Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 303
Primeira ... 5678910111213 ... Última
Imagem não selecionada

Imprime registro no formato completo
Genetic structure from the oldest Jatropha germplasm bank of Brazil and contribution for the genetic improvement. Repositório Alice
SANTOS, D. N. dos; FERREIRA, J. L.; SETOTAW, T. A.; CANÇADO, G. M. de A.; PASQUAL, M.; LONDE, L. C. N.; SATURNINO, H. M.; VENDRAME, W. A..
the objective of this study was to investigate the genetic diversity and the population structure of jatropha accessions found in the oldest germplasm collection in Brazil using molecular markers. A combination of SSRs and ISSRs will be used in this study. The genetic information obtained is of great importance to support future genetic improvement programs of jatropha in Brazil.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Marcadores moleculares; Diversidade genética; Oilseed crop; Melhoramento genético; Variação genética; Genetic variation; Jatropha curcas; Genetic markers; Genetic improvement.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1059135
Imagem não selecionada

Imprime registro no formato completo
Genetic structure of Bertholletia excelsa populations from the Amazon at different spatial scales. Repositório Alice
SUJII, P. S.; MARTINS, K.; WADT, L. H. de O.; AZEVEDO, V. C. R.; SOLFERINI, V. N..
Population genetic structure and genetic diversity levels are important issues to understand population dynamics and to guide forest management plans. The Brazil nut tree (Bertholletia excelsa Bonpl.) is an endemic species, widely distributed through Amazonian upland forests and also an important species for the local extractive economy. Our aim was to analyze the genetic structure of Brazil nut trees at both fine and large scales throughout the Amazon Basin, contributing to the knowledge base on this species and to generate information to support plans for its conservation. We genotyped individuals from nine sites distributed in five regions of the Brazilian Amazon using 11 microsatellite loci. We found an excess of heterozygotes in most populations, with...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Marcador microssatélite; Melhoramento genético vegetal; Essência florestal; Castanha do pará; Bertholletia excelsa; Variação genética; Dinâmica populacional; Marcador genético; Plant breeding; Tropical wood; Brazil nuts; Genetic variation; Population dynamics; Genetic markers; Microsatellite repeats; Fitomejoramiento; Madera tropical; Nuez del Brasil; Variación genética; Dinámica poblacional; Marcadores genéticos; Repeticiones de microsatélite.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1015836
Imagem não selecionada

Imprime registro no formato completo
Genetic Variability Between two provenances of açaizeiro (Euterpe oleracea Martus) PFB - Pesquisa Florestal Brasileira
Farias Neto, João Tomé de; Müller, Antônio Agostinho; Oliveira, Maria do Socorro Padilha de; Santo, Dewis Eduardo Silva do Espirito; Silva, Mirna Rafaela Almeida da.
The objective of this work is to generate information about the distribution of the levels of genetic variability in two provenances of Euterpe oleracea. A sample of seeds of each individual from distinct regions had been collected at Curralinho and Limoeiro of Ajuru, localities of Pará State placed on the Estuary of Amazon river. The experiment was installed in randomized blocks with two replications and five plants per plot. Seedlings were evaluated, at 10 months of age for: height, diameter and number of leaves. Significant genetic variations between provenances for number of leaves were detected. Curralinho provenance presented greater genetic variability than Limoeiro do Ajuru. Small levels of coefficients of genetic variation among provenances shows...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic variation; Natural populations; Genetic parameter Variação genética; Populações naturais; Parâmetros genéticos.
Ano: 2003 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1622
Imagem não selecionada

Imprime registro no formato completo
Genetic variability for cold tolerance in pigeonpea Open Agri
Sandhu,J.S.
Palavras-chave: Pigeonpeas; Genotypes; Tolerance; Genetic variation; Temperature; Chickpeas; Germplasm; Genetic resources; Genetics; Freezing.
Ano: 2007 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3340
Imagem não selecionada

