A diallel model with repeatability information applied in an elephant grass breeding program.
Elephant grass is an allogamous perennial forage crop with asexual propagation, allowing plant breeders to explore heterosis and develop hybrids. However, selecting parents for diallel crossing schemes is a major hurdle in the development of hybrids. In addition, this perennial crop has several harvests, which increases the dataset size and the complexity of the statistical analyses. Here, we propose a diallel analysis based on linear mixed models with repeatability information to identify parents and hybrids, and the optimum number of harvests. We performed a complete diallel crossing of 11 parents with data from five harvests for morphological traits and two harvests for nutritive value traits. The diallel model with repeatability information aids in the estimation of the genetic effect of diallel analysis to infer the ideal number of harvests and genotype × harvest interaction. We observed that the specific combining ability (SCA) is more critical for morphoagronomic traits, while the general combining ability (GCA) has greater importance for traits related to nutritive value. Furthermore, we detected that five harvests were sufficient for the morphoagronomic traits with a coefficient of determination (R2 ) of 0.8; however, ten harvests were required for an R2 of 0.9. The model is a promising singleanalysis alternative for plant breeders to analyze a diallel with repeated measures and to estimate important parameters without incurring in additional financial costs.
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| Format: | Artigo de periódico biblioteca |
| Language: | eng |
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2024-08-05
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| Subjects: | Genetic selection, Repeated measures, Forragem, Forage, Specific combining ability, Heterosis, |
| Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1166222 https://doi.org/10.1590/1678-992X-2023-0045 |
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dig-alice-doc-11662222024-08-05T14:53:53Z A diallel model with repeatability information applied in an elephant grass breeding program. FERREIRA, R. A. D. C. PESSOA, T. V. de S. SILVA, F. F. e DIAS, K. O. das G. CARNEIRO, P. C. S. CRUZ, C. D. MACHADO, J. C. RICARDO AUGUSTO DINIZ CABRAL FERREIRA, UNIVERSIDADE FEDERAL DE VIÇOSA; TATIANA VILELA DE SOUZA PESSOA, UNIVERSIDADE FEDERAL DE VIÇOSA; FABYANO FONSECA E SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; KAIO OLIMPIO DAS GRAÇAS DIAS, UNIVERSIDADE FEDERAL DE VIÇOSA; PEDRO CRESCÊNCIO SOUZA CARNEIRO, UNIVERSIDADE FEDERAL DE VIÇOSA; COSME DAMIÃO CRUZ, UNIVERSIDADE FEDERAL DE VIÇOSA; JUAREZ CAMPOLINA MACHADO, CNPGL. Genetic selection Repeated measures Forragem Forage Specific combining ability Heterosis Elephant grass is an allogamous perennial forage crop with asexual propagation, allowing plant breeders to explore heterosis and develop hybrids. However, selecting parents for diallel crossing schemes is a major hurdle in the development of hybrids. In addition, this perennial crop has several harvests, which increases the dataset size and the complexity of the statistical analyses. Here, we propose a diallel analysis based on linear mixed models with repeatability information to identify parents and hybrids, and the optimum number of harvests. We performed a complete diallel crossing of 11 parents with data from five harvests for morphological traits and two harvests for nutritive value traits. The diallel model with repeatability information aids in the estimation of the genetic effect of diallel analysis to infer the ideal number of harvests and genotype × harvest interaction. We observed that the specific combining ability (SCA) is more critical for morphoagronomic traits, while the general combining ability (GCA) has greater importance for traits related to nutritive value. Furthermore, we detected that five harvests were sufficient for the morphoagronomic traits with a coefficient of determination (R2 ) of 0.8; however, ten harvests were required for an R2 of 0.9. The model is a promising singleanalysis alternative for plant breeders to analyze a diallel with repeated measures and to estimate important parameters without incurring in additional financial costs. 2024-08-05T14:53:53Z 2024-08-05T14:53:53Z 2024-08-05 2024 Artigo de periódico Scientia Agricola, v. 81, e20230045, 2024. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1166222 https://doi.org/10.1590/1678-992X-2023-0045 eng openAccess |
