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Development and characterization of microsatellite markers for the Brazil nut tree Bertholletia excelsa Humb. &
Alessandra M M Reis1, Aline C Braga, Maristerra R Lemes
1Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, SGAN 916, Mod. B, Asa Norte, Brasília, DF 70790-160, Brazil Laboratório de Genética e Biologia Reprodutiva de Plantas, Instituto Nacional de Pesquisas na Amazônia (INPA), Av. André Araújo, 2936, Manaus, AM 69083-000, Brazil.
Abstract:
Twelve polymorphic microsatellite markers were developed for the Brazil nut (Bertholletia excelsa), one of the most valuable non-timber forest products from the Amazon, based on enrichment protocol. Six to 18 (mean 10.4) alleles per locus were identified and the expected heterozygosity ranged from 0.663 to 0.923 based on a screen of 40 individuals from one population of B. excelsa. The combined probabilities of genetic identity (8.39 × 10(-17) ) and paternity exclusion (0.999999) indicated that multilocus genotypes are likely to be unique allowing precise analyses of genetic structure, gene flow, and mating system of this economically important species.