Imprime registro no formato completo
Genetic variability for iron and zinc content in common bean lines and interaction with water availability. Repositório Alice
PEREIRA, H. S.; DEL PELOSO, M. J.; BASSINELLO, P. Z.; GUIMARÃES, C. M.; MELO, L. C.; FARIA, L. C..
The common bean is an important source of iron and zinc in humans. Increases in the contents of these minerals can combat mineral deficiencies, but these contents are influenced by environmental conditions. Thus, the objectives of this study were to investigate the interaction between common bean lines and water availability on iron and zinc contents (CFe and CZn, respectively), identify superior lines with stable CFe and CZn, and test for a genetic relationship between CFe and CZn. Six crop trials were performed using a randomized block design with three replications. The trials were performed during the winter sowing period for three different combinations of year and site in Brazil. For each combination, 53 lines were evaluated across two parallel...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Biofortificação; Feijão; Phaseolus vulgaris; Melhoramento genético; Ferro; Zinco; Variação genética; Nutrição; Interação genética; Genetic variation; Biofortification; Genótype x environment interaction.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1037554
Imagem não selecionada

Imprime registro no formato completo
Genetic variability in flowering-to-maturity duration in rice (Oryza sativa L.) International Rice Research Institute
Li, Guo Fu.
73 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Genetic variation; Developmental stages; Plant physiology.
Ano: 1988 URL: http://hdl.handle.net/123456789/1210
Imagem não selecionada

Imprime registro no formato completo
Genetic variability in four samples of Neoplecostomus yapo (Teleostei: Loricariidae) from the rio Paranapanema basin, Brazil Neotropical Ichthyology
Philippsen,Juliana S.; Renesto,Erasmo; Gealh,Ana Maria; Artoni,Roberto F.; Shibatta,Oscar A.; Zawadzki,Claudio H..
Four samples of Neoplecostomus yapo were analyzed through the allozyme electrophoresis technique in corn starch gel. The allozyme pattern was similar to those found in N. paranensis with 24 loci scored. Two samples (ribeirão Atlântico and ribeirão Uraí) showed monomorphic bands for all 24 loci, whereas the other two (rio Verde and rio Fortaleza) showed 8.3% of polymorphic loci. The He genetic variability estimates for the rios Verde and Fortaleza populations were 0.0195 and 0.0179, respectively, too much inferior to the mean heterozygosity summed to species from the whole world (0.051). The Wright statistical values F IS = 0.5181, F IT = 0.5681 and F ST = 0.1039 and the genetic distance of Nei values showed that the four samples are genetically very...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allozymes; Genetic variation; Neoplecostominae; Neotropical fishes; Siluriformes.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000100004
Imagem não selecionada

Imprime registro no formato completo
Genetic variability of body performance and carcass parts in a broiler strain. Repositório Alice
MENDONÇA, G. G.; VENTURINI, G. C.; NUNES, B. do N.; LEDUR, M. C.; MUNARI, D. P..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Qualidade da carne; Frango de corte; Carcarça; Variação genética; Broiler chickens; Carcass; Body weigth; Meat quality; Genetic variation.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/971138
Imagem não selecionada

Imprime registro no formato completo
Genetic variability of elite barley genotypes for brazilian savanna irrigated systems based on RAPD markets. Repositório Alice
AMABILE, R. F.; FALEIRO, F. G.; CAPETTINI, F.; RIBEIRO JUNIOR, W. Q.; PEIXOTO, J. R.; ALMEIDA, B. C. de.
O objetivo deste trabalho foi caracterizar e quantificar a variabilidade genética de 39 acessos de cevada elite da coleção de trabalho da Embrapa Cerrados, utilizando marcadores moleculares RAPD. Foram utilizados 15 iniciadores decâmeros para a obtenção dos marcadores RAPD, que foram convertidos em uma matriz de dados binários, a partir da qual foram estimadas as dissimilaridades genéticas entre os diferentes acessos e realizadas análises de agrupamento. Foram obtidos 160 marcadores RAPD, dos quais 141 (88,12%) foram polimórficos. As dissimilaridades genéticas variaram de 0,049 a 0,337, entre os acessos de cevada. A análise de agrupamento e de dispersão gráfica mostrou uma tendência de agrupamento entre os genótipos mexicanos e americanos. Outra tendência...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cevada; Variação genética; Marcador genético; Recurso genético; Cerrado; Barley; Genetic variation; Genetic markers; Genetic resources; Savannas; Hordeum vulgare; Random amplified polymorphic DNA technique.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/973081
Imagem não selecionada

