Selection of Hancornia speciosa germplasm accessions based on the FAI-BLUP index

Authors

Abstract

Hancornia speciosa Gomes is one of the native fruit species most frequent in the Brazilian Savanna. Studies on the genetic variability of quantitative traits for this species are scarce and the identification of accessions with the best agronomic traits may support strategies for conservation and breeding programs. This study aimed to estimate the genetic diversity of accessions from the H. speciosa germplasm collection of the Universidade Federal de Goiás (Goiânia, Goiás state, Brazil) and rank them based on a selection index combining eleven agronomic traits.  A total of 192 individual accessions from 57 progenies, from 29 natural populations, were evaluated. The data were subjected to multivariate analysis and the individuals and progenies evaluated using the FAI-BLUP selection index. The Tocher cluster analysis allowed grouping the progenies into ten divergent clusters and the individuals into 18 divergent clusters. The simultaneous selection of traits based on the FAI-BLUP index may be recommended while maintaining the potential variability in the population resulting from the recombination. The individual selection proved to be more effective than the selection based on progenies means, because it exploits the genetic variation among and within progenies.

KEYWORDS: Brazilian Savanna, native fruit, mangaba.

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Author Biographies

  • Gabriella Queiroz de Almeida, Universidade Federeal de Viçosa

    Universidade Federal de Viçosa (UFV), Departamento de Fitotecnia, Campus Universitário, 36.570-900, Viçosa, MG, Brazil

  • João Romero Amaral Santos de Carvalho Rocha, Universidade Fedeeral de Viçosa

    Universidade Federal de Viçosa (UFV), Departamento de Genética e Melhoramento, Campus Universitário, 36.570-900, Viçosa, MG, Brazil

  • Herika Paula Pessoa, Federal University of Goiás

    Universidade Federal de Viçosa (UFV), Departamento de Fitotecnia, Campus Universitário, 36.570-900, Viçosa, MG, Brazil

  • Flávia Maria Alves, Federal University of Viçosa

    Universidade Federal de Viçosa (UFV), Departamento de Fitotecnia, Campus Universitário, 36.570-900, Viçosa, MG, Brazil

  • Lázaro José Chaves, Federal University of Goiás

    Professor Titular, área de Genética e Melhoramento de Plantas, Setor de Melhoramento de Plantas EA-UFG

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Published

2021-07-19

Issue

Vol. 51 (2021)

Section

Special Supplement: Cerrado [Brazilian Savanna]

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.

How to Cite

ALMEIDA, G. Q. DE et al. Selection of Hancornia speciosa germplasm accessions based on the FAI-BLUP index. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], v. 51, p. e67226, 19 Jul.2021.