Research Article

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Brazil; Cystic fibrosis; Cystic Fibrosis Transmembrane Conductance Regulator; Early Diagnosis; Gene flow; Gene frequency; Genetic counseling; Healthy Volunteers; Humans; Mutation; White People

The ΔF508 mutation is the most common cause of cystic fibrosis and its prevalence varies worldwide. For instance, up to 20-fold variations in its frequency have been recorded across different areas of Brazil. This study aimed to compare the distribution of ΔF508 among healthy individuals of admixed Portuguese descent from Espírito Santo (ES), a state in Southeastern Brazil, to that in a ... more

A.M. Lanes; L.S. Louro; D.P. Ventorim; E. Stur; F.M. Garcia; L.P. Agostini; L.N.R. Alves; R.S. Reis; I.D. Louro; R.S. Dettogni
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Avena; Brazil; Disease resistance; Edible Grain; Fungicides, Industrial; Plant breeding; Quantitative trait loci; Selection, Genetic

The State of Rio Grande do Sul (RS) is the largest producer of oat in Brazil with the aid of consolidated breeding programs, which are constantly releasing new cultivars. The main objectives of this study were to: 1) evaluate the annual genetic progress in grain yield and hectoliter weight of the oat cultivars in RS, with and without fungicide use on aerial parts of plants; and 2) evaluate the ... more

D.N. Follmann; C. Filho; A.D. Lúcio; V.Q. de Souza; M. Caraffa; C.A. Wartha
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Amplified Fragment Length Polymorphism Analysis; Brazil; DNA, Bacterial; DNA, Ribosomal; Evolution, Molecular; Genetic variation; Pantoea; Plant Diseases; Plasmids; Zea mays

Measures to control maize white spot (MWS) caused by Pantoea ananatis are preferentially based on resistant cultivars. A lack of knowledge on the genetic variability of pathogens could interfere with the development and utilization of controlling strategies in this pathosystem. The main goals of this study were to investigate the genetic variability of 90 P. ananatis isolates from three ... more

A.M. Miller; J.E.F. Figueiredo; C.L. Chaves; E.A. Ruas; M.I. Balbi-Peña; N.B. Colauto; L.D. Paccola-Meirelles
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Brazil; Chromosome Disorders; Chromosome duplication; Chromosomes, Human, Pair 5; Humans; male; Phenotype

Genomic disorders are genetic diseases that are caused by rearrangements of chromosomal material via deletions, duplications, and inversions of unique genomic segments at specific regions. Such rearrangements could result from recurrent non-allelic homologous recombination between low copy repeats. In cases where the breakpoints flank the low copy repeats, deletion of chromosomal segments is ... more

F.G. Reis; I.P. Pinto; L.B. Minasi; A.V. Melo; D.M. da C. Cunha; C.L. Ribeiro; C.C. da Silva; deM. Silva; A.D. da Cruz
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Animals; Bayes Theorem; Brazil; Evolution, Molecular; Fishes; Genetic variation; Genetics, Population; Microsatellite Repeats

Genetic variability is one of the important criteria for species conservation decisions. This study aimed to analyze the genetic diversity and the population differentiation of two natural populations of Arapaima gigas, a species with a long history of being commercially exploited. We collected 87 samples of A. gigas from Grande Curuai Lake and Paru Lake, located in the Lower Amazon region of ... more

P.F. Fazzi-Gomes; N. Melo; G. Palheta; S. Guerreiro; M. Amador; A.K. Ribeiro-Dos-Santos; S. Santos; I. Hamoy
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The Red Sindhi cattle breed was imported to Brazil in small numbers. Nowadays, the herds of this breed are distributed in the Northeast, Southeast and Midwest regions of the country. In this study, DNA samples of animals originating from 15 herds in the Northeast and Southeast regions have been analyzed to obtain the ancestry proportions, and to gain a better understanding of the current ... more

J.C.C. Panetto; M.V.G.B. Silva; R.M.H. Leite; M.A. Machado; F.A.T. Bruneli; D.R.L. Reis; M.G.C.D. Peixoto; R.S. Verneque
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Alleles; Brazil; Fruit; Genetic markers; Genetic variation; Microsatellite Repeats; Myrtaceae; Phylogeny; Plant breeding; Polymorphism, Genetic; Trees; Vitamin A

Myrciaria dubia (camu-camu) is an Amazon tree that produces a tart fruit with high vitamin C content. It is probably the fruit with the highest vitamin C content among all Brazilian fruit crops and it can be used to supplement daily vitamin C dose. This property has attracted the attention of consumers and, consequently, encouraged fruit farmers to produce it. In order to identify and select ... more

C.F. Nunes; T.A. Setotaw; M. Pasqual; E.A. Chagas; E.G. Santos; D.N. Santos; C.G.B. Lima; G.M.A. Cançado
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Brazil; Crops, Agricultural; Crosses, Genetic; Genetic variation; Phaseolus; Plant breeding; Selection, Genetic

Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in generation S. The aim of the ... more

L.A. Pereira; A.F.B. Abreu; I.C.Vieira Júnior; L.P.M. Pires; M.A.P. Ramalho
3/22/2017
Biofuels; Biometry; Brazil; Genetic variation; Jatropha; Plant breeding; Plant Oils

Jatropha is a species with great potential for biodiesel production, and the knowledge on how the main agronomic traits are correlated will contribute to its improvement. Therefore, the objectives of this study were to estimate the genetic parameters of the traits: plant height at 12 and 40 months, canopy projection on the row at 12 and 40 months, canopy projection between the row at 12 and 40 ... more

L.A. Silva; L.A. Peixoto; P.E. Teodoro; E.V. Rodrigues; B.G. Laviola; L.L. Bhering
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Animals; Anti-Inflammatory Agents; Brazil; Carrageenan; Cell Movement; Disease Models, Animal; Dose-Response Relationship, Drug; Edema; Gas Chromatography-Mass Spectrometry; Gene Expression Regulation; Leukocytes; male; Mangifera; Medicine, Traditional; Mice; Oils, Volatile; Peroxidase; Plant Leaves; Plant Oils; Rats

Mangifera indica is widely found in Brazil, and its leaves are used as an anti-inflammatory agent in folk medicine. The aim of this study is to perform composition analysis of essential oils from the M. indica varieties, espada (EOMIL1) and coração de boi (EOMIL2), and confirm their anti-inflammatory properties. Twenty-three volatile compounds were identified via gas chromatography-mass ... more

R.M. Oliveira; T.S. Dutra; E. Simionatto; N. Ré; C.A.L. Kassuya; C.A.L. Cardoso

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