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| language |
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| topic |
Genetic selection Repeated measures Forragem Forage Specific combining ability Heterosis Genetic selection Repeated measures Forragem Forage Specific combining ability Heterosis |
| spellingShingle |
Genetic selection Repeated measures Forragem Forage Specific combining ability Heterosis Genetic selection Repeated measures Forragem Forage Specific combining ability Heterosis FERREIRA, R. A. D. C. PESSOA, T. V. de S. SILVA, F. F. e DIAS, K. O. das G. CARNEIRO, P. C. S. CRUZ, C. D. MACHADO, J. C. A diallel model with repeatability information applied in an elephant grass breeding program. |
| description |
Elephant grass is an allogamous perennial forage crop with asexual propagation, allowing plant breeders to explore heterosis and develop hybrids. However, selecting parents for diallel crossing schemes is a major hurdle in the development of hybrids. In addition, this perennial crop has several harvests, which increases the dataset size and the complexity of the statistical analyses. Here, we propose a diallel analysis based on linear mixed models with repeatability information to identify parents and hybrids, and the optimum number of harvests. We performed a complete diallel crossing of 11 parents with data from five harvests for morphological traits and two harvests for nutritive value traits. The diallel model with repeatability information aids in the estimation of the genetic effect of diallel analysis to infer the ideal number of harvests and genotype × harvest interaction. We observed that the specific combining ability (SCA) is more critical for morphoagronomic traits, while the general combining ability (GCA) has greater importance for traits related to nutritive value. Furthermore, we detected that five harvests were sufficient for the morphoagronomic traits with a coefficient of determination (R2 ) of 0.8; however, ten harvests were required for an R2 of 0.9. The model is a promising singleanalysis alternative for plant breeders to analyze a diallel with repeated measures and to estimate important parameters without incurring in additional financial costs. |
| author2 |
RICARDO AUGUSTO DINIZ CABRAL FERREIRA, UNIVERSIDADE FEDERAL DE VIÇOSA; TATIANA VILELA DE SOUZA PESSOA, UNIVERSIDADE FEDERAL DE VIÇOSA; FABYANO FONSECA E SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; KAIO OLIMPIO DAS GRAÇAS DIAS, UNIVERSIDADE FEDERAL DE VIÇOSA; PEDRO CRESCÊNCIO SOUZA CARNEIRO, UNIVERSIDADE FEDERAL DE VIÇOSA; COSME DAMIÃO CRUZ, UNIVERSIDADE FEDERAL DE VIÇOSA; JUAREZ CAMPOLINA MACHADO, CNPGL. |
| author_facet |
RICARDO AUGUSTO DINIZ CABRAL FERREIRA, UNIVERSIDADE FEDERAL DE VIÇOSA; TATIANA VILELA DE SOUZA PESSOA, UNIVERSIDADE FEDERAL DE VIÇOSA; FABYANO FONSECA E SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; KAIO OLIMPIO DAS GRAÇAS DIAS, UNIVERSIDADE FEDERAL DE VIÇOSA; PEDRO CRESCÊNCIO SOUZA CARNEIRO, UNIVERSIDADE FEDERAL DE VIÇOSA; COSME DAMIÃO CRUZ, UNIVERSIDADE FEDERAL DE VIÇOSA; JUAREZ CAMPOLINA MACHADO, CNPGL. FERREIRA, R. A. D. C. PESSOA, T. V. de S. SILVA, F. F. e DIAS, K. O. das G. CARNEIRO, P. C. S. CRUZ, C. D. MACHADO, J. C. |
| format |
Artigo de periódico |
| topic_facet |
Genetic selection Repeated measures Forragem Forage Specific combining ability Heterosis |
| author |
FERREIRA, R. A. D. C. PESSOA, T. V. de S. SILVA, F. F. e DIAS, K. O. das G. CARNEIRO, P. C. S. CRUZ, C. D. MACHADO, J. C. |
| author_sort |
FERREIRA, R. A. D. C. |
| title |
A diallel model with repeatability information applied in an elephant grass breeding program. |
| title_short |
A diallel model with repeatability information applied in an elephant grass breeding program. |
| title_full |
A diallel model with repeatability information applied in an elephant grass breeding program. |
| title_fullStr |
A diallel model with repeatability information applied in an elephant grass breeding program. |
| title_full_unstemmed |
A diallel model with repeatability information applied in an elephant grass breeding program. |
| title_sort |
diallel model with repeatability information applied in an elephant grass breeding program. |
| publishDate |
2024-08-05 |
| url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1166222 https://doi.org/10.1590/1678-992X-2023-0045 |
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| _version_ |
1807153384885583872 |