Research Article

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Eucalyptus urophylla is an important species in the Brazilian forest sector due to its rapid growth rates and resistance to disease. The aim of this study was to verify Mendelian inheritance, genetic linkage, and genotypic disequilibrium for 15 microsatellite loci, with the goal of producing a robust set of genetic markers. Mendelian inheritance and genetic linkage analyses were carried out ... more

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Type 1 diabetes (T1D) is an autoimmune disease with a strong genetic component that has been associated with several genetic loci. Interleukin 18 (IL-18) is a potent proinflammatory cytokine, which is involved in the innate and adaptive immune responses, and in the pathogenesis of various diseases including T1D. Glucose transporter 4 (GLUT4) is known to be an insulin-responsive glucose ... more

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Arecaceae; environment; Gene frequency; Genotype; Microsatellite Repeats; Phenotype; Polymorphism, Genetic; Selection, Genetic

This study uses ISSR molecular markers to characterize the demographic pattern, and spatial genetic structure (SGS) at different life stages of development (cohorts) in a natural population of Copernicia prunifera in the Rio Grande do Norte State, Brazil. All individuals were sampled and georeferenced in a 0.55-ha plot. The demographic analyses showed a clustered pattern in the first-distance ... more

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This study aimed to investigate the predictability of a phenotype when using a dynamic model of cattle growth. Genotypic and phenotypic information on Nellore (Bos indicus) cattle were used in a genome-wide association analysis designed to contrast the biological interpretation of core parameters [conversion efficiency of metabolizable energy to net energy for gain (k) and adjusted final ... more

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03/22/2017
Animals; Bayes Theorem; Breeding; Genetic markers; Genomics; Genotype; Models, Genetic; Polymorphism, Single Nucleotide; Predictive Value of Tests; Quantitative trait loci; Regression Analysis; Selection, Genetic

Genomic selection (GS) is a variant of marker-assisted selection, in which genetic markers covering the whole genome predict individual genetic merits for breeding. GS increases the accuracy of breeding values (BV) prediction. Although a variety of statistical models have been proposed to estimate BV in GS, few methodologies have examined statistical challenges based on non-normal phenotypic ... more

M. Nascimento; F.F.E. Silva; M.D.V. de Resende; C.D. Cruz; A.C.C. Nascimento; J.M.S. Viana; C.F. Azevedo; L.M.A. Barroso
04/13/2017
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In arid and semi-arid zones, animal health and production are closely correlated with body conformation traits. These selected traits, in turn, allow livestock to adapt unfavorable soil and environmental conditions. The primary objective of this study was to perform a genome-wide association analysis for a set of sampled and imputed SNPs with 16 conformation traits in a population of Holstein ... more

M.E. González; V.M. González; M.F. Montaño; G.E. Medina; P. Mahadevan; C. Villa; R. Villa
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Animals; Diacylglycerol O-Acyltransferase; Genotype; Growth hormone; Leptin; Polymorphism, Single Nucleotide; Receptors, Leptin; Selective breeding; Swine

Molecular markers are tools used to improve genetic gains. The objective of this study was to analyze the security of alleles of molecular marker genes for characteristics of economic interest in a pure population of pigs. After the extraction of DNA from the hair of 272 Large White matrices, the allele and genotype frequency of single nucleotide polymorphism was performed using the ARMS-PCR ... more

I.M. Ferreira; G.S. Vieira; T.F. Braga; T.C.F. Silva; M.M. Franco; R.C. Antunes
03/16/2017
Animals; Aquaculture; Cichlids; Ethanol; Fish Proteins; Gene Expression Regulation; male; Muscle, Skeletal; Myostatin; Organ Size; Plant Extracts; Propolis

Propolis can be used as growth enhancer due to its antimicrobial, antioxidant, and immune-stimulant properties, but its effects on morphometry and muscle gene expression are largely unknown. The present study evaluates the influence of propolis on muscle morphometry and myostatin gene expression in Nile tilapia (Oreochromis niloticus) bred in net cages. Reversed males (GIFT strain) with an ... more

E.L. Buck; I.Y. Mizubuti; A.A. Alfieri; R.A.A. Otonel; L.Y. Buck; F.P. Souza; O.P. Prado-Calixto; A.R. Poveda-Parra; A. Filho; N.M. Lopera-Barrero
03/16/2017
Animals; Aquaculture; Cichlids; Fish Proteins; Gene expression; Gene Expression Regulation, Developmental; Muscle, Skeletal; Myostatin; Ponds

Tissue growth in most fishes occurs by muscular hyperplasia and hypertrophy, which are influenced by different regulatory factors, such as myostatin. The current study evaluated the influence of cultivation in hapas and earthen ponds on the diameter of white muscle fibers and on the myostatin (MSTN-1) gene in GIFT and Supreme varieties of tilapia. Fish of both varieties were reared for 204 ... more

E.C.S. Lima; J.A. Povh; R.A.A. Otonel; J.H. Leonhardt; A.A. Alfieri; S.A. Headley; F.P. Souza; A.R. Poveda-Parra; P.J. Furlan-Murari; N.M. Lopera-Barrero
03/16/2017
Animals; Aquaculture; Cichlids; Fish Proteins; Gene expression; Gene Expression Regulation, Developmental; Muscle, Skeletal; Myostatin; Ponds

Tissue growth in most fishes occurs by muscular hyperplasia and hypertrophy, which are influenced by different regulatory factors, such as myostatin. The current study evaluated the influence of cultivation in hapas and earthen ponds on the diameter of white muscle fibers and on the myostatin (MSTN-1) gene in GIFT and Supreme varieties of tilapia. Fish of both varieties were reared for 204 ... more

E.C.S. Lima; J.A. Povh; R.A.A. Otonel; J.H. Leonhardt; A.A. Alfieri; S.A. Headley; F.P. Souza; A.R. Poveda-Parra; P.J. Furlan-Murari; N.M. Lopera-Barrero

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