Consulta: creatorFacets:"Marin,Silvana Regina Rockenbach"
Registros recuperados: 4
Data/hora: 13/06/2024 17:52:45

Introduction of the rd29A: AtDREB2A CA gene into soybean (Glycine max L. Merril) and its molecular characterization in leaves and roots during dehydration
Provedor de dados: Genetics and Molecular Biology
Autores: Engels,Cibelle; Fuganti-Pagliarini,Renata; Marin,Silvana Regina Rockenbach; Marcelino-Guimarães,Francismar Corrêa; Oliveira,Maria Cristina Neves; Kanamori,Norihito; Mizoi,Junya; Nakashima,Kazuo; Yamaguchi-Shinozaki,Kazuko; Nepomuceno,Alexandre Lima.
The loss of soybean yield to Brazilian producers because of a water deficit in the 2011-2012 season was 12.9%. To reduce such losses, molecular biology techniques, including plant transformation, can be used to insert genes of interest into conventional soybean cultivars to produce lines that are more tolerant to drought. The abscisic acid (ABA)-independent Dehydration Responsive Element Binding (DREB) gene family has been used to obtain plants with increased tolerance to abiotic stresses. In the present study, the rd29A:AtDREB2A CA gene from Arabidopsis thaliana was inserted into soybean using biolistics. Seventy-eight genetically modified (GM) soybean lines containing 2-17 copies of the AtDREB2A CA gene were produced. Two GM soybean lines (P1397 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arabidopsis; Differential expression; Genetically modified organism; Water deficit.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000400015

Caracterização molecular de populações do nematóide-de-cisto-da-soja com diferentes índices de parasitismo na cultivar Hartwig
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Abdelnoor,Ricardo Vilela; Dias,Waldir Pereira; Silva,João Flávio Veloso; Marin,Silvana Regina Rockenbach; Kiihl,Romeu Afonso de Souza.
Recentemente, foi descoberta uma raça do nematóide-de-cisto-da-soja (NCS; Heterodera glycines) que apresentou a capacidade de quebrar a resistência da cultivar Hartwig, até então considerada resistente a todas as raças conhecidas do nematóide. Essa população foi coletada no Município de Sorriso, Estado do Mato Grosso, e foi caracterizada como raça 4. Para verificar a diversidade genética entre esta e outras populações pertencentes às raças 4 e 9, foi feita uma caracterização molecular pela técnica de marcadores moleculares RAPD. Foram utilizadas nove populações do NCS, das quais quatro apresentavam a capacidade de parasitar 'Hartwig'. Foi verificado que as populações capazes de parasitar 'Hartwig' foram bastante diferentes das demais. Por meio de análise...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heterodera glycines; Variação genética; Marcadores moleculares; Polimorfismo.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000200017

Quantitative differential expression of alpha and beta ryanodine receptor genes in PSE (Pale, Soft, Exudative) meat from two chicken lines: broiler and layer
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Oda,Sandra Helena Inoue; Nepomuceno,Alexandre Lima; Ledur,Mônica Corrêa; Oliveira,Maria Cristina Neves de; Marin,Silvana Regina Rockenbach; Ida,Elza Iouko; Shimokomaki,Massami.
Total RNA isolated from Pectoralis major muscle from PSE (L*24h&gt;53.0, pH&lt;5.8) and non-PSE (44&lt;"L*24h&gt;"53) meats of two phenotypically distinct chicken lines, broiler and layer, was used to investigate the α-ryr and β-ryr gene expression by real-time RT-PCR approach. Mean relative quantification (RQ) values were lower (p&lt;0.05) for β-ryr in PSE chickens from both lines when compared to non-PSE chickens, while there was no difference (p&gt;0.05) in α-ryr gene expression regardless of line studied. The β-ryr RQ results suggested that in PSE samples an alteration might occur in the regular ratio (1:1) of α-RyR/β-RyR normally found in avian muscles. These results provided the first evidence of PSE meat occurrence as a result of the differential...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malignant hyperthermia; Poultry; Gene expression; Real time PCR.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600024

Molecular cloning of αRYR hotspot region 1 from broiler chicken
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Ziober,Iris Lamberti; Paião,Fernanda Gonzales; Marin,Silvana Regina Rockenbach; Marchi,Denis Fabricio; Binneck,Eliseu; Nepomuceno,Alexandre Lima; Coutinho,Luiz Lehmann; Shimokomaki,Massami.
Samples of Pectoralis major m. were collected, and an RT-PCR analysis of the a-Ryanodine receptor (a RYR) from chicken mRNA hotspot region spanning aminoacid residues 386 to 540, numbered according to the turkey sequence, revealed two classes of transcripts. The sequences of the first class were similar to turkey and human with 97% and 74% of identity, respectively, and included all transcripts with substitutions in the nucleotide sequence. The second class was characterized by the deletion of nucleotides, leading to a premature stop codon and coding for a truncated and nonfunctional protein. These results are to date the first report related to the sequencing of the chicken αRYR hotspot region 1, which will possibility serve as a guide for further studies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ΑRYR; PSE; Chicken.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700029