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Search Results: 1 - 10 of 318945 matches for " Fernando Irajá Félix de;Maia "
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CULTIVAR RELEASE - FAEM Chiarasul: new white oat cultivar with high yield and grainprocessing quality
Antonio Costa de Oliveira,Fernando Irajá Félix de Carvalho,Luciano Carlos da Maia,José Antonio Gonzalez da Silva
Crop Breeding and Applied Biotechnology , 2012,
Abstract: The white oat cultivar FAEM Chiarasul was developed from a cross between UFRGS 17 and UFGS 10/ Coronado2/Cortez3/Pendek/ME 1563. It is characterized by reduced plant height, and high yield, grain quality and grain-processing quality
SSR Locator: Tool for Simple Sequence Repeat Discovery Integrated with Primer Design and PCR Simulation
Luciano Carlos da Maia,Dario Abel Palmieri,Velci Queiroz de Souza,Mauricio Marini Kopp,Fernando Irajá Félix de Carvalho,Antonio Costa de Oliveira
International Journal of Plant Genomics , 2008, DOI: 10.1155/2008/412696
Abstract: Microsatellites or SSRs (simple sequence repeats) are ubiquitous short tandem duplications occurring in eukaryotic organisms. These sequences are among the best marker technologies applied in plant genetics and breeding. The abundant genomic, BAC, and EST sequences available in databases allow the survey regarding presence and location of SSR loci. Additional information concerning primer sequences is also the target of plant geneticists and breeders. In this paper, we describe a utility that integrates SSR searches, frequency of occurrence of motifs and arrangements, primer design, and PCR simulation against other databases. This simulation allows the performance of global alignments and identity and homology searches between different amplified sequences, that is, amplicons. In order to validate the tool functions, SSR discovery searches were performed in a database containing 28 469 nonredundant rice cDNA sequences.
Tandem repeat distribution of gene transcripts in three plant families
Maia, Luciano Carlos da;Souza, Velci Queiróz de;Kopp, Mauricio Marini;Carvalho, Fernando Irajá Félix de;Oliveira, Antonio Costa de;
Genetics and Molecular Biology , 2009, DOI: 10.1590/S1415-47572009005000091
Abstract: tandem repeats (microsatellites or ssrs) are molecular markers with great potential for plant genetic studies. modern strategies include the transfer of these markers among widely studied and orphan species. in silico analyses allow for studying distribution patterns of microsatellites and predicting which motifs would be more amenable to interspecies transfer. transcribed sequences (unigene) from ten species of three plant families were surveyed for the occurrence of micro and minisatellites. transcripts from different species displayed different rates of tandem repeat occurrence, ranging from 1.47% to 11.28%. both similar and different patterns were found within and among plant families. the results also indicate a lack of association between genome size and tandem repeat fractions in expressed regions. the conservation of motifs among species and its implication on genome evolution and dynamics are discussed.
Avalia??o de genótipos de aveia branca sob estresse de ácidos organicos
Kopp, Mauricio Marini;Luz, Viviane Kopp da;Maia, Luciano Carlos da;Sousa, Rogerio Oliveira de;Carvalho, Fernando Irajá Félix de;Oliveira, Antonio Costa de;
Bragantia , 2009, DOI: 10.1590/S0006-87052009000200006
Abstract: the association of anaerobic conditions with high organic matter content in hydromorphic soils favors the development of anaerobic microorganisms that produce phytotoxic substances, especially short chain organic acids. the objective of this investigation was to evaluate the response of 20 oat (avena sativa l.) genotypes to the exposure of acetic, propionic and butyric acids in hydroponic system. three doses (0; 3 and 6 mm) of a mixture of the three acids at a 6:3:1 ratio, respectively were tested. the experimental design was randomized blocks with three replications on a factorial scheme. measured variables were root (cr) shoot (cpa) length, root number (nr), root (msr) and shoot (mspa) dry matter. variance analyses and regression fitness were performed. the effects of the interaction between doses and genotypes were significant for the variables cr and msr. the regression curves indicated two genotypes (or-3 e fapa-5) with stable root growth and three (or-3, ufrgs-17 e upf-15) with stable dry matter accumulation under organic acid stresses. the characterization of these genotypes regarding organic acid phytotoxic action is an important resource for breeding programs aiming at to develop high yielding cultivars for no-tillage or minimal tillage systems in hydromorphic soils of southern brazil.
Análise da germina??o de cultivares de arroz submetidas a estresse por ácido acético
Kopp, Mauricio Marini;Luz, Viviane Kopp da;Maia, Luciano Carlos da;Sousa, Rogério Oliveira de;Carvalho, Fernando Irajá Félix de;Oliveira, Antonio Costa de;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008005000029
Abstract: the objective of this research was to evaluate the germination of 12 rice genotypes under acetic acid stress, a phytotoxic compound produced in low drainage soils with high organic matter content. the tests were conducted with the first count of germination (pcg) and germination (g) of the genotypes subjected to 0mm, 4mm, 8mm and 12mm acetic acid concentrations. the seed of each genotype was placed in germitest paper that was embedded with treatment solutions and packaged in individual bags. the germination was performed at 25°c and the counts were carried out at 7 (pcg) and 14 days (g). a factorial random block design was performed with four replications of 50 seeds per genotype. the regressions set for the variables showed three genotypes with germination stability under acetic acid stress.
