A5078492354- Genetic and phenotypic traits in livestock
- Genetic diversity and population structure
- Aquaculture disease management and microbiota
- Genetic Mapping and Diversity in Plants and Animals
- Aquaculture Nutrition and Growth
- Identification and Quantification in Food
- Parasite Biology and Host Interactions
- Livestock and Poultry Management
- Livestock Farming and Management
- Advanced Proteomics Techniques and Applications
- Fish Ecology and Management Studies
- Silkworms and Sericulture Research
- Chromosomal and Genetic Variations
- Gas Sensing Nanomaterials and Sensors
- Mercury impact and mitigation studies
- Evolution and Genetic Dynamics
- Genetics, Bioinformatics, and Biomedical Research
- Genomics and Phylogenetic Studies
- Marine Bivalve and Aquaculture Studies
- Reproductive biology and impacts on aquatic species
- Water Quality Monitoring Technologies
- Mycobacterium research and diagnosis
- Genetics and Plant Breeding
- Agricultural Systems and Practices
- ZnO doping and properties
University of Chile
2014-2021
Benchmark Research (United States)
2019
Universidade Federal de Goiás
2017
Instituto Tecnológico del Salmón
2014-2017
Salmon Rickettsial Syndrome (SRS) caused by Piscirickettsia salmonis is a major disease affecting the Chilean salmon industry. Genomic selection (GS) method wherein genome-wide markers and phenotype information of full-sibs are used to predict genomic EBV (GEBV) candidates expected have increased accuracy response over traditional pedigree based Best Linear Unbiased Prediction (PBLUP). Widely GS methods such as BLUP (GBLUP), SNPBLUP, Bayes C Bayesian Lasso may perform differently with...
Piscirickettsia salmonis is one of the main infectious diseases affecting coho salmon (Oncorhynchus kisutch) farming, and current treatments have been ineffective for control this disease. Genetic improvement P. resistance has proposed as a feasible alternative disease in farmed fish. Genotyping by sequencing (GBS) strategies allow genotyping hundreds individuals with thousands single nucleotide polymorphisms (SNPs), which can be used to perform genome wide association studies (GWAS) predict...
A considerable number of single nucleotide polymorphisms (SNPs) are required to elucidate genotype-phenotype associations and determine the molecular basis important traits. In this work, we carried out de novo SNP discovery accounting for both genome duplication genetic variation from American European salmon populations. total 9 736 473 nonredundant SNPs were identified across a set 20 fish by whole-genome sequencing. After applying six bioinformatic filtering steps, 200 K selected develop...
Pisciricketssia salmonis is the causal agent of Salmon Rickettsial Syndrome (SRS), which affects salmon species and causes severe economic losses. Selective breeding for disease resistance represents one approach controlling SRS in farmed Atlantic salmon. Knowledge concerning architecture trait needed before deciding on most appropriate to enhance artificial selection P. The purpose study was dissect genetic variation this pathogen 2,601 smolts were experimentally challenged against by means...
Abstract Salmonid rickettsial syndrome (SRS), caused by the intracellular bacterium Piscirickettsia salmonis, is one of main diseases affecting rainbow trout (Oncorhynchus mykiss) farming. To accelerate genetic progress, genomic selection methods can be used as an effective approach to control disease. The aims this study were: (i) compare accuracy estimated breeding values using pedigree-based best linear unbiased prediction (PBLUP) with BLUP (GBLUP), single-step GBLUP (ssGBLUP), Bayes C,...
Sea lice infestations caused by Caligus rogercresseyi are a main concern to the salmon farming industry due associated economic losses. Resistance this parasite was shown have low moderate genetic variation and its architecture suggested be polygenic. The aim of study compare accuracies breeding value predictions obtained with pedigree-based best linear unbiased prediction (P-BLUP) methodology against different genomic approaches: BLUP (G-BLUP), Bayesian Lasso, Bayes C. To achieve this, 2404...
Fillet yield (FY) and harvest weight (HW) are economically important traits in Nile tilapia production. Genetic improvement of these traits, especially for FY, lacking, due to the absence efficient methods measure without sacrificing fish use information from relatives selection. However, genomic could be used by selection improve that difficult directly candidates, as case FY. The objectives this study were: (i) perform genome-wide association studies (GWAS) dissect genetic architecture FY...
