Estimation of genetic parameters and prediction of genotypic values in common beans using mixed models#

Delfini, Vania Moda Cirino Jessica; Neto, Leandro Simões Azeredo Gonçalves José dos Santos

doi:10.9755/ejfa.2018.v30.i12.1884

Cited by 3 publications

(7 citation statements)

References 13 publications

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“…The results of the individual (Table 1) and joint analyses (Table 2) showed differences among genotypes and among environments for all traits, which has been reported in other studies on common bean (Alvares et al, 2016;Corrêa et al, 2016;Delfini et al, 2018;Silva et al, 2018). Even with the previous selection of lines (Alvares et al, 2016), there was still variability among them within each population.…”

Section: Resultssupporting

confidence: 74%

“…Under those conditions, analyses of adaptability and stability can assist in identifying promising lines. For grain yield in common bean, several studies have confirmed the importance of the genotype by environment interaction (Alvares et al, 2016;Corrêa et al, 2016;Delfini et al, 2018;Di Prado et al, 2019). However, works of this type are not frequent for seed-coat darkening, 100-grain weight, plant architecture, and resistance to lodging (Alvares et al, 2016;Delfini et al, 2018;Silva et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Selection of carioca common bean lines with slow darkening

Pereira

Mendonça

Rodrigues

et al. 2021

Pesq. agropec. bras.

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The objective of this work was to evaluate the interaction between genotypes and environment for seed-coat darkening of common bean (Phaseolus vulgaris) seeds, in order to select lines that combine slow darkening, upright plants, resistance to lodging, and higher yield and 100-grain weight, with good adaptability and stability for these traits. Forty four pre-selected lines, originating from crosses between one cultivar with slow darkening and prostrate plants and four cultivars with normal darkening and upright plants, were evaluated in field trials conducted in 15 environments (combinations of locations, crop seasons, and years). Considering the mean values, adaptability, and stability for each isolated trait, most of the lines presented satisfactory performance: 75% for slow darkening, 48% for high yield, 59% for upright plants, 84% for resistance to lodging, and 68% for 100-grain weight. The effects of environments and of the genotype by environment interaction are important for the five studied traits. The CNFC 16754 and CNFC 16820 lines present slow seed-coat darkening, high yield and 100-grain weight, more upright plant architecture, and greater resistance to lodging, besides high adaptability and stability for these traits, which shows their potential for recommendation as new cultivars and confirms that it is possible to join desirable phenotypes for the five traits evaluated.

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Section: Resultssupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Selection of carioca common bean lines with slow darkening

Pereira

Mendonça

Rodrigues

et al. 2021

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…low Ac value obtained for YLD is a consequence of the high influence of the environment for the trait, making it difficult to select the best accessions. Delfini et al [40] estimated genetic parameters for 39 Brazilian bean cultivars and obtained a lower h 2 for YLD (0.12) than for other traits.…”

Section: Plos Onementioning

confidence: 99%

“…The absence of correlation between YLD and the other morpho-agronomic or biochemical traits is considered a complicating factor in the selection of genitors. Delfini et al [40] observed that YLD was correlated with traits related to seed morphology in black-type common bean, but with the number of seeds produced in carioca-type. These facts are related to the objectives of breeding programs in Brazil.…”

Section: Plos Onementioning

confidence: 99%

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Morpho-agronomic, biochemical and molecular analysis of genetic diversity in the Mesoamerican common bean panel

et al. 2021

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The common bean (Phaseolus vulgaris L.) is of great importance to the food and nutritional security of many populations, and exploitation of the crop’s genetic diversity is essential for the success of breeding programs. Thus, the aim of the present study was to evaluate the genetic diversity of 215 common bean accessions, which included cultivars, obsolete cultivars, improved lines, and landraces using morpho-agronomic and biochemical traits, and amplified fragment length polymorphism markers (AFLP). Genetic parameters, box plots, Pearson’s correlation analysis, and Ward’s hierarchical clustering were used to analyze the data. The Jaccard similarity coefficient and neighbour-joining clustering method were used for molecular analysis. A wide variability among the accessions was observed for morpho-agronomic and biochemical traits. Selective accuracy (Ac) and broad-sense heritability (h2) values were high to intermediate for all traits, except seed yield. Ward’s hierarchical clustering analysis generated six groups. AFLP analysis also revealed significant differences among the accessions. There was no correlation between the differences based on genetic markers and those based on morpho-agronomic and biochemical data, which indicates that both datasets are important for elucidating the differences among accessions. The results of the present study indicate great genetic diversity among the evaluated accessions.

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Genetic variability, adaptability and, stability of safflower genotypes developed for the Brazilian conditions by REML/BLUP

et al. 2021

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Safflower (Carthamus tinctorius L.) has stood out as an oilseed crop with potential for cultivation in Brazil and can be inserted in the already consolidated production systems. However, obtaining adapted genotypes is essential for crop development, and the study of genetic variability and agronomic performance in different regions contributes to the recommendation of new cultivars. However, the genotype × environment interaction can influence the selection and recommendation of a given genotype for a region of cultivation and hinder the breeder's work. The use of mixed models allows the evaluation of genotype performance without the influence of the genotype × environment interaction, which makes recommending a genotype for a region more accurate. Four experiments were carried out in different regions of Brazil (Bauru‐SP, Botucatu‐SP and, Campo Novo do Parecis‐MT) to evaluate 10 safflower genotypes in the final stage of breeding. The genetic variability of genotypes was analyzed through similarity analysis, as well as the stability and adaptability of genotypes through mixed models. Wide variability was found between the evaluated genotypes. The use of mixed models allowed the identification of safflower genotypes with high stability and adaptability of the grain and oil yield for cultivation in Brazil.

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Estimation of genetic parameters and prediction of genotypic values in common beans using mixed models#

Cited by 3 publications

References 13 publications

Selection of carioca common bean lines with slow darkening

Selection of carioca common bean lines with slow darkening

Morpho-agronomic, biochemical and molecular analysis of genetic diversity in the Mesoamerican common bean panel

Genetic variability, adaptability and, stability of safflower genotypes developed for the Brazilian conditions by REML/BLUP

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