Research Article

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Crop Production; Genotype; Hot Temperature; Manihot; Mosaic Viruses; Plant Shoots; Tetracycline

This study aimed to develop a methodology for eliminating cassava frogskin disease (CFSD) from in vitro shoot tip culture by associating thermotherapy and tetracycline. Cuttings from different accessions (BGM0232, BGM0315, BGM0464, BGM584, BGM0841, and BGM1342), infected with CFSD according to visual inspection of the disease symptoms, were used for cleaning. To verify the absence of other ... more

M.J.S. Carvalho; E.J. Oliveira; A.S. Souza; J.S. Pereira; M.S.A.S. Diamantino; S.A.S. Oliveira
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Genetic variation; Genotype; Models, Genetic; Plant breeding; Quantitative Trait, Heritable; Soybeans

The genetic diversity study has paramount importance in breeding programs; hence, it allows selection and choice of the parental genetic divergence, which have the agronomic traits desired by the breeder. This study aimed to characterize the genetic divergence between 24 soybean genotypes through their agronomic traits, using multivariate clustering methods to select the potential genitors for ... more

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Fabaceae; Genotype; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable

Desmanthus is a genus of forage legumes with high nutritional value, productive potential, and ability to obtain nitrogen in association with diazotrophic bacteria. The use of accurate techniques for genotype identification and characterization is essential for breeding programs. Morphological markers are widely used to know the genetic diversity and the molecular markers are fundamental in ... more

J.C. Costa; G.G.M. Fracetto; F.J.C. Fracetto; M.V.F. Santos; M.A.Lira Júnior
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Adaptation, Physiological; Alleles; Anacardiaceae; Endangered species; Gene flow; Genotype; Heterozygote; Polymorphism, Genetic; seeds

The success of recovery programs on degraded areas is dependent on the genetic material to be used, which should present heterozygosity and genetic diversity in native and recovered populations. This study was carried out to evaluate the model efficiency to enable the recovery of a degraded area of the Lower São Francisco, Sergipe, Brazil. The target species for this study was Schinus ... more

S.V. Alvares-Carvalho; R. Silva-Mann; I.B. Gois; M.F.V. Melo; A.S. Oliveira; R.A. Ferreira; L.J. Gomes
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The relative quantitative real-time expression of two expressed sequence tags (ESTs) codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3) was performed for genotypes inoculated with Azospirillum brasilense. Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised ... more

L. Pereira-Defilippi; E.M. Pereira; F.M. Silva; G.V. Moro
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Crop Production; Crosses, Genetic; Dehydration; Genotype; Plant Transpiration; Solanum lycopersicum; Stress, Physiological; Water

Water stress can affect the yield in tomato crops and, despite this, there are few types of research aiming to select tomato genotypes resistant to the water stress using physiological parameters. This experiment aimed to study the variables that are related to the gas exchanges and the efficiency in water use, in the selection of tomato genotypes tolerant to water stress. It was done in a ... more

M.E.A. Borba; G.M. Maciel; E.F.Fraga Júnior; C.S.Machado Júnior; G.R. Marquez; I.G. Silva; R.S. Almeida
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Crop Production; Edible Grain; Genotype; Phenotype; Quantitative Trait, Heritable; seeds; Soybeans

The goals of this research were to evaluate the phenotypic and genotypic correlations between agronomic traits, to perform path analysis, having as main character grain yield, and to identify indirect selection criteria for grain yield. The experiment was carried out in an experimental area located at Capim Branco farm, which belongs to Federal University of Uberlândia, during the growing ... more

B.Q.V. Machado; A.P.O. Nogueira; O.T. Hamawaki; G.F. Rezende; G.L. Jorge; I.C. Silveira; L.A. Medeiros; R.L. Hamawaki; C.D.L. Hamawaki
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Animals; Cattle; Female; Genome-wide association study; Genotype; Lactation; Longevity; Milk; Quantitative trait loci; Quantitative Trait, Heritable; Reproduction; Selective breeding

In this study, we estimated the genetic parameters and identified the putative quantitative trait loci (QTL) associated with the length of productive life (LPL), days open (DO), and 305-day milk yield for the first lactation (FM305) of crossbred Holstein dairy cattle. Data comprising 4,739 records collected between 1986 and 2004 were used to estimate the variance-covariance components using ... more

P. Saowaphak; M. Duangjinda; S. Plaengkaeo; R. Suwannasing; W. Boonkum
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Adaptation, Physiological; environment; Gene-Environment Interaction; Genetic variation; Genotype; Plant breeding; Quantitative Trait, Heritable; Saccharum; Selection, Genetic

The recommendation of sugarcane clones depends on several factors, as the response or performance of the clones over different cuts or harvests. The clone by harvest interaction might be difficult to identify superior clones in the final stages of the sugarcane breeding program. Thus, the objective of this study was to investigate and describe the implications of the genotype by harvest ... more

D.N.A. Cabral; J.A.R. Nunes; P.D.S. Cabral; J. Zuchi; A.J. Raizer; T.O.M. De Paula
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The Staphylococcus aureus is the most common isolated microorganism in ruminant animal species diagnostic with clinical or subclinical mastitis. Dairy herds with these diseases can transfer S. aureus into the milk supply, which can lead to food poisoning in humans. The objective of this study was to evaluate the profile of antimicrobial susceptibility, the presence of femA gene, the genetic ... more

A.R.E.O. Xavier; A.C. Almeida; C.N. Souza; L.M.V. Silva; A.X.A. Ruas; D.A. Sanglard; A.F.M. Júnior; A.M.E. Oliveira; M.A.S. Xavier

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