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Registros recuperados: 34 | |
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TORRES-DINI, D.; NUNES, A. C. P.; AGUIAR, A. V. de; NIKICHUK, N.; CENTURIÓN, C.; CABRERA, M.; MORAES, M. L. T.; RESENDE, M. D. V. de; SEBBENN, A. M.. |
In Uruguay, reforestations with Eucalyptus sp. is of fundamental importance to supply paper, pulp, and wood production. This study investigates genetic, productivity, stability, and adaptability parameters in the selection of Eucalypts grandis x Eucalyptus globulus full-sib hybrid clones. The study was conducted in a clonal test, repeated in two different soils types, in Rio Negro State, Uruguay. The population was characterized phenotypically for diameter at breast height (dbh) and genotyped for SNP markers (EuCHIP60K chip). Mean dbh was similar between sites and the genotype?environment interaction was simple. We found high genotype correlation in clone performance between environments (0.708), indicating the possibility of selecting the same clones for... |
Tipo: Artigo de periódico |
Palavras-chave: Genética de populações; Genética quantitativa; Forest breeding; Gene markers; Eucalipto; Híbrido; Melhoramento genético vegetal; Eucalyptus; Hybrids; Plant breeding; Population genetics; Quantitative genetics. |
Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080981 |
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Bison,Odair; Ramalho,Magno Antonio Patto; Rezende,Gabriel Dehon Sampaio Peçanha; Aguiar,Aurélio Mendes; Resende,Marcos Deon Vilela de. |
In Brazil, eucalyptus breeding programs for cellulose production has used two species, Eucalyptus grandis and Eucalyptus urophylla. Nevertheless, it would be useful to introgress alleles from other species to improve wood quality and volume. The objective of this research was to evaluate the hybrid potential of elite clones of E. grandis and E. urophylla from the Aracruz Celulose Company S. A. with Eucalyptus globulus clones. To do so, six elite clones were crossed with ten E. globulus clones in a half-diallel mating design. The resulting hybrid combinations as well as the four check clones were evaluated in randomized complete block experiments with single plant plots and 40 replicates from September to October 2001 at three Brazilian sites, Aracruz and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diallel; Eucalyptus breeding; Hybrids; Quantitative genetics; Wood quality. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300019 |
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MACHADO, J. A. R.; AGUIAR, A. V. de; PONTINHA, A. de A. S.; SOUZA, B. M.; SEBBENN, A. M.; HALLSWORTH, J. E.; SOUSA, V. A. de; FREITAS, M. L. M.. |
Araucaria angustifolia fornece madeira, sementes comestíveis e fármacos e possui uma ecologia única (antes compartilhada com a dos dinossauros), mas agora está ameaçada de extinção. Aqui, avaliou-se e reconciliou-se objetivos contrários de aumentar a aptidão genética e manter a variabilidade genética durante a conservação ex-situ de A. angustifolia em um teste de procedencias e progênie para melhorar o vigor de crescimento. Após 33 anos do plantio, a altura, o diâmetro à altura do peito, volume e a sobrevivência das árvores foram medidos. Os componentes da variância e as estimativas dos parâmetros genéticos foram determinados utilizando o método REML/BLUP. Dezesseis cenários de seleção foram testados usando duas estratégias: seleção entre e dentro das... |
Tipo: Artigo de periódico |
Palavras-chave: Conservação genética; Genética quantitativa; Melhoramento florestal; Genetic conservation; Araucária Angustifólia; Pinheiro do Paraná; Árvore Conífera; Árvore Gimnosperma; Melhoramento Genético Vegetal; Coniferous forests; Gymnospermae; Tree breeding; Quantitative genetics. |
Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1138975 |
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HARTWIG, I.; CARVALHO, F. I. F. de; OLIVEIRA, A. C. de; VIEIRA, E. A.; SILVA, J. A. G. da; BERTAN, I.; RIBEIRO, G.; FINATTO, T.; REIS, C. E. S. dos; BUSATO, C. C.. |
Tipo: Artigo de periódico |
Palavras-chave: Genética quantitativa; Herdabilidade.; Trigo; Triticum Aestivum.; Heritability; Quantitative genetics; Wheat.. |
Ano: 2007 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/559214 |
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DAVID,JEAN R.. |
Developmental biology and evolutionary biology are both mature integrative disciplines which started in the 19th century and then followed parallel and independent scientific pathways. Recently, a genetical component has stepped into both disciplines (developmental genetics and evolutionary genetics) pointing out the need for future convergent maturation. Indeed, the Evo-Devo approach is becoming popular among developmental biologists, based on the facts that distant groups share a common ancestry, that precise phylogenies can be worked out and that homologous genes often play similar roles during the development of very different organisms. In this essay, I try to show that the real future of Evo-Devo thinking is still broader. The evolutionary theory is... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quantitative genetics; Multicellularity; Analogy; Homology; Sexual reproduction. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000300008 |
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Normand, Julien; Ernande, Bruno; Boudry, Pierre. |
Today, triploidy is the most common method used to genetically improve marine bivalve aquaculture production. In the Pacific oyster Crassostrea gigas, triploidy affects many traits. The most proeminent one is reproductive effort, which is greatly reduced compared to diploids. The combined effects of physiological trade-offs between survival, growth and reproduction together with the reduction of reproductive effort in triploids explains the global enhancement of yield observed. However, the sterility of triploid oysters is only partial and some triploid individuals can show normal gametogenesis (i.e. similar to diploids), especially under warm conditions. In diploid oysters, the heritability of reproductive effort has been shown to be relatively low, but a... |
