 34 Chianina and 24 Romagnola (Central Italy); 23 Modenese, 24 Reggiana, 23 Alpine Grey and 50 Pezzata Rossa Italiana (Northern Italy); 50 Bruna Italiana and 50 Frisona Italiana were considered. When included in a world-wide dataset, the three…

Settore AGR/17 - Zootecnica Generale E Miglioramento GeneticoSNPs local cattle Mediterranean diversity
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Genomic inbreeding estimation in small populations: evaluation of runs of homozygosity in three local dairy cattle breeds

2016

In the local breeds with small population size, one of the most important problems is the increase of inbreeding coefficient (F). High levels of inbreeding lead to reduced genetic diversity and inbreeding depression. The availability of high-density single nucleotide polymorphism (SNP) arrays has facilitated the quantification of F by genomic markers in farm animals. Runs of homozygosity (ROH) are contiguous lengths of homozygous genotypes and represent an estimate of the degree of autozygosity at genome-wide level. The current study aims to quantify the genomic F derived from ROH (F-ROH) in three local dairy cattle breeds. F-ROH values were compared with F estimated from the genomic relati…

0301 basic medicineSingle-nucleotide polymorphismRuns of HomozygosityBiologyPolymorphism Single NucleotideSF1-1100local cattle breedSettore AGR/17 - Zootecnica Generale E Miglioramento Genetico03 medical and health sciencesAnimal sciencegenomic inbreeding; local cattle breeds; runs of homozygosity; Animal Science and ZoologyGenetic variationInbreeding depressionAnimalsInbreedinglocal cattle breedsDairy cattleGeneticsGenetic diversityruns of homozygositygenomic inbreedingHomozygote0402 animal and dairy scienceGenetic Variation04 agricultural and veterinary sciences040201 dairy & animal scienceBreedAnimal culture030104 developmental biologyItalyCattleFemaleAnimal Science and ZoologyInbreedingAnimal
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Conservation status and historical relatedness of Italian cattle breeds

2018

Background In the last 50 years, the diversity of cattle breeds has experienced a severe contraction. However, in spite of the growing diffusion of cosmopolite specialized breeds, several local cattle breeds are still farmed in Italy. Genetic characterization of breeds represents an essential step to guide decisions in the management of farm animal genetic resources. The aim of this work was to provide a high-resolution representation of the genome-wide diversity and population structure of Italian local cattle breeds using a medium-density single nucleotide polymorphism (SNP) array. Results After quality control filtering, the dataset included 31,013 SNPs for 800 samples from 32 breeds. Ou…

0301 basic medicineIn situ conservation[SDV]Life Sciences [q-bio]Animals; Animals Domestic; Breeding; Cattle; Conservation of Natural Resources; Evolution Molecular; Genetics Population; Genome-Wide Association Study; Linkage Disequilibrium; Phylogeny; Population Density; Genetic Variation; Polymorphism Single Nucleotide;Italian Bovine Genetic VariabilityRuns of HomozygosityBreedingLinkage DisequilibriumSettore AGR/17 - Zootecnica Generale E Miglioramento GeneticoItalian cattle breeds Bovine Genetic Variability Bovine SNP Bovine Genomocs Markers Italian Bovine Genetic VariabilityConservation of Natural ResourceDomesticPhylogenylcsh:SF1-11002. Zero hungereducation.field_of_studyEcologySettore AGR/17 - ZOOTECNICA GENERALE E MIGLIORAMENTO GENETICOBiodiversity04 agricultural and veterinary sciencesGeneral MedicineSingle NucleotideItalyAnimals DomesticBovine SNPLivestockItalian cattle breeds Bovine Genetic VariabilityEcology Evolution Behavior and Systematics; Animal Science and Zoology; GeneticsInbreedingGenetic isolateResearch ArticleConservation of Natural Resourceslcsh:QH426-470EvolutionAnimals; Animals Domestic; Breeding; Cattle; Conservation of Natural Resources; Evolution Molecular; Genetics Population; Genome-Wide Association Study; Linkage Disequilibrium; Phylogeny; Population Density; Genetic Variation; Polymorphism Single NucleotidePopulationPopulationBiologyPolymorphism Single NucleotideBovine Genomocs MarkersEvolution Molecular03 medical and health sciencesBehavior and SystematicsSNP local cattle structureGenetic variationGeneticsAnimalsPolymorphismeducationEcology Evolution Behavior and SystematicsPopulation DensityGenetic diversityAnimalbusiness.industry0402 animal and dairy scienceAnimals; Animals Domestic; Breeding; Cattle; Conservation of Natural Resources; Evolution Molecular; Genetics Population; Genome-Wide Association Study; Linkage Disequilibrium; Phylogeny; Population Density; Genetic Variation; Polymorphism Single Nucleotide; Ecology Evolution Behavior and Systematics; Animal Science and Zoology; GeneticsMolecularGenetic VariationEcology Evolution Behavior and Systematic040201 dairy & animal sciencelcsh:GeneticsBiodiversity cattle ItalyGenetics Population030104 developmental biologyEvolutionary biologyCattleAnimal Science and Zoologylcsh:Animal culturebusinessGenome-Wide Association Study
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Genome-Wide Analysis Reveals Selection Signatures Involved in Meat Traits and Local Adaptation in Semi-Feral Maremmana Cattle

2021

The Maremmana cattle is an ancient Podolian-derived Italian breed raised in semi-wild conditions with distinctive morphological and adaptive traits. The aim of this study was to detect potential selection signatures in Maremmana using medium-density single nucleotide polymorphism array. Putative selection signatures were investigated combining three statistical approaches designed to quantify the excess of haplotype homozygosity either within (integrated haplotype score, iHS) or among pairs of populations (Rsb and XP-EHH), and contrasting the Maremmana with a single reference population composed of a pool of seven Podolian-derived Italian breeds. Overall, the three haplotype-based analyses …

0301 basic medicineCandidate geneMaremmanaQH426-470selection signaturesdiversitySettore AGR/17 - Zootecnica Generale E Miglioramento Genetico03 medical and health sciencesGeneticslocal cattle breedsenvironmental adaptationGeneGenetics (clinical)Selection (genetic algorithm)Original ResearchLocal adaptation2. Zero hungerbiology[SDV.BA]Life Sciences [q-bio]/Animal biologyHaplotype0402 animal and dairy science04 agricultural and veterinary sciencescandidate genes; diversity; environmental adaptation; local cattle breeds; selection signaturesbiology.organism_classification040201 dairy & animal science3. Good healthlocal cattle breeds selection signatures diversity candidate genes environmental adaptation030104 developmental biologyEvolutionary biologyMolecular MedicineAdaptationcandidate genes diversity environmental adaptation local cattle breeds selection signaturescandidate genesFunction (biology)
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BOVITA: a first overview on genome-wide genetic diversity of Italian autochthonous cattle breeds

2017

Analysis of genomic data is increasingly becoming part of the livestock industry and is an invaluable resource for effective management of breeding programs in small populations. The recent availability of genome-wide SNP panels allows providing background information concerning genome structure in domestic animals, opening new perspectives to livestock genetics. BOVITA was established to join local efforts and resources for the genomic characterization of Italian local cattle breeds. Despite the growing diffusion of some cosmopolite specialized breeds, several autochthonous breeds are still bred in Italy. The main aim of the BOVITA is to investigate the genomic structure of Italian local c…

Settore AGR/17 - Zootecnica Generale E Miglioramento GeneticoSNPs genetic diversity local cattle breeds
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