Abstract Selective breeding and genetic improvement have left detectable signatures on the genomes of domestic species. The elucidation such is fundamental for detecting genomic regions biological relevance to domestication improving management practices. In aquaculture, was carried out independently in different locations worldwide, which provides opportunities study parallel effects genome individuals that been selected similar traits. this study, we aimed detect potential two independent...
Nile tilapia (Oreochromis niloticus) is one of the most produced farmed fish in world and represents an important source protein for human consumption. Farmed populations are increasingly based on genetically improved stocks, which have been established from admixed populations. To date, there scarce information about population genomics tilapia, assessed by dense single nucleotide polymorphism (SNP) panels. The patterns linkage disequilibrium (LD) may affect success genome-wide association...
Piscirickettsia salmonis is the etiologic agent of salmon rickettsial syndrome (SRS) and responsible for considerable economic losses in aquaculture. The bacterium affects coho (CS; Oncorhynchus kisutch), Atlantic (AS; Salmo salar), rainbow trout (RT; mykiss) several countries, including Norway, Canada, Scotland, Ireland, Chile. We used Bayesian genome-wide association study analyses to investigate genetic architecture resistance P. farmed populations these species. Resistance SRS was...
Abstract Thirty A tlantic salmon, S almo salar L ., with low corporal condition relative to other fish present in the culture system, were sampled from a freshwater recirculation pisciculture located C hile. The most characteristic signs and lesions cachexia presence of multiple greyish‐white granulomas within internal organs. external lesions, along microscopic, histologic biochemical findings, consistent mycobacteriosis. identification M ycobacterium salmoniphilum as causal agent was...
Sea lice (Caligus rogercresseyi) is an ectoparasite which causes major production losses in the salmon aquaculture industry worldwide. Atlantic (Salmo salar) and rainbow trout (Oncorhynchus mykiss) are two of most susceptible salmonid species to sea infestation. The objectives this study were to: (1) identify genomic regions associated with resistance Caligus rogercresseyi by performing single-step Genome-Wide Association studies (ssGWAS), (2) candidate genes related trait variation based on...
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ABSTRACT Piscirickettsia salmonis is one of the main infectious diseases affecting coho salmon ( Oncorhynchus kisutch ) farming. Current treatments have been ineffective for control disease. Genetic improvement P. resistance has proposed as a feasible alternative this disease in farmed fish. Genotyping by sequencing (GBS) strategies allow genotyping hundreds individuals with thousands single nucleotide polymorphisms (SNPs), which can be used to perform genome wide association studies (GWAS)...
The use of next-generation sequencing (NGS) technologies provides a great volume genome sequence data even for non-model species. development microsatellite markers using these is relatively quick and easy process. Dipteryx alata Vogel (Fabaceae) an arboreal species from the Cerrado biome considered important plant genetic resource. Here, we report D. NGS data. DNA samples four individuals were sequenced Illumina MiSeq platform high-quality reads assembled into contigs sequence....
ABSTRACT Fillet yield (FY) and harvest weight (HW) are economically important traits in Nile tilapia production. Genetic improvement of these traits, especially for FY, lacking, due to the absence efficient methods measure without sacrificing fish use information from relatives selection. However, genomic could be used by selection improve that difficult directly candidates, as case FY. The objectives this study were: (i) perform genome-wide association studies (GWAS) dissect genetic...
Abstract Sea lice ( Caligus rogercresseyi ) are ectoparasites that cause major production losses in the salmon aquaculture industry worldwide. Atlantic Salmo salar and rainbow trout Oncorhynchus mykiss two of most susceptible salmonid species to sea infestation. The goal this study was identify common candidate genes involved resistance against lice. For this, 2,626 2,643 from breeding populations were challenged with genotyped a 50k 57k SNP panel. We ran independent genome-wide association...
Abstract Nile tilapia ( Oreochromis niloticus ) is one of the most produced farmed fish in world and represents an important source protein for human consumption. Farmed populations are increasingly based on genetically improved stocks, which have been established from admixed populations. To date, there scarce information about population genomics tilapia, assessed by dense single nucleotide polymorphism (SNP) panels. The patterns linkage disequilibrium (LD) may affect success genome-wide...