Imprime registro no formato completo
Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments. Repositório Alice
HOOGERHEIDE, E. S. S.; AZEVEDO FILHO, J. A.; VENCOVSKY, R.; ZUCCHI, M. I.; ZAGO, B. W.; PINHEIRO, B. J..
The cultivated garlic (Allium sativum L.) displays a wide phenotypic diversity, which is derived from natural mutations and phenotypic plasticity, due to dependence on soil type, moisture, latitude, altitude and cultural practices, leading to a large number of cultivars. This study aimed to evaluate the genetic variability shown by 63 garlic accessions belonging to Instituto Agronômico de Campinas and the Escola Superior de Agricultura ?Luiz de Queiroz? germplasm collections. We evaluated ten quantitative characters in experimental trials conducted under two localities of the State of São Paulo: Monte Alegre do Sul and Piracicaba, during the agricultural year of 2007, in a randomized blocks design with five replications. The Mahalanobis distance was used...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Allium sativum; Cluster analysis; Multivariate analysis; Genetic variation.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085920
Imagem não selecionada

Imprime registro no formato completo
Genetic variability of hull-less barley accessions based on molecular and quantitative data. Repositório Alice
SAYD, R. M.; AMABILE, R. F.; FALEIRO, F. G.; BELLON, G..
Abstract - The objective of this work was to characterize and quantify the genetic, molecular, and agronomic variability of hull-less barley genotypes, for the selection of parents and identification of genotypes adapted to the irrigated production system in the Brazilian Cerrado. Eighteen hull-less barley accessions were evaluated, and three covered barley accessions served as reference. The characterization was based on 157 RAPD molecular markers and ten agronomic traits. Genetic distance matrices were obtained based on molecular markers and quantitative traits. Graphic grouping and dispersion analyses were performed. Genetic, molecular, and agronomic variability was high among genotypes. Ethiopian accessions were genetically more similar, and the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Caracteres quantitativos; Diversidade genética; Genetic diversity; Molecular markers; Hordeum vulgare; Marcador molecular; Melhoramento genético vegetal; Genetic markers; Genetic variation; Quantitative traits.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1036254
Imagem não selecionada

Imprime registro no formato completo
Genetic variability of mango (Mangifera indica L.) cultivars used in the Embrapa Cerrados breeding program using RAPD markers. Infoteca-e
FALEIRO, F. G.; PINTO, A. C. Q.; CORDEIRO, M. C. R.; RAMOS, V. H. V.; BELLON, G.; ANDRADE, S. R. M.; PINTO, J. F. N..
0
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Marcador molecular; Melhoramento genetico; Manga; Mangifera indica; Metodo de melhoramento; Variacao genetica; RAPD; Marcador genetico; Biotecnologia; Cerrado; Genetic markers; Plant breeding; Mango; Breeding methods; Genetic variation; Biotechnology.
URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/566512
Imagem não selecionada

Imprime registro no formato completo
Genetic variation among and within tritipyrum (Thinopyrum bessarabicum x Triticum durum) lines using PCR-based molecular markers Ciencia e Investigación Agraria
Siahsar,Barat Ali; Allahdoo,Maryam; Shahsevand Hassani,Hossein.
Primary hexaploid tritipyrum lines are amphiploids between Triticum durum and Thinopyrum bessarabicum, which can set seed in at least 250 mM NaCl. Genetic variation within and among 14 lines of primary tritipyrum were investigated by using 2 random and 6 semi random primers that produced clear and reproducible DNA amplicons. Average values for Nei's gene diversity (h) and Shannon indices (I) were 0.115 and 0.178, respectively. These results indicated low variation within primary tritipyrum lines, probably related to unbiased chromosome and partial aneuploidy. Total genetic diversity (Ht) and gene diversity within lines (Hs) were 0.2114 and 0.1156, respectively. The coefficient of genetic differentiation (Gst) was equal to 0.4534. AMOVA showed highly...
Tipo: Journal article Palavras-chave: Aneuploidy; Genetic variation; Random primers; Semi random primers; Tritipyrum lines.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100012
Imagem não selecionada

