Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers
Abstract
There are about 126 cataloged species within the Pinus genus, and the genus is the second most common in planted forests in Brazil, covering about 1.7 million hectares. Among the species used in commercial plantations, P. elliottii is particularly important; its wood is mainly used in the furniture industry, for resin production, and in some cases in the chemical and pharmaceutical industry for its volatile derivatives. The objective of this study was to conduct a quantitative and molecular analysis of six-year-old stands of P. elliottii at two sites, one located on Fazenda Monteiro in the city of Apiaí, and the other on Fazenda Palmeiras, Ribeirão Branco, both located in São Paulo state (SP), Brazil. Height and circumference at breast height (CBH) were analyzed. Genetic parameters were estimated, with the coefficients of genetic variation for height ranging from 2.03% to 2.62% and from 2.43% to 4.51% for CBH. At Fazenda Monteiro, the narrow-sense heritability and within progeny heritability values for height (0.23; 0.20) and CBH (0.26; 0.22) were considered medium. In Fazenda Palmeira, the values obtained for narrow-sense heritability were considered low magnitude for CBH (0.04; 0.02), while for height they were considered medium (0.09). Low magnitude values were found for heritability within progeny (0.08). Molecular analyses of heterozygosity showed low levels of heterozygosity, but with the possibility of gains. The GxE data showed that progeny F30 performed best in both environments, but a breeding program for both environments is not recommended. The analysis of quantitative and molecular characteristics facilitates and improves the accuracy of selection processes performed by breeders.
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How to cite
Melchert, G. F.; Marcolin, G.; Machado, R. T. D. P.; Neto, L. J. S.; Tambarussi, E. V. (2023). Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers. TreeDimensional Journal, 10(e023011), 1-9. https://doi.org/10.55746/treed.2023.01.011.
@article{melchert2023,
title={Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers},
author={Melchert, Guilherme Ferreira and Marcolin, Giovanna and Machado, Renato Tadeu de Proença and Neto, Luiz José Sguario and Tambarussi, Evandro Vagner},
journal={TreeDimensional Journal},
year={2023},
volume={10},
number={e023011},
pages={1-9},
doi={10.55746/treed.2023.01.011}
}TY - JOUR AU - Melchert, Guilherme Ferreira AU - Marcolin, Giovanna AU - Machado, Renato Tadeu de Proença AU - Neto, Luiz José Sguario AU - Tambarussi, Evandro Vagner TI - Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers JO - TreeDimensional Journal PY - 2023 VL - 10 IS - e023011 SP - 1 EP - 9 DO - 10.55746/treed.2023.01.011 AB - There are about 126 cataloged species within the Pinus genus, and the genus is the second most common in planted forests in Brazil, covering about 1.7 million hectares. Among the species used in commercial plantations, P. elliottii is particularly important; its wood is mainly used in the furniture industry, for resin production, and in some cases in the chemical and pharmaceutical industry for its volatile derivatives. The objective of this study was to conduct a quantitative and molecular analysis of six-year-old stands of P. elliottii at two sites, one located on Fazenda Monteiro in the city of Apiaí, and the other on Fazenda Palmeiras, Ribeirão Branco, both located in São Paulo state (SP), Brazil. Height and circumference at breast height (CBH) were analyzed. Genetic parameters were estimated, with the coefficients of genetic variation for height ranging from 2.03% to 2.62% and from 2.43% to 4.51% for CBH. At Fazenda Monteiro, the narrow-sense heritability and within progeny heritability values for height (0.23; 0.20) and CBH (0.26; 0.22) were considered medium. In Fazenda Palmeira, the values obtained for narrow-sense heritability were considered low magnitude for CBH (0.04; 0.02), while for height they were considered medium (0.09). Low magnitude values were found for heritability within progeny (0.08). Molecular analyses of heterozygosity showed low levels of heterozygosity, but with the possibility of gains. The GxE data showed that progeny F30 performed best in both environments, but a breeding program for both environments is not recommended. The analysis of quantitative and molecular characteristics facilitates and improves the accuracy of selection processes performed by breeders. KW - Mixed Models KW - Quantitative Genetics KW - Microsatellites Markers KW - G×E ER -
Melchert, G. F.; Marcolin, G.; Machado, R. T. D. P.; Neto, L. J. S.; Tambarussi, E. V. (2023). Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers. TreeDimensional Journal, 10(e023011), 1-9. https://doi.org/10.55746/treed.2023.01.011. Import via Mendeley Web Importer using DOI 10.55746/treed.2023.01.011
Add to Zotero using DOI 10.55746/treed.2023.01.011 Melchert, G. F.; Marcolin, G.; Machado, R. T. D. P.; Neto, L. J. S.; Tambarussi, E. V. (2023). Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers. TreeDimensional Journal, 10(e023011), 1-9. https://doi.org/10.55746/treed.2023.01.011.
Melchert, G. F.; Marcolin, G.; Machado, R. T. D. P.; Neto, L. J. S.; Tambarussi, E. V. (2023). Quantitative and molecular analysis of Pinus elliottii Engelm. at six years of age using microsatellites markers. TreeDimensional Journal, 10(e023011), 1-9. https://doi.org/10.55746/treed.2023.01.011.