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Adaptação genotípica regionalizada por regressão fatorial e covariáveis geográficas. Repositório Alice
COSTA NETO, G. M. F.; CASTRO, A. P. de; HEINEMANN, A. B.; DUARTE, J. B..
O objetivo deste trabalho foi apresentar um novo método para estudo da interação GA e recomendação regionalizada, que seja capaz de modelar a plasticidade fenotípica dos materiais na região-alvo e discriminar os tipos superiores por uma simples abordagem gráfica.
Tipo: Parte de livro Palavras-chave: Interação genótipo x ambiente; Genética Vegetal; Interação Genética; Quantitative genetics; Regression analysis; Genotype-environment interaction.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1016425
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Beyond taxonomy: prospects for understanding morphological diversity in the grasses (Poaceae) Darwiniana
Kellogg,Elizabeth A..
The grass family (Poaceae) is unusually well known taxonomically, with over 10,000 described species. These are characterized and classified according to a variety of morphological characters, particular those of the inflorescence and the spikelet but also a wealth of micromorphological and moleculary characters. Much data on the family is accessible electronically. Available phylogenies have identified 12 major lineages that are classified as subfamilies; within these subfamilies, especially for subfamily Panicoideae, the phylogeny is becoming increasingly clear. Developmental studies focus on the activity and fate of meristems throughout the plant, and illustrate how adult morphology arises. Analyses of quantitative trait loci (QTL) verify that some...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Poaceae; Phylogeny; Taxonomy; Development; Quantitative genetics; Gene expression.
Ano: 2006 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932006000100001
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Clonal selection of Eucalyptus grandis x Eucalyptus globulus for productivity, adaptability, and stability, using SNP markers. Repositório Alice
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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Combining ability of elite clones of Eucalyptus grandis and Eucalyptus urophylla with Eucalyptus globulus Genet. Mol. Biol.
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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Effective population size and genetic gain expected in a population of Coffea canephora. Repositório Alice
MISTRO, J. C.; RESENDE, M. D. V. de; FAZUOLI, L. C.; VENCOVSKY, R..
This work aimed to study the effective population size and genetic gain in a population of robusta coffee (Coffea canephora Pierre) and verify the possibility of using recurrent selection. The experiment comprised 25 treatments, consisting of 21 C. canephora progenies and four C. arabica (cultivars) grown in Brazil. The experimental design was a 5x5 quadruple balanced lattice, with 24 replications, with one plant per plot. Six harvests were performed in each plant. Statistical analysis was carried out using the mixed model methodology. The analysis showed high additive genetic variability, and the magnitude of the additive components prevailed over that of the dominance components. These facts revealed the plant population liability to undergo recurrent...
Tipo: Artigo de periódico Palavras-chave: Robusta coffee; Additive components; Genética quantitativa; Café; Endogamia; Quantitative genetics; Inbreeding.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110351
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Enhancing genetic fitness while maintaining genetic variability in Araucaria angustifolia. Repositório Alice
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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Estimates of genetic parameters of late seed-coat darkening of carioca type dry beans Ciência e Agrotecnologia
Araújo,Lilian Cristina Andrade de; Ramalho,Magno Antonio Patto; Abreu,Ângela de Fátima Barbosa.
In order to facilitate commercialization of cultivars of carioca type dry beans, the grains must have the lightest possible cream color and this phenotype must be persistent (late seed-coat darkening). There are reports of genetic variability for this trait. The objectives of this study were to obtain information regarding genetic control of the trait, with emphasis on the estimate of heritability and if it varies according to days after harvest, to verify the effect of locations and/or crop season on seed-coat darkening of the grains and to estimate the genetic and phenotypic correlations of the trait with cooking time, tannin content and grain yield. F2:3 and F2:4 progenies derived from crossing of the cultivar BRSMG Madrepérola (late seed-coat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris L.; Genetic plant breeding; Quantitative genetics; Grain quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200003
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Estimation of genetic parameters in the analysis of square lattice experiment group Bragantia
VIANA,JOSÉ MARCELO SORIANO; REGAZZI,ADAIR JOSÉ.
