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Oenocarpus distichus  presents economic, ecological, and dietary potential for pulp market processed  in natura . Germplasm conservation and genetic improvement depend on genetic divergence studies. The objective was to quantify genetic divergence in a native population of  O. distichus  genotypes based on fruit biometrics. The fruit length and width, fruit mass, pulp and seed, pulp and almond thickness, and pulp yield per fruit were evaluated. All fruit biometric characteristics of  O .  distichus  palms show genetic variability. Genetic variations among genotypes are essential for predicting heredity and heterosis, which are essential for improving  O .  distichus  production. Pulp yield and seed mass were negatively correlated. Almond thickness and pulp, seed mass and transverse diameter were positively correlated. Genetic distances between pair of genotypes ranged from 0.07 to 48.10 with three genetically distinct groups. The seed mass, almond thickness and transverse diameter contributed to genetic divergence. Heritability estimates the genetic control that can be obtained from  O .  distichus  germplasm. Correlations between the variable pair reduce the evaluation effort and the resources to measure the genotype allocations in heterogeneous groups presenting high genetic variability. This makes it possible to select individuals for hybridization programs with F1 generation gains. Correlation and relative contribution networks, based on relationships graphical between fruit biometric characteristics, allow the variables selection with less effort and fewer measurements.  O .  distichus  fruit biometric characters are efficient to quantify genetic divergence between genotypes.

Genetic divergence of native palms of Oenocarpus distichus considering biometric fruit variables