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	Provedor de dados Ciência Rural (2) BJM (1) PAB (1) Autor Coimbra,Maria Raquel Moura (4) Maggioni,Rodrigo (2) Silva,Suzianny Maria Bezerra Cabral da (2) Brasileiro,Bereneuza Tavares Ramos Valente (1) Costa,Raimundo Bezerra da (1) Diniz,Fábio Mendonça (1) Gálvez,Alfredo Olivera (1) Lima,Ana Patrícia Souza de (1) Lopes,José Patrocínio (1) Molina,Wagner Franco (1) Morais Jr,Marcos Antonio de (1) Oliveira,Diana Magalhães de (1) Oliveira,Karine Kelly Cavalcanti (1) Oliveira,Neiva Tinti de (1) Puchnick-Legat,Angela (1) Santos,Leilane Bruna Gomes dos (1) Mais... Palavra-chave Microsatellite (3) Litopenaeus vannamei (2) AFLP (1) Aquaculture (1) Fusarium solani (1) Genetic diversity (1) Intron splice site (1) Microcrustacea (1) PCR-fingerprinting (1) Paternal inheritance (1) Population genetics (1) Ribosomal DNA (1) Sexual reproduction (1) Shrimp farming (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2013 (2) 2010 (1) 2004 (1) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Genetic variability of marine shrimp in the Brazilian industry PAB Maggioni,Rodrigo; Coimbra,Maria Raquel Moura; Costa,Raimundo Bezerra da; Diniz,Fábio Mendonça; Molina,Wagner Franco; Oliveira,Diana Magalhães de; Puchnick-Legat,Angela. The objective of this work was to estimate the genetic variability level and distribution in Brazilian broodstocks of marine shrimp (Litopenaeus vannamei). Nine of the country's largest hatcheries were evaluated using codominant and highly polymorphic microsatellite markers. The results obtained from genotyping of ten microsatellite loci are indicative of genetic variability that is compatible with that found in wild populations of L. vannamei in Mexico and Central America. A possible explanation is the highly diversified and relatively recent origin of the available broodstocks. Bayesian analysis detected a signal for five founding populations. The distribution of genetic distances partially reflects geographical location, and this information will be... Tipo: Info:eu-repo/semantics/article Palavras-chave: Litopenaeus vannamei; Aquaculture; Microsatellite; Shrimp farming. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800026 Genetic variability within Fusarium solani specie as revealed by PCR-fingerprinting based on pcr markers BJM Brasileiro,Bereneuza Tavares Ramos Valente; Coimbra,Maria Raquel Moura; Morais Jr,Marcos Antonio de; Oliveira,Neiva Tinti de. Fusarium solani fungus (teleomorph Haematonectria haematococca) is of relevance for agriculture, producing a disease that causes significant losses for many cultivars. Moreover, F. solani is an opportunistic pathogen to animals and humans. The complexity associated to its correct identification by traditional methods justifies the efforts of using molecular markers for isolates characterization. In this work, three PCR-based methods (one PCR-ribotyping and two PCR-fingerprinting) were used to investigate the molecular variability of eighteen F. solani isolates from four Brazilian States, collected from different substrates. Genetic analysis revealed the intraspecific variability within the F. solani isolates, without any correlation to their geographical... Tipo: Info:eu-repo/semantics/article Palavras-chave: Intron splice site; Fusarium solani; Microsatellite; PCR-fingerprinting; Ribosomal DNA. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200006 Genetics of two marine shrimp hatcheries of the Pacific white shrimp Litopenaeus vannamei (Boone, 1931) in Pernambuco, Brazil Ciência Rural Lima,Ana Patrícia Souza de; Silva,Suzianny Maria Bezerra Cabral da; Oliveira,Karine Kelly Cavalcanti; Maggioni,Rodrigo; Coimbra,Maria Raquel Moura. The shrimp industry has grown significantly over the past 10 years in Brazil, especially the farmed production of the exotic Pacific white shrimp, Litopenaeus vannamei. In 2004, this industry was marked by a productivity crisis, which stirred interest towards genetic improvement of shrimp stocks. Shrimp breeders importation was banned in Brazil by a govern Normative Instruction in 1997, as a sanitary precaution. Since then, broodstock replacement in hatcheries has been based on domestic stocks, raising concerns on the decline of genetic diversity and if the existing diversity would allow effective genetic improvement programs. In the present research, genetic parameters such as number of alleles, effective allele number, expected and observed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Litopenaeus vannamei; Population genetics; Genetic diversity; Microsatellite. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000200011 Sexual reproduction in freshwater fairy shrimp, Dendrocephalus brasiliensis (Pesta, 1921) inferred by Amplified Fragment Length Polymorphism markers Ciência Rural Silva,Suzianny Maria Bezerra Cabral da; Santos,Leilane Bruna Gomes dos; Lopes,José Patrocínio; Gálvez,Alfredo Olivera; Coimbra,Maria Raquel Moura. Fluctuations in world harvests of Artemia sp cysts have increased prices sharply in the past years. Several organisms have been tested as alternative sources for a total or partial replacement of Artemia sp, among which the microcrustacean (Anostraca) Dendrocephalus brasiliensis stands out. The objective of this study was to investigate the reproductive strategy of D. brasiliensis by means of AFLP markers. The distinction between sexual and parthenogenetic reproduction was conducted using 7 EcoRI and MseI primer combinations in a full-sib family composed of 13 progenies. Forty polymorphic markers were obtained, of these, 35% were from paternal origin and 65% were maternally inherited. Results showed mendelian segregation in all markers through the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Microcrustacea; AFLP; Paternal inheritance; Sexual reproduction. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000600021 Registros recuperados: 4 Primeira ... 1 ... Última

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