Imprime registro no formato completo
Genetic variation and trade-offs for reproduction ans survival in the Pacific oyster Crassostrea gigas ArchiMer
Boudry, Pierre; Degremont, Lionel; Bedier, Edouard; Pouvreau, Stephane; Normand, Julien; Ernande, Bruno.
To date, the most significant method to genetically reduce reproductive effort in the Pacific oyster (Crassostrea gigas) has been through the production of triploids, especially since the development of tetraploid lines allowing the breeding of 'natural' triploids. Gametogenesis of triploid oysters is strongly reduced compared with diploids, although they are not fully sterile and can produce viable gametes and some progenies when crossed with diploids. Reduced reproductive allocation and higher heterozygocity are commonly proposed as the main reasons why triploids often present superior yield compared with diploids. Temperature and food availability are known to favour gametogenesis in triploids, but the existence of genetic variation for this trait...
Tipo: Text Palavras-chave: Selective breeding; Reproduction; Genetic variation; Crassostrea gigas; Pacific oyster; Genetic.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-3445.pdf
Imagem não selecionada

Imprime registro no formato completo
Genetic variation for growth traits in progenies test of Pinus caribaea var. Hondurensis. Repositório Alice
SANTOS, W. dos; AGUIAR, A. V. de; RECCO, C. R. B.; MACHADO, J. A. R.; SOUZA, D. C. L.; ARAÚJO, D.; MORAES, M. L. T.; FREITAS, M. L. M..
2015
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Pinus caribaea; Espécie exótica; Variação genética; Teste de progênie; Genetic variation; Progeny test.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1027480
Imagem não selecionada

Imprime registro no formato completo
Genetic variation in populations of the yellow stem borer, Scirpophaga incertulas (Walker) and biological basis of resistance of the Oryza sativa (IR56) x Oryza brachyantha hybrid to the pest International Rice Research Institute
Nguyen Van Huynh.
93 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Boring insects; Scirpophaga incertulas; Genetic variation; Pest resistance; Hybrids; Oryza brachyantha; IR56 (rice variety).
Ano: 1993 URL: http://hdl.handle.net/123456789/728
Imagem não selecionada

Imprime registro no formato completo
Genetic variation of acid phosphatase-1 activity in maize Thai Agricultural
Efron, Yoel.
4 tables
Palavras-chave: Corn; Maize; Genetic variation; Acid phosphatase-1; ข้าวโพด; ความแปรปรวนทางพันธุกรรม.
Ano: 1972 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3897
Imagem não selecionada

Imprime registro no formato completo
Genética e melhoramento de essências florestais nativas: aspectos conceituais e práticos. Repositório Alice
KANASHIRO, M..
1992
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Essência florestal; Espécie nativa; Morototo; Freijo; Seringueira; Melhoramento genético; Variação genética; Bertholletia excelsa; Didymopanax morototoni; Cordia goeldiana; Forest trees; Plant breeding; Genetic variation; Indigenous organisms.
Ano: 1992 URL: http://www.alice.cnptia.embrapa.br/handle/doc/394566
Imagem não selecionada

Imprime registro no formato completo
GENÉTICA na piscicultura: importância da variabilidade genética, marcação e coleta para análise de DNA. Repositório Alice
Introdução. I. Análise de variabilidade genética. II. Marcação de peixes por tags. III. Coleta de amostras biológicas para análise de DNA. Referências.
Tipo: Livro científico (ALICE) Palavras-chave: Variabilidade genética; Piscicultura; Peixe; Marcador genético; Marcação; Análise; Variação genética; Fish culture; Genetic variation.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/946425
Imagem não selecionada

Imprime registro no formato completo
Genotypic differences in adaptation to late season drought and infertile soil in rainfed lowland rice (Oryza sativa L.) in Cambodia International Rice Research Institute
Ouk, Makara.
xxii, 245 l. : ill. Thesis (Ph.D.) -- University of Queensland
Tipo: Thesis Palavras-chave: Rice; Plant genetics; Genotype; Genetic variation; Drought; Soil; Genotype-environment interaction; Plant-water relations; Dryland farming; Cambodia; Rainfed lowland rice.
Ano: 2003 URL: http://hdl.handle.net/123456789/402
Registros recuperados: 303
Primeira ... 5678910111213 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional