A5083829767- Genetic and phenotypic traits in livestock
- Agricultural and Food Production Studies
- Genetic Mapping and Diversity in Plants and Animals
- Effects of Environmental Stressors on Livestock
- Brucella: diagnosis, epidemiology, treatment
- Genetics and Plant Breeding
- Genetic diversity and population structure
- Child Nutrition and Water Access
- Silkworms and Sericulture Research
- Plant and soil sciences
- Animal Behavior and Welfare Studies
- Food Security and Health in Diverse Populations
- Animal Genetics and Reproduction
- Marine and coastal ecosystems
- History and Politics in Latin America
- Galectins and Cancer Biology
- Ruminant Nutrition and Digestive Physiology
- Rabbits: Nutrition, Reproduction, Health
- Marine Biology and Ecology Research
- Animal Disease Management and Epidemiology
- Animal Nutrition and Physiology
- Business, Education, Mathematics Research
- Business, Innovation, and Economy
- Natural Products and Biological Research
- Epigenetics and DNA Methylation
Universidade Federal de Santa Catarina
2024
Tilburg University
2024
Colombian Corporation for Agricultural Research - AGROSAVIA
2009-2023
Hospital General De Segovia
2020
Fundación Pro Salud y Medio Ambiente
2017
Ambiente Italia (Italy)
2017
Institut de Ciències del Mar
2012-2015
Institut Català de Ciències del Clima
2012-2015
Universidad de Sevilla
2008-2012
Hospital Universitario Virgen Macarena
2012
Cattle have been invaluable for the transition of human society from nomadic hunter-gatherers to sedentary farming communities throughout much Europe, Asia and Africa since earliest domestication cattle more than 10,000 years ago. Although current understanding relationships among ancestral populations remains limited, is thought occurred on two or three occasions, giving rise taurine (Bos taurus) indicine indicus) species that share aurochs primigenius) as common ancestor ~250,000 Indicine...
Abstract We investigated the effects of an increase in dissolved CO2 on microbial communities Mediterranean Sea during two mesocosm experiments contrasting seasons: winter, at peak annual phytoplankton bloom, and summer, under low nutrient conditions. The included treatments with acidification addition, combinations two. followed ocean (OA) abundance main groups microorganisms (diatoms, dinoflagellates, nanoeukaryotes, picoeukaryotes, cyanobacteria, heterotrophic bacteria) bacterial...
The introduction of Iberian cattle in the Americas after Columbus' arrival imposed high selection pressures on a limited number animals over brief period time. Knowledge genomic regions selected during this process may help enhancing climatic resilience and sustainable animal production. We first determined taurine indicine contributions to structure modern Creole cattle. Second, we inferred their demographic history using approximate Bayesian computation (ABC), linkage disequilibrium (LD)...
Ticks have a negative effect on dairy and beef cattle production systems around the world, with concomitant risk they represent for transmission of some important infectious diseases. Colombian breeds are distributed across different agroecological regions exposed to environmental challenges. In humid warmer climates such as those from tropics, tick burden heat stress factors that can compromise livestock performance. The aim this study was characterize in four evaluate relationship between...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 483:67-84 (2013) - DOI: https://doi.org/10.3354/meps10291 Adaptations feast and famine in different strains of marine heterotrophic dinoflagellates Gyrodinium dominans Oxyrrhis marina Albert Calbet1,*, Stamatina Isari1, Rodrigo Andrés Martínez1, Enric Saiz1, Susana Garrido2, Janna Peters3, Rosa Maria Borrat1,...
The genetic structure of 4 Colombian Creole cattle breeds, namely, Costeño con Cuernos, Blanco Orejinegro (BON), Romosinuano (ROMO), and Sanmartinero (SM), was studied with an analysis the available pedigree data. comparison between effective number founders (f(e)) ancestors (f(a)) revealed a decrease in variation that rather important for ROMO San Martinero which had lowest f(a)/f(e) ratios (0.34 0.53, respectively). All breeds showed similar values equivalent generations traced, ranging...
Genotypic and phenotypic data of 1,562 animals were analyzed to find genomic regions that potentially influence the birth weight (BW), weaning at seven months age (WW) yearling (YW) Colombian Brahman cattle, with genotyping conducted using Illumina Bead chip array 74,669 SNPs. A Single Step Genomic BLUP (ssGBLP), approach was used estimate proportion variance explained by each marker. Multiple scattered across genome found weights different ages, also dependent on trait component (direct or...
In Colombia the sheep production systems are managed under extensive conditions and mainly correspond to peasant so their genetic management has led increased homozygosity hence productivity loss. The aim of this study was determine diversity in 549 individuals corresponding 13 breeds Colombia, using a panel 11 microsatellite molecular markers. One hundred fifty seven alleles were found (average 14.27 alleles/locus), with range observed expected heterozygosity from 0.44 0.84 0.67 0.86,...
Summary Enhancing climate resilience and sustainable production for animals in harsh environments are important goals the livestock industry given predicted impacts of change. Rapid adaptation to extreme climatic conditions has already been imposed on species, including those exported after Columbus's arrival Americas. We compared methylomes two Creole cattle breeds living tropical with their putative Spanish ancestors understand epigenetic mechanisms underlying rapid a domestic species new...
Summary The 3′ untranslated region (3′ UTR) of the bovine natural resistance‐associated macrophage gene ( NRAMP1 or SLC11A1 ) was genotyped in Colombian Creole Blanco Orejinegro (BON) Bos taurus (n = 140) and Zebu Brahman indicus (Z) 20) cattle their crosses (BON × [B Z] [n 10]; BON [Z B] 10]), animals from a Holstein (H B) 10) cross. Direct sequencing single‐strand conformation polymorphism analysis (SSCP) helped detecting polymorphic behaviour. association between resistance to brucellosis...
The resistance/susceptibility of selected cattle breeds to brucellosis was evaluated in an F1 population generated by crossing animals classified as resistant (R) and susceptible (S) (R x R, R S, S S) based on challenges vitro vivo. association between single nucleotide polymorphisms identified the coding region Slc11a1 gene estimated. trait resistance or susceptibility brucellosis, a challenge vitro, showed high heritable component terms additive genetic variance (h² = 0.54 ± 0.11). In...
Abstract. The relationship between 17 body and 8 udder measurements phenotypic dairy performance were studied using information from 280 Spanish Assaf ewes 2 to 4 years old belonging 18 flocks. influence of the environmental area on traits was assessed by fitting a fixed model including flock effect age effect. A factor analysis also carried out determine lowest number independent factors that account for most variation in traits. statistically significant trait predicted breeding value...
Background: indigenous breeds are important for poor farmers because of their natural selection against harsh environments and adaptation to regional conditions. However, inbreeding sheep populations has increased in Colombia due indiscriminate cross-breeding with foreign animals lack reproductive controls, subsequent loss productivity, which poses a great risk the conservation valuable genes. Objective: determine genetic diversity Colombian by using panel 10 microsatellite molecular...
The aim of this study was to perform a genome wide association for the coefficient adaptability, heat tolerance coefficient, age at first calving and interval, using 58,868 57,482 single nucleotide polymorphisms obtained from 1262 Blanco Orejinegro 742 Sanmartinero individuals, implementing singlestep-genomic-BLUP (ssGBLUP) methodology.A total 25 11 genomic regions in BON SM were associated with traits evaluated.In these regions; several genes involved regulation reproduction adaptability...
The Lulo or naranjilla (Solanum quitoense Lam.) and the tree tomato tamarillo betaceum Cav. Sendt.) are both Andean tropical fruit species with high nutritional value potential for becoming premium products in local export markets. Herein, we present a report on genetic characterization of 62 accessions lulos (n = 32) tomatoes 30) through use PCR-based markers developed from single-copy conserved orthologous genes (COSII) other Solanaceae (Asterid) species. We successfully PCR amplified set...
The linkage disequilibrium (LD) between molecular markers affects the accuracy of genome-wide association studies and genomic selection application. High-density genotyping platforms allow identifying genotype thousands single nucleotide polymorphisms (SNPs) distributed throughout animal genomes, which increases resolution LD evaluations. This study evaluated distribution minor allele frequencies (MAF) level in Colombian Creole cattle breeds Blanco Orejinegro (BON) Romosinuano (ROMO) using a...
Growth traits are economically important characteristics for the genetic improvement of local cattle breeds. Genome-wide association studies (GWAS) provide valuable information to enhance understanding on genetics complex traits. The aim this study was perform a GWAS identify genomic regions and genes associated birth weight, weaning weight adjusted 240 days, 16 months, 24 months in Romosinuano (ROMO) Blanco Orejinegro (BON) cattle. A single-step genomic-BLUP implemented using 596 BON 569...
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 56:93-108 (2009) - DOI: https://doi.org/10.3354/ame01319 Grazing impact of natural populations ciliates and dinoflagellates in a river-influenced continental shelf Cristian A. Vargas*, Rodrigo Martínez Research Unit, Environmental Sciences Center EULA Chile, Universidad de Concepción, PO Box 160-C, Chile *Email:...
Covariance components and genetic parameters were estimated for birth weight (BiW); adjusted weights at 4, 7, 12, 18 mo; ADG between 0 4 mo, 7 12 mo. Additionally, reproductive traits, calving interval, age first analyzed, together with traits measured by ultrasound: loin eye area, deep fat mean, back fat, rump fat. Analyses performed using an animal model, considering the fixed effects of farm ( = 37), year month birth, sex, number (1 to 7), season (dry rainy seasons), region (North Coast,...
Summary Although in the cow genetic resistance to brucellosis has been previously attributed Slc11A1 gene encoding Nramp1 protein, none of mutations described date seems be cause. To able associate another polymorphism resistance, we characterized and identified different breeds Bos taurus indicus , six new variants among a total 11 single nucleotide mutations, which five occurred coding sequence (three are missense mutations), one promoter region introns. The allelic genotypic frequencies...
Summary Inbreeding generates covariances between additive and dominance effects (breeding values deviations). In this work, we developed applied models for estimation of genetic variances their covariance, a model that call “full dominance,” from pedigree phenotypic data. Estimates with such as presented here are very scarce both in livestock wild genetics. First, estimated pedigree‐based condensed probabilities identity using recursion. Second, an equivalent linear which variance components...
Whole genome selection represents an important tool for improving parameters related to the production of livestock. In order build genomic indexes within a particular breed, it is identify polymorphisms that have most significant association with desired trait. A genome-wide marker approach based on Illumina BovineSNP50 BeadChip(TM) was used regions affecting birth weight (BW), weaning (WW), and daily gain (DWG) in purebred crossbred creole cattle populations. We genotyped 654 individuals...