A.B. Baldoni
Diversity and genetic structure of the native Brazil nut tree (Bertholletia excelsa Bonpl.) population
The present study was carried out in a native Brazil nut tree population (Bertholletia excelsa Bonpl., Lecythidaceae) to assess its genetic diversity and structure. Ten microsatellite markers were used to genotype 198 adult trees (B. excelsa). The population presented high genetic diversity and inbreeding absence rates. The empirical Bayesian method showed three dis.. Read More»
Genet. Mol. Res. 16(3): gmr16039702
DOI: 10.4238/gmr16039702
Genetic diversity between and within half-sib families of Brazil nut tree (Bertholletia excelsa Bonpl.) originating from native forest of the Brazilian Amazon
Brazil nut tree is a species of economic importance for the Amazon region, known for the commercialization of its almonds. The objective of this work was to study the genetic diversity among half-sib progenies from different Brazil nut trees present in native forest in the municipality of Itaúba, MT, belonging to the Brazilian Amazon. In a native forest area .. Read More»
Genet. Mol. Res. 16(4): gmr16039839
DOI: 10.4238/gmr16039839
Hierarchical outcrossing among and within fruits in Bertholletia excelsa Bonpl. (Lecythidaceae) open-pollinated seeds
Knowing the mating patterns is important to determine the number of trees necessary for seed collection for conservation ex situ, tree breeding and environmental reforestation purposes. We investigated B. excelsa individuals and fruits, to check mating system index variations in a population by using open-pollinated seeds which were hierarchically sampled within and.. Read More»
Genet. Mol. Res. 17(1): gmr16039872
DOI: 10.4238/gmr16039872
Minimum number of measurements for evaluating Bertholletia excelsa
Repeatability studies on fruit species are of great importance to identify the minimum number of measurements necessary to accurately select superior genotypes. This study aimed to identify the most efficient method to estimate the repeatability coefficient (r) and predict the minimum number of measurements needed for a more accurate evaluation of Brazil nut tree (B.. Read More»
Genet. Mol. Res. 16(3): gmr16039783
DOI: 10.4238/gmr16039783
Contemporary pollen and seed dispersal in natural populations of Bertholletia excelsa (Bonpl.)
Due to the nutritional content and commercial value of its seeds, Bertholletia excelsa is one of the most important species exploited in the Amazon region. The species is hermaphroditic, insect pollinated, and its seeds are dispersed by barochory and animals. Because the fruit set is dependent on natural pollinator activity, gene flow plays a key role in fruit produ.. Read More»
Genet. Mol. Res. 16(3): gmr16039756
DOI: 10.4238/gmr16039756
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