CULTIVAR RELEASE - FAEM Carlasul: new white oat cultivar with high grain yield
Ant?nio Costa de Oliveira,Fernando Irajá Félix de Carvalho,Luciano Carlos da Maia,José Ant?nio Gonzalez da Silva
Crop Breeding and Applied Biotechnology , 2012,
Abstract: The white oat cultivar FAEM Carlasul was developed at the Plant Genomics and Breeding Center, Faculty of Agronomy Eliseu Maciel, Federal University of Pelotas, as a result of the cross between UFRGS 10 and 90SAT-28 (Coronado2/Cortez3/Pendek/ME 1563). It is characterized by high yield and grain quality.
Avalia??o de genótipos de arroz sob efeito do ácido butírico
Kopp, Mauricio Marini;Luz, Viviane Kopp da;Maia, Luciano Carlos da;Coimbra, Jefferson Luiz Meirelles;Sousa, Rogério Oliveira de;Carvalho, Fernando Irajá Félix de;Oliveira, Antonio Costa de;
Acta Botanica Brasilica , 2010, DOI: 10.1590/S0102-33062010000200027
Abstract: hydromorphic soils have low drainage capacity and are used mainly for growing irrigated rice.. this condition favors the development of anaerobic microorganisms that produce phytotoxic substances. the objective of this work was to evaluate the response of 25 rice genotypes to butyric acid, a phytotoxic compound produced in low-drainage soils with high organic matter content. this work was performed by hydroponics with four acid doses as treatments using a random block design with three replications. the variables measured were root (cr) and shoot (cpa) length, number of roots (nr) and root (msr) and shoot (mspa) dry matter. analysis of variance, relative performance and regression fitting were performed. significance for genotype and dose was found for all variables. significance for the interaction (genotype vs. dose) was found only for cr and msr. the variable cr was the most influenced by the acid and the regression established for these variables revealed nine tolerant and 16 sensitive genotypes. genotypes developed for irrigated systems were more tolerant.
FAEM Carlasul: new white oat cultivar with high grain yield
Oliveira, Ant?nio Costa de;Carvalho, Fernando Irajá Félix de;Maia, Luciano Carlos da;Silva, José Ant?nio Gonzalez da;Crestani, Maraisa;Nornberg, Rafael;Hartwig, Irineu;Benin, Giovani;
Crop Breeding and Applied Biotechnology , 2012, DOI: 10.1590/S1984-70332012000200010
Abstract: the white oat cultivar faem carlasul was developed at the plant genomics and breeding center, faculty of agronomy eliseu maciel, federal university of pelotas, as a result of the cross between ufrgs 10 and 90sat-28 (coronado2/cortez3/pendek/me 1563). it is characterized by high yield and grain quality.
Distancia morfológica entre genótipos de trigo com ausência e presen?a do caráter "stay-green"
Silva, José Antonio Gonzalez da;Carvalho, Fernando Irajá Félix de;Hartwig, Irineu;Caetano, Vanderlei da Rosa;Bertan, Ivandro;Maia, Luciano Carlos da;Schimidt, Douglas André Mallmann;Finatto, Taciane;Valério, Igor Pires;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000500007
Abstract: estimates of genetic distance among cultivars can be useful in an improvement program for directing crosses and evaluating the available germoplasm. this work was aimed at estimating the genetic distance among the genetic constitutions of wheat adapted in the south of brazil in order to verify promising combinations with genotypes that express the stay-green trait. 37 wheat genotypes were evaluated in experimental field and measured fourteen morphological characters. the clustering methods based on the techniques of tocher, mds and upgma were efficient to discriminate the genetic distance among the tested genotypes. directed crosses between high yield stay-green wheat lines and elite cultivars can provide promising populations for obtaining superior genotypes.
Uma proposta de sele??o para caracteres quantitativos e qualitativos em aveia
Benin, Giovani;Carvalho, Fernando Irajá Félix de;Oliveira, Ant?nio Costa;Silva, José Antonio Gonzales da;Lorencetti, Claudir;Maia, Melissa Batista;Marchioro, Volmir Sérgio;Freitas, Fabio;Hartwig, Irineu;
Ciência Rural , 2004, DOI: 10.1590/S0103-84782004000300008
Abstract: in oat (avena sativa l.) techniques that minimize environmental effects on the expression of phenotype and facilitate the identification of high yielding genotypes are useful. short stature and tolerance to toxic aluminum are important for the development of cultivars with adaptability to marginal areas. thus, genotypes selected by the honeycomb method, in three different crosses, were subjected to simultaneous tests for aluminum tolerance (al+3) and insensibility to gibberelic acid (ag3), aiming the identification of superior genotypes. this technique enabled the selection of high yielding, short stature and al+3 tolerant genotypes and could be applied in plant breeding programs involving cultivated hexaploid oat.
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