Genetic diversity among soursop genotypes based on fruit production

  • Carlos Felipe Barrera Sánchez
  • Bruno Ermelindo Lopes
  • Paulo Eduardo Teodoro
  • Andrea Del Pilar Garcia
  • Leonardo de Azevedo Peixoto
  • Lidiane Aparecida Silva
  • Leonardo Lopes Bhering
Keywords: Annona muricata, clustering, plant breeding, biometry.

Abstract

This study aimed to estimate the genetic diversity among soursop genotypes in terms of fruit yield evaluated in different crop years. Sixteen measurements for fruit yield in 71 soursop genotypes were carried out from 2000 to 2016. Based on ANOVA it was verified the existence of genetic variability among genotypes in the different measurements (harvests). The genotypes were clustered according to their respective fruit yield averages in the 16 years as well as from their means obtained in each measurement year by the Scott-Knott test (p<0.05). To study genetic diversity among genotypes, three methodologies were compared: Tocher hierarchical optimization, UPGMA method and principal components. Five groups were formed for all clustering methods used. It was identified that crossings between genotypes 124 and 145 with genotypes 59 and 170 are potential to generate population with large genetic variability and high fruit yield average. New researches should be developed aiming to exploit the genetic variability among soursop genotypes based on the results found in this study.

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Author Biography

Paulo Eduardo Teodoro
Engenheiro Agrônomo pela Universidade Estadual de Mato Grosso do Sul (UEMS) e Engenheiro Civil pela Universidade Anhanguera-UNIDERP. Mestre em Agronomia - área de concentração: Produção Vegetal da Universidade Estadual de Mato Grosso do Sul, Unidade Universitária de Aquidauana (UEMS/UUA), onde participa de pesquisas na área de Fitotecnia com adubos verdes, braquiária, feijão, feijão-caupi, milho, milheto e soja nos seguintes temas: análises de adaptabilidade e estabilidade fenotípica, interação Genótipo x Ambiente, repetibilidade de caracteres, divergência e variabilidade genética, análise de trilha, modelos mistos (REML/BLUP), redes neurais artificiais (RNAs), inferência bayesiana, dentre outros. Desenvolve ainda pesquisas na área de geoestatística e climatologia com ênfase em: modelos matemáticos teóricos e métodos de interpolação, analise de cluster, ajuste de funções de densidade de probabilidade, precipitação provável e tamanho da amostra.
Published
2017-12-20
How to Cite
Sánchez, C. F. B., Lopes, B. E., Teodoro, P. E., Garcia, A. D. P., Peixoto, L. de A., Silva, L. A., & Bhering, L. L. (2017). Genetic diversity among soursop genotypes based on fruit production . Bioscience Journal, 34(1). https://doi.org/10.14393/BJ-v34n1a2018-37421
Section
Agricultural Sciences