Estimation of genetic parameters for in vitro oil palm characteristics ( Elaeis guineensis Jacq.) and selection of genotypes for cloning capacity and oil yield

Corrêa, Thais Roseli; Motoike, Sérgio Yoshimitsu; Coser, Sara Morra; Silveira, Gustavo da; Resende, Marcos Deon Vilela de; Chia, Gilson Sanchez

doi:10.1016/j.indcrop.2015.09.066

Cited by 16 publications

(15 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Heritability is the genetic parameter of greatest importance for application in plant breeding programs (Corrêa et al, 2015). Its relevance is related to its ability to show how the genetic effects are presented in the individual's phenotype, since it is the genetic value that interests and influences the next generation (Falconer and Mackay, 1996).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Breeding of Acrocomia aculeata using genetic diversity parameters and correlations to select accessions based on vegetative, phenological, and reproductive characteristics

et al. 2016

View full text Add to dashboard Cite

ABSTRACT. Macaw palm (Acrocomia aculeata) is a promising species for use in biofuel production, and establishing breeding programs is important for the development of commercial plantations. The aim of the present study was to analyze genetic diversity, verify correlations between traits, estimate genetic parameters, and select different accessions of A. aculeata in the Macaw Palm Germplasm Bank located in Universidade Federal de Viçosa, to develop a breeding program for this species. Accessions were selected based on precocity (PREC), total spathe (TS), diameter at breast height (DBH), height of the first spathe (HFS), and canopy area (CA). The traits were evaluated in 52 accessions during the 2012/2013 season and analyzed by restricted estimation maximum likelihood/best linear unbiased predictor procedures. Genetic diversity resulted in the formation of four groups by Tocher's clustering method. The correlation analysis showed it was possible to have indirect and early selection for the traits PREC and DBH. Estimated genetic parameters strengthened the genetic variability verified by cluster analysis. Narrow-sense heritability was classified as moderate (PREC, TS, and CA) to high (HFS and DBH), resulting in strong genetic control of the traits and success in obtaining genetic gains by selection. Accuracy values were classified as moderate (PREC and CA) to high (TS, HFS, and DBH), reinforcing the success of the selection process. Selection of accessions for PREC, TS, and HFS by the rank-average method permits selection gains of over 100%, emphasizing the successful use of the accessions in breeding programs and obtaining superior genotypes for commercial plantations.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The lower rank-average values indicate a more favorable combination of traits established for the selection in the classification rank (Corrêa et al, 2015).…”

Section: Genetic Parameters and Selection Indexmentioning

confidence: 99%

Breeding of Acrocomia aculeata using genetic diversity parameters and correlations to select accessions based on vegetative, phenological, and reproductive characteristics

et al. 2016

View full text Add to dashboard Cite

show abstract

“…All oil palm plants used in the study were regenerated from E. guineensis embryogenic calluses (AM33 genotype), supplied by Professor Sergio Motoike of Universidade Federal de Viçosa, located in the state of Minas Gerais, Brazil. The protocols and procedures implemented to regenerate the plants are described in Corrêa et al (2015). The embryogenic calluses were transferred to a regeneration medium on January 2016 and kept in a BOD chamber at 30°C and a 16/8-hour light/dark photoperiod.…”

Section: Methodsmentioning

confidence: 99%

Morphophysiological responses of young oil palm plants to salinity stress

Vieira

Silva

Casari

et al. 2020

Pesq. agropec. bras.

View full text Add to dashboard Cite

The objective of this work was to assess the morphophysiological characteristics and the ionic imbalance in the substrate, roots, and leaves of young oil palm (Elaeis guineensis) plants under different levels of saline stress, following a substrate salinization protocol in which the level of salt was known. Bifid oil palm plants were subjected to different NaCl rates (0.0, 0.5, 1.0, 1.5, and 2.0 g NaCl per 100 g substrate on a dry basis), and their morphophysiological responses were evaluated for a period of 12-14 days. This protocol generated different levels of stress due to the gradients of electrical conductivity and water potential in the saturation extract of the substrate, according to the added NaCl. Based on the rates of real evapotranspiration and leaf gas exchange, the osmotic effect of the salt reflected negatively on leaf temperature, on the chlorophyll content index, and on the chlorophyll fluorescence variables. The increase in Na and Cl levels in the saturation extract culminated with the increasing availability of Ca, K, and Mg in the solution and their accumulation in the leaves. However, the plants poorly absorbed Na and Cl. The obtained results are indicative that, for a better characterization of the osmotic and ionic phases of salinity stress, it is necessary to reduce the applied level of salinity stress and to increase the evaluation period.

show abstract

“…Experiments with perennial species, such as C. arabica , usually present unbalanced data due to adversities in the field over time. Therefore, the use of the mixed models methodology, Residual or Restricted Maximum Likelihood/Best Linear Unbiased Prediction (REML/BLUP) (Patterson and Thompson, 1971; Henderson, 1975) has allowed, from phenotypic information, the accurate, and unbiased prediction of genetic values of individuals (Resende and Thompson, 2004; Viana et al, 2011; Barbosa et al, 2012; Ferreira et al, 2012; Pereira et al, 2013; Corrêa et al, 2015; Spinelli et al, 2015). For coffee, genetic gains have also been reported using molecular markers in studies on genetic diversity (Sousa et al, 2017), genetic maps (Pestana et al, 2015; Moncada et al, 2016), and assisted selection (Alkimim et al, 2017; Favoretto et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Early Selection Enabled by the Implementation of Genomic Selection in Coffea arabica Breeding

et al. 2019

View full text Add to dashboard Cite

Genomic Selection (GS) has allowed the maximization of genetic gains per unit time in several annual and perennial plant species. However, no GS studies have addressed Coffea arabica, the most economically important species of the genus Coffea. Therefore, this study aimed (i) to evaluate the applicability and accuracy of GS in the prediction of the genomic estimated breeding value (GEBV); (ii) to estimate the genetic parameters; and (iii) to evaluate the time reduction of the selection cycle by GS in Arabica coffee breeding. A total of 195 Arabica coffee individuals, belonging to 13 families in generation of F2, susceptible backcross and resistant backcross, were phenotyped for 18 agronomic traits, and genotyped with 21,211 SNP molecular markers. Phenotypic data, measured in 2014, 2015, and 2016, were analyzed by mixed models. GS analyses were performed by the G-BLUP method, using the RKHS (Reproducing Kernel Hilbert Spaces) procedure, with a Bayesian algorithm. Heritabilities and selective accuracies were estimated, revealing moderate to high magnitude for most of the traits evaluated. Results of GS analyses showed the possibility of reducing the cycle time by 50%, maximizing selection gains per unit time. The effect of marker density on GS analyses was evaluated. Genomic selection proved to be promising for C. arabica breeding. The agronomic traits presented high complexity for they are controlled by several QTL and showed low genomic heritabilities, evidencing the need to incorporate genomic selection methodologies to the breeding programs of this species.

show abstract

Estimation of genetic parameters for in vitro oil palm characteristics ( Elaeis guineensis Jacq.) and selection of genotypes for cloning capacity and oil yield

Cited by 16 publications

References 11 publications

Breeding of Acrocomia aculeata using genetic diversity parameters and correlations to select accessions based on vegetative, phenological, and reproductive characteristics

Breeding of Acrocomia aculeata using genetic diversity parameters and correlations to select accessions based on vegetative, phenological, and reproductive characteristics

Morphophysiological responses of young oil palm plants to salinity stress

Early Selection Enabled by the Implementation of Genomic Selection in Coffea arabica Breeding

Contact Info

Product

Resources

About