REML/BLUP methodology for selection intraspecific hybrids of Paspalum notatum Flügge by multivariate analysis
| Autor: | DIÓGENES C. SILVEIRA, ROBERTO LUIS WEILER, ANDRÉ P. BRUNES, CARINE SIMIONI, ANNAMARIA MILLS, JÚLIA LONGHI, MARCOS VINICIUS S. CORRÊA, CARLA NAUDERER, ARTHUR VALENTINI, WELITON M. DOS SANTOS, MIGUEL DALL’AGNOL |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 95, Iss suppl 2 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1678-2690 0001-3765 |
| DOI: | 10.1590/0001-3765202320230137 |
| Popis: | Abstract The Paspalum genus has potential for further genetic improvement because of its adaptability to different ecosystems and production of high yields for grazing livestock. We estimate the genetic parameters of 195 intraspecific P. notatum hybrids using Restricted Maximum Likelihood (REML), followed by selection based on Best Linear Unbiased Prediction (BLUP) through multivariate analysis. The intraspecific hybrids studied showed considerable genetic variability in the evaluated forage traits, displaying their potential for progression in subsequent stages of the genetic improvement program. Notably, plant height emerged as an important trait for indirect selection to enhance forage production. The use of the REML/BLUP procedure proves to be a robust tool for data analysis, particularly for perennial species. Furthermore, multivariate analysis based on BLUPs should be used in the selection process within breeding programs. Based on the BLUP values, hybrids D3, D16, C17, C2 and B17 were identified as superior for forage production, and they hold promise for future breeding programs for future breeding initiatives aimed at direct selection to improve yield. |
| Databáze: | Directory of Open Access Journals |
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