Research Article

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08/17/2017
Biomass; Brazil; Crop Production; Genotype; Pennisetum; Seasons

The objectives of this study were to estimate the stability of dry biomass production of elephant grass genotypes under an annual harvest regime, in soil-climatic conditions of the Northern region of the Rio de Janeiro State, Brazil, and to compare methodologies for stability analyses of Yates and Cochran (YC), Plaisted and Peterson (PP), Annicchiarico (ANN), Lin and Binns (LB), Huenh (HU), ... more

M.S.B. Araújo; R.F. Daher; B.R.S. Menezes; G.A. Gravina; V.B. Silva; A.T.Amaral Júnior; E.V. Rodrigues; B.O. Almeida; N.J. Ponciano
09/27/2017
Brazil; Ecosystem; Evolution, Molecular; Gene Pool; Genotype; Gossypium; Polymorphism, Genetic; Quantitative Trait, Heritable; seeds; Selective breeding

Mocó cotton belong to the same species as the cultivated species, Gossypium hirsutum, and cultivated forms were mainly landraces but also developed as cultivars, bearing good fiber quality and drought tolerant when cropped as a perennial species. The northeast Brazil crop system based on this cotton type is finished, with a few small area planted in the three main States, where it was ... more

I.P.P. de Menezes; L.V. Hoffmann; T.H. de Lima; A.R. da Silva; V.S. Lucena; P.A.V. Barroso
09/21/2017
Animals; Brazil; Dogs; Feces; Genome, Viral; Parvoviridae Infections; Parvovirus, Canine; Phylogeny; Polymorphism, Genetic; Recombination, Genetic

With the objective of characterizing Canine parvovirus (CPV) from some suspected fecal samples of dogs collected from the Veterinarian Hospital in Belém city, five positive samples were found by PCR assay and an update molecular characterization was provided of the CPV-2 circulation in Belém. Through sequencing of the complete DNA sequences (NS1, NS2, VP1, and VP2 genes), the CPV-2 strain was ... more

S.P. Silva; L.N.P.P. Silva; E.D.L. Rodrigues; J.F. Cardoso; F.N. Tavares; W.M. Souza; C.M.P. Santos; F.M.S. Martins; I.S. Jesus; T.C. Brito; T.P.C. Moura; M.R.T. Nunes; L.M.N. Casseb; S. Filho; A.R. Casseb
09/27/2017
Brazil; Edible Grain; environment; genomic instability; Genotype; Plant breeding; Quantitative Trait, Heritable; Selection, Genetic; Selective breeding; Soybeans

Biplot analysis has often been used to recommend genotypes from different crops in the presence of the genotype x environment interaction (GxE). The objective of this study was to verify the association between the AMMI and GGE biplot methods and to select soybean genotypes that simultaneously meet high grain yield and stability to the environments belonging to the Edaphoclimatic Region 402, ... more

E.U.Ramos Junior; R.L. Brogin; V.P.C. Godinho; F.J.E. Botelho; F.D. Tardin; P.E. Teodoro
09/21/2017
Brazil; Coffea; Genotype; Multivariate analysis; Polymorphism, Genetic

For the selection of coffee plants that have favorable characteristics, it is necessary to evaluate variables related to production. Knowledge of the genetic divergence of arabica coffee is of extreme importance, as this knowledge can be associated with plant breeding programs in order to combine genetic divergence with good productive performance. The objective of this study was to evaluate ... more

C.M.S. Machado; N.S. Pimentel; A. Golynsk; A. Ferreira; H.D. Vieira; F.L. Partelli
12/02/2016
Animals; Avian Proteins; Body weight; Breeding; Chickens; Female; Gene expression; Gene Expression Regulation; male; Muscle development; Myostatin; Organ Specificity; Phenotype; Quantitative trait loci

Myostatin (MSTN) is expressed in the myotome and developing skeletal muscles, and acts to regulate the number of muscle fibers. Wuding chicken large body, developed muscle, high disease resistance, and tender, delicious meat, and are not selected for fast growth. Broiler chickens (Avian broiler) are selected for fast growth and have a large body size and high muscle mass. Here, 240 one-day-old ... more

L.X. Liu; T.F. Dou; Q.H. Li; H. Rong; H.Q. Tong; Z.Q. Xu; Y. Huang; D.H. Gu; X.B. Chen; C.R. Ge; J.J. Jia
1/23/2017
Breeding; Crosses, Genetic; Disease resistance; Genes, Plant; Genetic markers; Microsatellite Repeats; Oryza; Plant Diseases

Rice (Oryza sativa L.) blast disease is one of the most destructive rice diseases in the world. The fungal pathogen, Magnaporthe oryzae, is the causal agent of rice blast disease. Development of resistant cultivars is the most preferred method to achieve sustainable rice production. However, the effectiveness of resistant cultivars is hindered by the genetic plasticity of the pathogen genome. ... more

N. Hasan; M.Y. Rafii; A. Rahim; S.A. Nusaibah; N. Mazlan; S. Abdullah
12/02/2016
Animals; Body weight; Cattle; Genome-wide association study; Genotype; Models, Biological; Phenotype; Polymorphism, Single Nucleotide; Quantitative trait loci

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

M.C. Freua; M.H.A. Santana; R.V. Ventura; J.B.S. Ferraz
12/02/2016
Animals; Avian Proteins; Chickens; Female; Genetic association studies; Genotype; Insulin-like growth factor I; Phenotype; Polymorphism, Single-Stranded Conformational; Quantitative trait loci; Reproduction; Selection, Genetic

The insulin-like growth factor, IGF-I, plays an important role in the development of growth and reproductive traits. Single-strand conformation polymorphism analysis was used to detect and analyze polymorphisms and expression profiles of the IGF-I gene and its association with growth and reproductive traits of Jinghai yellow chickens. A point mutation g.295T>C was detected in the IGF-I gene ... more

M.A. Abdalhag; T. Li; L. Duan; T. Zhang; G. Zhang; J. Wang; Y. Wang
2/16/2017
Animals; Calcium-Binding Proteins; Calpain; Cattle; Gene frequency; Genetic markers; Genotype; Polymorphism, Single Nucleotide; Quantitative trait loci; Red Meat

The objectives of this study were to characterize the allelic and genotypic frequencies of polymorphisms in the µ-calpain and calpastatin genes, and to assess their association with meat tenderness and animal growth in Nellore cattle. We evaluated 605 Nellore animals at 24 months of age, on average, at slaughter. The polymorphisms were determined for the molecular markers CAPN316, CAPN530, ... more

M.E. Carvalho; J.P. Eler; M.N. Bonin; F.M. Rezende; F.H. Biase; F.V. Meirelles; L.C.A. Regitano; L.L. Coutinho; J.C.C. Balieiro; J.B.S. Ferraz

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