Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass

Recurrent selection based on combining ability has been successfully used in tetraploid bahigrass (Paspalum notatum Flu ̈gge ́) to accumulate heterotic effects and exploit hybrid vigor. However, its efficiency depends on an accurate selection of the best genotypes to form a new recombinant populatio...

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Autores principales: Marcón, Florencia, Brugnoli, Elsa Andrea, Rodrigues Nunes, A. José, Gutierrez, Valeria A., Martıínez, Eric Javier, Acuña, Carlos Alberto
Formato: Artículo
Lenguaje:Inglés
Publicado: Springer Nature 2025
Materias:
Progeny test
General combining ability
BLUP
Biplot analysis
Selection indexdex
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/59339
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-59339
record_format dspace
spelling I48-R184-123456789-593392025-12-15T12:00:07Z Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass Marcón, Florencia Brugnoli, Elsa Andrea Rodrigues Nunes, A. José Gutierrez, Valeria A. Martıínez, Eric Javier Acuña, Carlos Alberto Progeny test General combining ability BLUP Biplot analysis Selection indexdex Recurrent selection based on combining ability has been successfully used in tetraploid bahigrass (Paspalum notatum Flu ̈gge ́) to accumulate heterotic effects and exploit hybrid vigor. However, its efficiency depends on an accurate selection of the best genotypes to form a new recombinant population. The objective of this work was to assess the general combining ability of female parents of bahiagrass based on the performance of their progeny for agronomic and morphological traits using a mixed model approach, biplot analysis and selection index. Twenty-nine half-sib families were evaluated. They were generated by crossing 29 sexual tetraploid genotypes from a sexual synthetic tetraploid population and a group of apomictic tetraploid genotypes. Agronomic and morphological traits were analyzed using a mixed model approach (BLUP). The multi-trait analysis was based on a biplot analysis and a selection index using the family BLUPs. BLUP analysis showed significant differences among families for most of the evaluated traits. Sexual female parents of families 5, 9, 8, 28, 21 and 16 were identified as those with greater general combining ability. Biplot showed variability among families and allowed identifying six sexual parents with greater general combining ability. The same sexual parents that exhibited greater general combining ability by BLUP were identified with greater general combining ability by biplot. Selection index was variable among half-sib families and allowed identifying the same best sexual parents that BLUP and biplot. The three analysis methods were equally effective to estimate general combining ability of a group of sexual parents of tetraploid bahiagrass based on the performance of their progeny. 2025-12-15T11:29:22Z 2025-12-15T11:29:22Z 2021 Artículo Marcón, Florencia, et al., 2021. Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass. Euphytica. Alemania: Springer Nature, vol. 217, no. 208, p. 1-11. E-ISSN 1573-5060. 0014-2336 http://repositorio.unne.edu.ar/handle/123456789/59339 eng https://link.springer.com/article/10.1007/s10681-021-02942-5 closedAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 1-11 application/pdf Springer Nature Euphytica, 2021, vol. 217, no. 208, p. 1-11.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Progeny test
General combining ability
BLUP
Biplot analysis
Selection indexdex
spellingShingle Progeny test
General combining ability
BLUP
Biplot analysis
Selection indexdex
Marcón, Florencia
Brugnoli, Elsa Andrea
Rodrigues Nunes, A. José
Gutierrez, Valeria A.
Martıínez, Eric Javier
Acuña, Carlos Alberto
Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
topic_facet Progeny test
General combining ability
BLUP
Biplot analysis
Selection indexdex
description Recurrent selection based on combining ability has been successfully used in tetraploid bahigrass (Paspalum notatum Flu ̈gge ́) to accumulate heterotic effects and exploit hybrid vigor. However, its efficiency depends on an accurate selection of the best genotypes to form a new recombinant population. The objective of this work was to assess the general combining ability of female parents of bahiagrass based on the performance of their progeny for agronomic and morphological traits using a mixed model approach, biplot analysis and selection index. Twenty-nine half-sib families were evaluated. They were generated by crossing 29 sexual tetraploid genotypes from a sexual synthetic tetraploid population and a group of apomictic tetraploid genotypes. Agronomic and morphological traits were analyzed using a mixed model approach (BLUP). The multi-trait analysis was based on a biplot analysis and a selection index using the family BLUPs. BLUP analysis showed significant differences among families for most of the evaluated traits. Sexual female parents of families 5, 9, 8, 28, 21 and 16 were identified as those with greater general combining ability. Biplot showed variability among families and allowed identifying six sexual parents with greater general combining ability. The same sexual parents that exhibited greater general combining ability by BLUP were identified with greater general combining ability by biplot. Selection index was variable among half-sib families and allowed identifying the same best sexual parents that BLUP and biplot. The three analysis methods were equally effective to estimate general combining ability of a group of sexual parents of tetraploid bahiagrass based on the performance of their progeny.
format Artículo
author Marcón, Florencia
Brugnoli, Elsa Andrea
Rodrigues Nunes, A. José
Gutierrez, Valeria A.
Martıínez, Eric Javier
Acuña, Carlos Alberto
author_facet Marcón, Florencia
Brugnoli, Elsa Andrea
Rodrigues Nunes, A. José
Gutierrez, Valeria A.
Martıínez, Eric Javier
Acuña, Carlos Alberto
author_sort Marcón, Florencia
title Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
title_short Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
title_full Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
title_fullStr Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
title_full_unstemmed Evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
title_sort evaluating general combining ability for agromorphological traits in tetraploid bahiagrass
publisher Springer Nature
publishDate 2025
url http://repositorio.unne.edu.ar/handle/123456789/59339
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