Tipo: Text |
Palavras-chave: Parentage analysis; Triploidy; Oyster; Quantitative genetics; Gametogenesis. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/acte-4525.pdf |
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MARTINS, E. S.; PINTO JÚNIOR, R. A.; ABREU, A. F. B.; RAMALHO, M. A. P.. |
This article aimed to study the genetic control of some flowers and pod set of common bean and to verify if its estimate varies with environmental conditions and gene pool. A complete diallel was used among six lines, but no reciprocal ones. The treatments were evaluated in three harvests/generations - F2, F3, and F4 - in 2015/2016, in a randomized complete block design with four replications. The plot consisted of 3 lines with 4 m. In the center line, a receptacle to collect the aborted flowers/pods was placed. The traits considered were the number of flowers/plant (N), the percentage of pod set (V), and the production of grain/plant (W). A joint diallel analysis was performed, and the correlations between N, V, and W were estimated. N was 31.9 on... |
Tipo: Artigo de periódico |
Palavras-chave: Grain production; Feijão; Phaseolus vulgaris; Melhoramento genético vegetal; Plant breeding; Diallel analysis; Quantitative genetics; Gene pool; Beans. |
Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085739 |
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Silva,Vanessa Maria Pereira e; Carneiro,Pedro Crescêncio Souza; Menezes Júnior,José Ângelo Nogueira de; Carneiro,Vinícius Quintão; Carneiro,José Eustáquio de Souza; Cruz,Cosme Damião; Borém,Aluizio. |
In common bean (Phaseolus vulgaris L.) breeding, plant selection that associate erect plant architecture, high yield, and grains with good commercial acceptance has been the choice of breeders. Thus, this study aimed to evaluate potential parents, to obtain promising segregating populations that associate high yield, erect plant architecture and carioca grain type, as well as to obtain information on heterosis, general and specific combining ability of these parents regarding grain yield and traits related to plant architecture. Fourteen common bean lines were crossed under a partial diallel scheme. Group 1 was composed by eight erect plant lines and group 2 by six carioca grain type lines. The F1's plants from the crosses and the 14 parents were evaluated... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L.; General and specific combining ability; Partial diallel; Quantitative genetics. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000300005 |
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SANTOS, W. dos; AGUIAR, A. V. de; SOUZA, D. C. L.; DINI, D. G. T.; SOUZA, F. B. de; DALASTRA, C.; MACHADO, J. A. R.; SOUSA, V. A. de; MORAES, M. L. T. de; FREITAS, M. L. M.; SEBBENN, A. M.. |
Foram avaliados os parâmetros genéticos e fenotípicos da bifurcação (BIF), forma do fuste (RET) e diâmetro à altura do peito (DAP) para as procedências e progênies de Dipteryx alata. O experimento foi instalado em delineamento em blocos ao acaso, com 43 tratamentos (26 e 17 progênies dos municípios de Três Lagoas e Brasília no Estado de Mato Grosso do Sul e Distrito Federal, respectivamente) e cinco plantas por parcela. O espaçamento entre plantas foi de 3 x 3 metros. A análise dos dados foi realizada pelo método REML / BLUP (máxima verossimilhança restrita melhor predição linear não viesada). Foram detectadas diferenças significativas entre progênies apenas para DAP. Os valores genéticos individuais variaram de 3,7 a 21,7% para BIF e DAP; A variação... |
Tipo: Artigo de periódico |
Palavras-chave: Conservação ex situ; Genética quantitativa; Árvore tropical; Tropical trees; Dipteryx Alata; Ex situ conservation; Quantitative genetics. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103299 |
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Vandeputte, Marc; Kocour, M; Mauger, S; Rodina, M; Launay, A; Gela, D; Dupont Nivet, M; Hulak, M; Linhart, O. |
We estimated the heritability of growth-related traits (weight and length at ages one summer, first spring and two summers) in a synthetic mirror carp strain (HSM) in the Czech Republic. The four generation pedigree was obtained from parentage assignment of three factorial mating designs with microsatellite markers, and included 195 fish without phenotypes (48 G0, 147 G1) and 1321 fish with phenotypes (674 G2, 647 G3). Animal model heritability estimates over generations were in the range 0.21-0.33 for length and in the range 0.31-0.44 for weight. The genetic correlation between length and weight was high (0.97). The correlations between growth measurements in the first and in the second summer of age were moderate to low (0.34-0.67). Divergent selection... |
Tipo: Text |
Palavras-chave: Quantitative genetics; Performance; Microsatellites; Parentage assignment; Realized heritability; Selection response; Selection; Growth; Heritability; Cyprinus carpio; Common carp. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4076.pdf |
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TUSKAN, G. A.; GROOVER, A. T.; SCHMUTZ, J.; DIFAZIO, S. P.; MYBURG, A.; GRATTAPAGLIA, D.; SMART, L. B.; YIN, T.; AURY, J.-M.; KREMER, A.; LEROY, T.; LE PROVOST, G.; PLOMION, C.; CARLSON, J. E.; RANDALL, J.; WESTBROOK, J.; GRIMWOOD, J.; MUCHERO, W.; JACOBSON, D.; MICHENER, J. K.. |
Tipo: Separatas |
Palavras-chave: Tree habit; Somatic mutations; Evolutionary ecology; Adaptive traits; Comparative genomics; Quantitative genetics. |
Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103196 |
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Registros recuperados: 34 | |
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