Genotype selection by REML/BLUP methodology in a segregating population from an interspecific Passiflora spp. crossing

Santos, Eileen Azevedo; Viana, Alexandre Pío; Freitas, Jôsie Cloviane de Oliveira; Rodrigues, Daniele Lima; Tavares, Rozane Franci de Moraes; Paiva, Claudia Lougon; Souza, Margarete Magalhães

doi:10.1007/s10681-015-1367-6

Cited by 59 publications

(50 citation statements)

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“…This high genetic correlation was expected because fruits with more pulp tend to have thinner skin, which is an objective of the UENF passion fruit breeding programme. Santos et al (2015) evaluated hybrids of Passiflora for the main traits using the REML/BLUP method and identified superior genotypes derived from interspecific cross between P. edulis and P. setacea for generation advance in the sour passion fruit breeding programme aimed at resistance to Cowpea aphid-borne mosaic virus (CABMV). Oliveira, Fraife Filho, Freitas, Dantas, and Resende (2012) used the REML/BLUP methodology to rate F2 segregating populations of papaya and found high values of individual heritability for length and diameter of fruit and low values for SST.…”

Section: Resultsmentioning

confidence: 99%

<b>Prediction of genetic gains by selection indexes and REML/BLUP methodology in a population of sour passion fruit under recurrent selection

et al. 2017

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ABSTRACT. Breeding programmes must be improved to accelerate the development of new cultivars due to the commercial importance of passion fruit. This study compared four selection indexes and the REML/BLUP methodology in an assessment of predicted genetic gains in the traits of interest. A total of 81 full-sib progenies derived from the third cycle of recurrent selection were assessed for one harvest in one environment. The experiment was arranged in a randomized complete block design with five plants per plot. The following traits were assessed: number of fruits, total yield, fruit mass, fruit longitudinal diameter, fruit transverse diameter, fruit pulp percentage, shell thickness and content of soluble solids. The Mulamba & Mock index produced the best results for the selection of progenies. The REML/BLUP method was the most efficient and selected progenies with predicted genetic gains better than the selection indexes tested.Keywords: mixed models, Passiflora edulis Sims, predicted genotypic values, simultaneous selection.Predição de ganhos genéticos por índices de seleção e metodologia REML/BLUP em uma população de maracujá-azedo sob seleção recorrente RESUMO. Tendo em vista a importância do cultivo do maracujazeiro, é de grande relevância o aprimoramento dos trabalhos de melhoramento genético a fim de possibilitar com maior rapidez o desenvolvimento de novas cultivares. O objetivo do presente trabalho foi comparar quatro índices de seleção e o método REML/BLUP na avaliação de ganhos genéticos preditos das características de interesse. Foram avaliadas 81 progênies de irmãos-completos, oriundas do terceiro ciclo de seleção recorrente, em uma safra, em um ambiente. O delineamento experimental utilizado foi o de blocos ao acaso com parcelas constituídas por cinco plantas. As características avaliadas foram: número de frutos, produção total, massa do fruto, diâmetro longitudinal do fruto, diâmetro transversal do fruto, porcentagem de polpa do fruto, espessura da casca e teor de sólidos solúveis totais. O índice de seleção de Mulamba & Mock proporcionou os melhores resultados para a seleção das progênies. O método REML/BLUP mostrou-se mais eficiente, tendo selecionado progênies com ganhos genéticos preditos melhores que os dos índices de seleção testados.Palavras-chave: modelos mistos, Passiflora edulis Sims, valores genotípicos preditos, seleção simultânea.

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Section: Resultsmentioning

confidence: 99%

<b>Prediction of genetic gains by selection indexes and REML/BLUP methodology in a population of sour passion fruit under recurrent selection

et al. 2017

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“…Studies of adaptability and stability in the cowpea have been conducted using traditional methods that were based on analysis of variance and regression (Almeida et al, 2013;Nunes et al, 2014;Santos et al, 2015b. The use of the HMRPGV method is an advance, because it is based on an analysis of predicted genotypic values using mixed models.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous selection for cowpea (Vigna unguiculata L.) genotypes with adaptability and yield stability using mixed models

Fe¹,

Teodoro

Rodrigues

et al. 2016

Genet. Mol. Res.