Aiming to demonstrate how to obtain unbiased estimates of genetic parameters of base populations, unaffected by genotype x environment effects, this paper presents the variance and covariance components of the intra-block analysis of a group of square lattice experiments and the estimators of the components associated to treatment effect. Random model and mixed models with environment effect fixed and other effects random are considered. In the analysis with treatments not corrected for blocks/replications/environments, the estimators of the variance and covariance components due to treatment effect are different from those of the analysis considering the complete block model. Data from two experiments of a breeding program of Eucalyptus pyrocarpa were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Quantitative genetics; Genetic parameters; Variance components; Covariance components; Joint analysis; Square lattice.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000100019
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Estimation of genetic parameters in the square lattice analysis Bragantia
VIANA,JOSÉ MARCELO SORIANO; REGAZZI,ADAIR JOSÉ.
This paper shows how to obtain unbiased estimates of genetic parameters of base populations, e.g., genotypic variance among families, heritability on a family mean basis, genotypic correlation and direct and indirect expected genetic gains, when the sampled families were evaluated in square lattice experiment. The theoretical part presents the variance and covariance components of the intra-block analysis of square lattice and the estimators of the components associated to treatment effect, considering the ordinary least squares method. In the analysis with treatments not corrected for blocks/replications, the estimator of the component due to treatment effect is equal to that of the analysis considering the complete block model. Experimental data from a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Quantitative genetics; Genetic parameters; Variance components; Covariance components; Square lattice.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000100018
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Estimativa de coeficientes de correlação e trilha em gerações segregantes de trigo hexaplóide. Repositório Alice
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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Evolution and development: some insights from evolutionary theory Anais da ABC (AABC)
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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GENES - a software package for analysis in experimental statistics and quantitative genetics - doi: 10.4025/actasciagron.v35i3.21251 Agronomy
Cruz, Cosme Damião; Universidade Federal de Viçosa.
GENES is a software package used for data analysis and processing with different biometric models and is essential in genetic studies applied to plant and animal breeding. It allows parameter estimation to analyze biological phenomena and is fundamental for the decision-making process and predictions of success and viability of selection strategies. The program can be downloaded from the Internet (http://www.ufv.br/dbg/genes/genes.htm or http://www.ufv.br/dbg/biodata.htm) and is available in Portuguese, English and Spanish. Specific literature (http://www.livraria.ufv.br/) and a set of sample files are also provided, making GENES easy to use. The software is integrated into the programs MS Word, MS Excel and Paint, ensuring simplicity and effectiveness in...
Palavras-chave: Software; Statistical analysis; Genetic analysis; Quantitative genetics; Biometry software análise estatística análise genética genética quantitativa biometria..
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/21251
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Genetic basis of gametogenesis in diploid and triploid Pacific oysters, Crassostrea gigas ArchiMer
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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Genetic control of number of flowers and pod set in common bean. Repositório Alice
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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Genetic potential of common bean parents for plant architecture improvement Scientia Agricola
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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Genetic variability during four cycles of recurrent selection in rice PAB
Morais Júnior,Odilon Peixoto de; Melo,Patrícia Guimarães Santos; Morais,Orlando Peixoto de; Colombari Filho,José Manoel.
Abstract: The objective of this work was to estimate genetic and phenotypic parameters among progenies of the CNA6 population of upland rice (Oryza sativa) for grain yield and plant height in four cycles of recurrent selection, in order to evaluate the genetic variability and the genotype × location interaction. The experimental data were obtained from yield trials of S0:2 progenies, which were carried out in the experimental design of Federer’s augmented blocks, without replications for progenies within each location. The effect of S0:2 progenies was significant in all cycles for grain yield and in the first three cycles for plant height, indicating the maintenance of the population’s genetic potential to generate transgressive progenies. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa; Genotype × environment interaction; Population improvement; Quantitative genetics; Variance components.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001101033
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Genetic variation and effective population size in Dipteryx alata progenies in pederneiras, São Paulo, Brazil. Repositório Alice
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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Genetic variation for growth at one and two summers of age in the common carp (Cyprinus carpio L.): Heritability estimates and response to selection ArchiMer
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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Genetic variation in second generation Pinus elliottii var. Elliottii. Repositório Alice
AGUIAR, A. V. de; KIERAS, W. S.; SILVA, M. S. C. da; SANTOS, W. dos; SHIMIZU, J. Y.; MORAES, M. L. T. de; SOUSA, V. A. de.
Tipo: Separatas Palavras-chave: Espécie exótica; Melhoramento genético; Genetic parameters.; Crescimento; Pinus Elliottii.; Parâmetro Genético; Growth traits; Quantitative genetics; Tree breeding..
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/974844
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Hardwood tree genomics: unlocking woody plant biology. Repositório Alice
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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