A5082606520- Genetic and phenotypic traits in livestock
- Genetic Mapping and Diversity in Plants and Animals
- Agricultural and Food Production Studies
- Animal Genetics and Reproduction
- Livestock Farming and Management
- Meat and Animal Product Quality
- Cancer-related molecular mechanisms research
- Genetics and Plant Breeding
- Sustainable Agricultural Systems Analysis
- Reproductive Physiology in Livestock
- Historical and socio-economic studies of Spain and related regions
- Animal Disease Management and Epidemiology
- Milk Quality and Mastitis in Dairy Cows
- Business, Innovation, and Economy
- Wheat and Barley Genetics and Pathology
- Animal Diversity and Health Studies
- Animal Nutrition and Physiology
- Wine Industry and Tourism
- Invertebrate Taxonomy and Ecology
- Latin American rural development
- Brucella: diagnosis, epidemiology, treatment
- Water Resource Management and Quality
- Silkworms and Sericulture Research
- Plant and soil sciences
- Animal Law and Welfare
Colombian Corporation for Agricultural Research - AGROSAVIA
2018-2023
Universitat Autònoma de Barcelona
2014-2019
Universidad de Antioquia
2009-2012
Transmission ratio distortion (TRD) is the departure from expected Mendelian in offspring, a poorly investigated biological phenomenon livestock species. Given current availability of specific parametric methods for analysis segregation data, this study focused on screening TRD 602 402 single nucleotide polymorphisms covering all autosomal chromosomes seven Spanish beef cattle breeds. On average, 0.13% (n = 786) and 0.01% 29) genetic markers evidenced sire- or dam-specific respectively....
The availability of SNP chips for massive genotyping has proven to be useful genetically characterize populations domestic cattle and assess their degree divergence. In this study, the Illumina BovineHD BeadChip array was used describe genetic variability divergence among 7 important autochthonous Spanish beef breeds. within-breed diversity, measured as marker expected heterozygosity, around 0.30, similar other European analysis molecular variance revealed that 94.22% total explained by...
Procedures for the detection of signatures selection can be classified according to source information they use reject null hypothesis absence selection. Three main groups tests identified that are based on: (1) analysis site frequency spectrum, (2) study extension linkage disequilibrium across length haplotypes surround polymorphism, and (3) differentiation among populations. The aim this was compare performance a subset these procedures by using dataset on seven Spanish autochthonous beef...
Demographic and pedigree analyses describe the structure dynamics of livestock populations. We studied information recorded in herdbooks Asturiana de los Valles (AV; N = 458,806), Avileña-Negra Ibérica (ANI; 204,623), Bruna dels Pirineus (BP; 62,138), Morucha (Mo; 65,350), Pirenaica (Pi; 217,428), Retinta (Re; 135,300), Rubia Gallega (RG; 235,511) beef breeds from their creation until 2009. All have increased number registered cows recent years. In all breeds, herds do not behave as isolated...
Linkage disequilibrium (LD) and persistence of phase are fundamental approaches for exploring the genetic basis economically important traits in cattle, including identification QTL genomic selection estimation effective population size () to determine training populations. In this study, we have used Illumina BovineHD chip 168 trios 7 Spanish beef cattle breeds obtain an overview magnitude LD through physical distance between markers. Also, estimated time divergence based on calculated past...
In organisms with sexual reproduction, genetic diversity and genome evolution are governed by meiotic recombination caused crossing-over, which is known to vary within the genome. this study, we propose a simple method estimate rate that makes use of persistency linkage disequilibrium –LD- phase among closely related populations. The biological material comprised 171 triplets (sire/dam/offspring) from seven populations autochthonous beef cattle in Spain (Asturiana de los Valles,...
The Spanish local beef cattle breeds have most likely common origin followed by a process of differentiation. This particular historical evolution has probably left detectable signatures in the genome. objective this study was to identify genomic regions associated with differentiation processes seven autochthonous populations (Asturiana de los Valles (AV), Avileña-Negra Ibérica (ANI), Bruna dels Pirineus (BP), Morucha (Mo), Pirenaica (Pi), Retinta (Re) and Rubia Gallega (RG)). BovineHD 777K...
The Romosinuano cattle breed is one of the most important Creole genetic resources in Colombia, and interesting traits like adaptation or reproductive efficiency have promoted its use different countries America. To consolidate genealogical historical records, review very first yield records this population was used to reconstruct genealogy since animals incorporated vivo germplasm bank estimate demographic parameters. complete comprises 17,136 with 5.8 years generation interval for two...
Contextualización: el biol es un abono orgánico líquido, basado en la fermentación anaerobia de materia orgánica, que actúa como fuente nutrientes y microorganismos, estimulante del desarrollo vegetal mejorador calidad suelo. Su aplicación pasturas podría contribuir a incrementar producción biomasa reducir fertilización química impacto negativo sobre Vacío conocimiento: existe desconocimiento por parte productores región Caribe Colombia cuanto al aprovechamiento coproductos estiércol animal...
This study investigated the potential application of genomic selection under a multi-breed scheme in Spanish autochthonous beef cattle populations using simulation that replicates structure linkage disequilibrium obtained from sample 25 triplets sire/dam/offspring per population and BovineHD Beadchip. Purebred combined reference sets were used for evaluation several scenarios different genetic architecture trait investigated. The single-breed evaluations yielded highest within-breed...
The objective of this study was to typify ovine and/or caprine production systems in Cesar department, the Colombian Caribbean region. Farmers from 25 municipalities (n = 360) were surveyed about different areas animal production. most influential variables obtained through a Factor Analysis Mixed Data (FAMD) and these results used run hierarchical cluster analysis (HCA), followed by statistical comparison. Three clusters (PS) identified: traditional system – TPS (84.9%), mixed - MPS...
El objetivo de este estudio fue determinar las frecuencias alélicas y fenotípicas del polimorfismo nucleótido simple (SNP) exón VI gen Pit-1 su asociación con características tipo, producción leche días abiertos. Se muestrearon un total 390 vacas Holstein departamento Antioquia (Colombia), genotipificadas para el Hinfi por PCR-RFLP. encontraron los genotipos AA, AB BB frecuencia 0,03, 0,43 0,53, respectivamente. alelo A tuvo 0,35 presencia en genotipo se asoció mayor leche, profundidad la...
El objetivo de este trabajo fue evaluar el patrón desequilibrio ligamiento a lo largo del genoma en siete poblaciones españolas autóctonas vacuno carne (Asturiana los Valles, Avileña Negra-Ibérica, Bruna dels Pirineus, Morucha, Pirenaica, Retinta y Rubia Gallega). Para ello, se utilizó BovineHD BeadChip con que genotiparon 171 tríos formados por individuo/padre/madre. Después filtrado, dispuso 573.134 SNP. A partir esta información definió un parámetro mide medio regiones 1Mb cada una las...
Las poblaciones ovinas de la Región Caribe colombiana se caracterizan por tener una alta heterogeneidad fenotípica debido principalmente al uso animales criollos en cruzamiento con razas exóticas. El presente estudio tuvo como objetivo estimar diver-sidad genética y estructura poblacional ovinos esta región. Se seleccionaron 459 26 granjas 19 municipios. muestras ADN fueron genotipadas el chip ovino baja densidad (15K). realizaron análisis varianza molecular, diversidad poblacional. A nivel...