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

Pesquisa Agropecuária Tropical

Lázaro José Chaves¹  Flávia Maria Alves²  Gabriella Queiroz de Almeida²  Herika Paula Pessoa²  João Romero Amaral Santos de Carvalho Rocha³ 

[1] Universidade Federal de Goiás, Escola de Agronomia, Goiânia, GO, Brasil. ;Universidade Federal de Viçosa, Departamento de Fitotecnia, Viçosa, MG, Brasil. ;Universidade Federal de Viçosa, Departamento de Genética e Melhoramento, Viçosa, MG, Brasil. ;

关键词: brazilian savanna;    native fruit;    mangaba;   

DOI  :  10.1590/1983-40632021v5167226

来源: DOAJ

【 摘 要 】

HancorniaspeciosaGomesisoneofthenativefruitspecies 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 selectionoftraitsbasedontheFAI-BLUPindexmayberecommended while maintaining the potential variability in the populationresultingfromtherecombination.Theindividualselection proved to be more effective than the selection based onprogeniesmeans,becauseitexploitsthegeneticvariationamong and within progenies.

【 授权许可】

Unknown