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Biochemical traits useful for the determination of genetic variation in a natural population of Myracrodruon urundeuva PAB
Abdala,Ludmila; Moraes,Mario Luiz Teixeira de; Rechia,Carem Gledes Vargas; Giorgini,Jarbas Francisco; Sá,Marco Eustáquio de; Polizeli,Maria de Lourdes Teixeira de Moraes.
The objectives of this work were to analyze seeds from 20 trees of aroeira (Myracrodruon urundeuva Fr. All.) of a natural population located in the region of Selvíria, State of Mato Grosso do Sul, Brazil, in order to evaluate their protein, lipid and carbohydrate contents, and to estimate their genetic variation. A completely randomized experimental design consisting of 20 treatments (families) was set up, with two replications. Four types of proteins were detected: albumin (35.0 to 107.3 mg/g seed), globulin (3.4 to 9.3 mg/g), prolamin (60.0 to 135.2 mg/g) and glutelin (118.0 to 286.0 mg/g). The lipid content varied between 200 and 334 mg/g seed. The total sugars also varied (26.5 to 46.3 mg/g seed), with a predominance of polyols (arabinitol, mannitol,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Myracrodruon urundeuva; Seed; Proteins; Lipids; Carbohydrates; Evaluation.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000700003
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Estimation of variance components and prediction of breeding values in rubber tree breeding using the REML/BLUP procedure Genet. Mol. Biol.
Furlani,Renata Capistrano Moreira; Moraes,Mario Luiz Teixeira de; Resende,Marcos Deon Vilela de; Furlani Junior,Enes; Gonçalves,Paulo de Souza; Valério Filho,Walter Veriano; Paiva,João Rodrigues de.
The present paper deals with estimation of variance components, prediction of breeding values and selection in a population of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell.-Arg.] from Rio Branco, State of Acre, Brazil. The REML/BLUP (restricted maximum likelihood/best linear unbiased prediction) procedure was applied. For this purpose, 37 rubber tree families were obtained and assessed in a randomized complete block design, with three unbalanced replications. The field trial was carried out at the Experimental Station of UNESP, located in Selvíria, State of Mato Grosso do Sul, Brazil. The quantitative traits evaluated were: girth (G), bark thickness (BT), number of latex vessel rings (NR), and plant height (PH). Given the unbalanced...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Linear mixed model; Effective population size; Breeding strategies; Rubber tree improvement.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000200017
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Ganho genético com base no tamanho efetivo populacional de progênies de seringueira PAB
Arantes,Flávio Cese; Gonçalves,Paulo de Souza; Scaloppi Junior,Erivaldo José; Moraes,Mario Luiz Teixeira de; Resende,Marcos Deon Vilela de.
O objetivo deste trabalho foi estimar os ganhos genéticos de um teste de progênies de seringueira para a produção de borracha seca e, com base no maior tamanho efetivo populacional e maior ganho genético, obter os melhores indivíduos. Foram utilizadas 30 progênies de meios-irmãos, provenientes de sementes de polinização mista - alogamia e autogamia - de testes clonais no Estado de São Paulo. Utilizou-se o delineamento experimental de blocos ao acaso, com 30 tratamentos (progênies), 3 repetições e parcelas lineares de 10 plantas, em um espaçamento de 3x3 m, o que totalizou 900 plantas úteis. Aos três anos, o perímetro, a 50 cm do solo (PA50), e a produção de borracha seca (PBS) foram avaliadas por meio do teste precoce de produção Hamaker Morris-Mann (HMM)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hevea brasiliensis; Índice multiefeitos; REML/BLUP; Teste precoce HMM.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001200012
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Mating system in Myracrodruon urundeuva (Anarcadiaceae): implications for conservation genetics Rev. Bras. Bot.
Gaino,Ana Paula Silva Campos; Moraes,Mario Luiz Teixeira de; Moreira,Juliana Prado; Cardin,Laila Toniol; Moraes,Marcela Aparecida; Silva,Alexandre Marques da; Freitas,Miguel Luiz Menezes; Sebbenn,Alexandre Magno.
The aims of this study were to investigate the mating system of a fragmented population of the dioecious tropical tree Myracrodruon urundeuva Allemão, using five microsatellite loci and the mixed mating and correlated mating models. The study was conducted in the Estação Ecológica de Paulo de Farias (436 ha), where the population occupies about 142 ha. The mating system was estimated using 514 open-pollinated offspring, collected from 30 seed-trees. Estimates of the multilocus outcrossing rate confirm that the species is dioecious (t m = 1.0). Low levels of mating among relatives were detected in the population (1 - t s = 0.020). The estimate of paternity correlation (r p(m)) indicated that offsprings were composed of mixtures of half-sibs and full-sibs,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Correlated matings; Fragmentation; Microsatellite; Variance effective population size.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000400008
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Stability and adaptability for wood volume in the selection of Eucalyptus saligna in three environments PAB
Oliveira,Thiago Wendling Gonçalves de; Paula,Rinaldo Cesar de; Moraes,Mario Luiz Teixeira de; Alvares,Clayton Alcarde; Miranda,Aline Cristina; Silva,Paulo Henrique Muller da.
Abstract: The objective of this work was to evaluate the genotype x environment (GxE) interaction in open-pollinated Eucalyptus saligna progenies for simultaneous selection for greater stability and adaptability for wood volume, as well as to compare the selection strategies through combined and individual analyses in three environments. Three experiments were conducted in a randomized complete block design, with four replicates and six plants per plot, with 102 to 122 progenies. Three years after planting, survival rate and wood volume were evaluated. The genetic parameters were estimated by the maximum restricted likelihood and best linear unbiased prediction (REML/Blup) methods, and the stability and adaptability analysis was conducted using the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest breeding; Genetic selection; Genotype × environment interaction; REML/Blup.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500611
Registros recuperados: 5
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