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	Provedor de dados Genet. Mol. Biol. (3) Autor Vello,Natal Antonio (2) Wysmierski,Philip Traldi (2) Barbosa-Neto,José F. (1) Bered,Fernanda (1) Carvalho,Fernando I.F. de (1) Cunha,Camila Pinto da (1) Pinheiro,José Baldin (1) Priolli,Regina Helena Geribello (1) Mais... Palavra-chave Genetic base (3) Bayesian method (1) COP (1) Coefficient of parentage (1) Core collection (1) Gene pool (1) Genetic vulnerability (1) Glycine max (1) Glycine max (L.) Merrill (1) SSR markers (1) Triticum aestivum L (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2013 (2) 2002 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Genetic variability in common wheat germplasm based on coefficients of parentage Genet. Mol. Biol. Bered,Fernanda; Barbosa-Neto,José F.; Carvalho,Fernando I.F. de. The characterization of genetic variability and an estimate of the genetic relationship among varieties are essential to any breeding program, because artificial crosses among less similar parents allow a larger segregation and the combination of different favorable alleles. Genetic variability can be evaluated in different ways, including the Coefficient of Parentage (COP), which estimates the probability of two alleles in two different individuals being identical by descent. In this study, we evaluated the degree of genetic relationship among 53 wheat genotypes, and identified the ancestor genotypes which contributed the most to the current wheat germplasm, as a prediction of the width of the genetic base of this cereal. The results revealed a mean COP... Tipo: Info:eu-repo/semantics/article Palavras-chave: COP; Genetic base; Gene pool; Triticum aestivum L. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000200015 The genetic base of Brazilian soybean cultivars: evolution over time and breeding implications Genet. Mol. Biol. Wysmierski,Philip Traldi; Vello,Natal Antonio. Genetic diversity is essential for crop breeding and one way to estimate it is through the concept of genetic base, which can be defined as the number of ancestors and their relative genetic contributions (RGC) to each cultivar. The RGC can be estimated through the coefficient of parentage between the ancestors and cultivars. Previous studies determined that the genetic base of Brazilian soybean was very narrow. The objective of this work was to evaluate the pedigree of 444 Brazilian soybean cultivars to estimate their genetic base. The cultivars were divided according to their release dates and according to their origin (public or private), and the genetic base for each group was also estimated. We found 60 ancestors, of which the top four (CNS, S-100,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic base; Glycine max; Coefficient of parentage; Genetic vulnerability. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000400014 Genetic structure and a selected core set of brazilian soybean cultivars Genet. Mol. Biol. Priolli,Regina Helena Geribello; Wysmierski,Philip Traldi; Cunha,Camila Pinto da; Pinheiro,José Baldin; Vello,Natal Antonio. Soybean is one of the most valuable and profitable oil crop species and a thorough knowledge of the genetic structure of this crop is necessary for developing the best breeding strategies. In this study, a representative collection of soybean cultivars recommended for farming in all Brazilian regions was genotyped using 27 simple sequence repeat (SSR) loci. A total of 130 alleles were detected, with an average allelic number of 4.81 per locus. These alleles determined the core set that best represented this soybean germplasm. The Bayesian analysis revealed the presence of two clusters or subgroups within the whole collection (435 soybean cultivars) and the core set (31 entries). Cultivars of similar origin (ancestral) were clustered into the same groups in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Core collection; Genetic base; Glycine max (L.) Merrill; Bayesian method; SSR markers. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300013 Registros recuperados: 3 Primeira ... 1 ... Última

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