Breeding new sugarcane clones by mixed models under genotype by environmental interaction

Gonçalves, Gabriel Moreno Bernardo; Viana, Alexandre Pío; Resende, Marcos Deon Vilela de

doi:10.1590/s0103-90162014000100009

Cited by 13 publications

(13 citation statements)

References 7 publications

(12 reference statements)

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“…The classification of accessions tolerant to PPD followed the same order for the two criteria ( i ĝ + µ and ), although estimates of the mean genotypic values were of low magnitude because the latter criterion considers the capitalization of the average interaction to reduce the mean value of the trait (less PPD severity). Similar observations were reported in sugarcane, in which the parameter permitted the capitalization of a larger proportion of sugar yield trait (Gonçalves et al, 2014). However, those authors warned that this superiority is only capitalized when the varieties are planted in areas with the same G x E interaction patterns.…”

Section: Genotypic Values Of the Ppd Tolerancesupporting

confidence: 64%

“…Unlike that observed in the present study, Farias Neto et al (2013) reported complete agreement of the three most productive cassava genotypes based on Si, Ai, and Zi parameters. Gonçalves et al (2014) also demonstrated that all five sugarcane clones selected according to their Zi parameter also ranked as having the highest sugar yield. Therefore, those authors demonstrated an order of clone maintenance based on the Si, Ai, and Zi parameters, indicating that these methods have a certain degree of agreement between the positions of genotypes.…”

Section: Estimates Of Stability and Adaptability For Ppd Tolerancementioning

confidence: 85%

“…However, these strategies are impracticable for economic and technical reasons due to the high cost of their implementation in raw materials with low added value. In contrast, the development of cassava varieties that are more tolerant to PPD may represent a viable and low-cost method of generating roots that have high durability after harvest and hence better root utilization both for human consumption and industry (Fukuda, 2005;Morante et al, 2010). Since the 19', identifying sources of PPD tolerance has been one of the research priorities listed by the Food and Agriculture Organization of the United Nations (FAO) and the Cassava Biotechnology Network (Wenham, 1995).…”

Section: Introductionmentioning

confidence: 99%

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Variation in cassava germplasm for tolerance to post-harvest physiological deterioration

Venturini

Santos

Vildoso³

et al. 2016

Genet. Mol. Res.

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ABSTRACT. Tolerant varieties can effectively control post-harvest physiological deterioration (PPD) of cassava, although knowledge on the genetic variability and inheritance of this trait is needed. The objective of this study was to estimate genetic parameters and identify sources of tolerance to PPD and their stability in cassava accessions. Roots from 418 cassava accessions, grown in four independent experiments, were evaluated for PPD tolerance 0, 2, 5, and 10 days post-harvest. Data were transformed into area under the PPD-progress curve (AUP-PPD) to quantify tolerance. Genetic parameters, stability (Si), adaptability (Ai), and the joint analysis of stability and adaptability (Zi) were obtained via residual maximum likelihood (REML) and best linear unbiased prediction (BLUP) methods. Variance in the genotype (G) x environment (E) interaction and genotypic variance were important for PPD tolerance. Individual broad-sense heritability ( , Si, Ai, and Zi, respectively, compared with the overall mean for each parameter. These results demonstrate the variability and potential of cassava germplasm to introduce PPD tolerance in commercial varieties.

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Section: Genotypic Values Of the Ppd Tolerancesupporting

confidence: 64%

Section: Estimates Of Stability and Adaptability For Ppd Tolerancementioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

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Variation in cassava germplasm for tolerance to post-harvest physiological deterioration

Venturini

Santos

Vildoso³

et al. 2016

Genet. Mol. Res.

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“…It also generates results in the unit itself, or in the scale of the evaluated trait, which can be interpreted directly as genetic values, which is not allowed by other methods. Moreover, this model also allows of additional inferences, such as: the selection of specific genotypes for each location; selection of stable genotypes in different locations; selection of genotypes (with high adaptability) which are responsive to the improvement of the environment; and the simultaneous selection for yield, stability, and adaptability (Gonçalves et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous selection for yield, stability, and adaptability of carioca and black beans

Santos

Costa

Nascimento

et al. 2018

Pesq. agropec. bras.

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The objective of this work was to determine the efficiency of a simultaneous selection for yield, stability, and adaptability of bean genotypes of the carioca and black groups. In the 2016 harvest, two experiments were carried out in the state of Pernambuco, Brazil: one for the carioca group, with 20 genotypes, in the municipalities of Caruaru, Arcoverde, and Belém de São Francisco; and the other for the black group, with 12 genotypes, in the municipalities of Caruaru and Arcoverde. The parameters were estimated by mixed models, and selection was performed by the harmonic mean of the relative performance of genetic values, using three strategies: selection based on the predicted genetic value, without interaction; selection based on the predicted genetic value, considering each location; and simultaneous selection for grain yield, stability, and adaptability. The environments affected the phenotypic expression of the carioca bean genotypes, indicating specific adaptation. The average heritability for grain yield showed high values for black bean genotypes, which is a favorable condition for selection, and low values for carioca bean genotypes. The black bean genotypes CNFP 15684, 'BRS Esteio', CNFP 15678, CNFP 15697, CNFP 15695, and 'IPR Uirapuru' show the best performances in the studied environments, simultaneously considering grain yield, adaptability, and stability.

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“…The simultaneous selection for yield, stability, and adaptability using mixed models can be accomplished by the harmonic mean of the relative performance of genetic values (HMRPGV) method (Carbonell et al, 2007;Gonçalves et al, 2014). This method, which was first proposed by Resende (2004), is similar to the methods of Annicchiarico (1992) and Lin and Binns (1988), and allows the simultaneous selection for yield, stability, and adaptability and considers phenotypic effects as random; therefore, it provides genotypic stability and adaptability.…”

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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Breeding new sugarcane clones by mixed models under genotype by environmental interaction

Cited by 13 publications

References 7 publications

Variation in cassava germplasm for tolerance to post-harvest physiological deterioration

Variation in cassava germplasm for tolerance to post-harvest physiological deterioration

Simultaneous selection for yield, stability, and adaptability of carioca and black beans

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

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