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ABSTRACT. The aim of this study was to select erect cowpea (Vigna unguiculata L.) genotypes simultaneously for high adaptability, stability, and yield grain in Mato Grosso do Sul, Brazil using mixed models. We conducted six trials of different cowpea genotypes in 2005 and 2006 in Aquidauana, Chapadão do Sul, Dourados, and Primavera do Leste. The experimental design was randomized complete blocks with four replications and 20 genotypes. Genetic parameters were estimated by restricted maximum likelihood/best linear unbiased prediction, and selection was based on the harmonic mean of the relative performance of genetic values method using three strategies: selection based on the predicted breeding value, having considered the performance mean of the genotypes in all environments (no interaction effect); the performance in each environment (with an interaction effect); and the simultaneous selection for grain yield, stability, and adaptability. The MNC99542F-5 and MNC99-537F-4 genotypes could be grown in various environments, as they exhibited high grain yield, adaptability, and stability. The average heritability of the genotypes was moderate to high and the selective accuracy was 82%, indicating an excellent potential for selection.

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“…The highest estimates for h 2 ap were observed for production per plant, number of fruits and fruit mass (0.84, 0.90, and 0.41, respectively). Under such conditions, selection can be more effective with the use of information from the full-sib progenies, since genotypes with these traits can obtain gains in production per plant, number of fruits and fruit mass, suitable not only for fresh food market, but also for the industrial sector (Campos et al, 2013;Santos et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…However, high individual heritability, related to inheritable additive effects, shows that individual selection can be effective in selecting superior segregating genotypes (Santos et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Associations between vegetative and production traits in guava tree full-sib progenies

Santos

Preisigke

Viana

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to estimate the genetic parameters and to evaluate the associations between vegetative and yield characteristics, in full-sib progenies of guava tree (Psidium guajava). The following characteristics were evaluated: yield per plant, number of fruits, fruit mass, plant height, stem diameter, and canopy volume. The estimation of genetic parameters was obtained by the REML/Blup procedure. Based on the breeding values predicted by Blup, the genetic and canonical correlations were estimated, and the genetic correlation coefficients were unfolded into direct and indirect effects on the character yield per plant using path analysis. Genetic variability was estimated for number of fruits (567.66) and yield per plant (11.818), with high genetic correlation (0.9045), indicating simultaneous selection. Indirect selection did not promote simultaneous gains for yield per plant with the primary components number of fruits and fruit mass, making it difficult to obtain guava cultivars with high yield, number of fruits, and fruit mass. The vegetative traits had little effect on yield, number of fruits, and fruit mass.Index terms: Psidium guajava, correlations, path analysis, REML/Blup. Associações entre características vegetativas e de produção em progênies de irmãos completos de goiabeiraResumo -O objetivo deste trabalho foi estimar os parâmetros genéticos e avaliar as associações entre características vegetativas e de produção em progênies de irmãos completos de goiabeira (Psidium guajava). Avaliaram-se as seguintes características: produção por planta, número de frutos, massa de frutos, altura da planta, diâmetro de caule e volume de copa. A estimativa de parâmetros genéticos foi obtida com o procedimento REML/Blup. Com base nos valores genéticos preditos pelo Blup, estimaram-se as correlações genéticas e canônicas, e realizou-se o desdobramento dos coeficientes de correlação genética em efeitos diretos e indiretos sobre a característica produção por planta, com análise de trilha. Estimou-se variabilidade genética para número de frutos (567,66) e produção por planta (11,818), com alta correlação genética (0,9045), o que evidencia seleção simultânea. A seleção indireta não promoveu ganhos simultâneos para produção por planta a partir dos componentes primários número de frutos e massa de frutos, o que dificulta a obtenção de cultivares de goiabeira com alta produção, número de frutos e massa de fruto. As características vegetativas apresentaram pouca influência na produção, no número de frutos e na massa de frutos.Termos para indexação: Psidium guajava, correlações, análise de trilha, REML/Blup.

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Genotype selection by REML/BLUP methodology in a segregating population from an interspecific Passiflora spp. crossing

Cited by 59 publications

References 19 publications

<b>Prediction of genetic gains by selection indexes and REML/BLUP methodology in a population of sour passion fruit under recurrent selection

<b>Prediction of genetic gains by selection indexes and REML/BLUP methodology in a population of sour passion fruit under recurrent selection

Simultaneous selection for cowpea (Vigna unguiculata L.) genotypes with adaptability and yield stability using mixed models

Associations between vegetative and production traits in guava tree full-sib progenies

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