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      Biometry and genetic diversity of paradise nut genotypes (Lecythidaceae) Translated title: Biometria e diversidade genética de genótipos de sapucaia (Lecythidaceae)

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          Abstract

          Abstract: The objective of this work was to evaluate the biometry of fruit and seed, and the diversity of paradise nut (Lecythis pisonis) genotypes. Fruit of 12 paradise nut genotypes were collected from plants in the northern region of the state of Espírito Santo and in the eastern region of the state of Minas Gerais, Brazil. Data were subjected to the analysis of variance, and means of the different genotypes were compared by Scott-Knott’s mean clustering test. The phenotypic diversity was analyzed using Mahalanobis’ generalized distance, and clustering, by Tocher’s optimization method and the graphical dispersion of canonical variables. The relative contribution of the characters to diversity was assessed by Singh’s method. The paradise nut genotypes differed regarding the morphological characteristics of fruit and seed. Genotype 1 produced the largest number of seed per fruit, and genotypes 2 and 7 produced the largest seed. These genotypes were clustered into different groups, which is indicative of their potential combination for use in genetic breeding programs.

          Translated abstract

          Resumo: O objetivo deste trabalho foi avaliar a biometria de frutos e sementes e a diversidade de genótipos de sapucaia (Lecythis pisonis). Frutos de 12 genótipos de sapucaia foram coletados de plantas na região norte do Estado do Espírito Santo e leste do Estado de Minas Gerais. Os dados foram submetidos à análise de variância, e as médias dos diferentes genótipos foram comparadas pelo teste de agrupamento de Scott-Knott. A diversidade fenotípica foi analisada por meio da distância de Mahalanobis, e o agrupamento, pelo método de otimização de Tocher e por dispersão gráfica a partir das variáveis canônicas. A contribuição relativa das características para diversidade foi avaliada pelo método de Singh. Os genótipos de sapucaia divergiram quanto às características morfológicas de frutos e sementes. O genótipo 1 produziu o maior número de sementes por fruto, e os genótipos 2 e 7 produziram sementes de maiores dimensões. Esses genótipos foram separados em grupos distintos, o que é indício de sua combinação para uso em programas de melhoramento.

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          Most cited references 27

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          Effects of Brazil nut consumption on selenium status and cognitive performance in older adults with mild cognitive impairment: a randomized controlled pilot trial.

          Oxidative stress is closely related to cognitive impairment, and the antioxidant system may be a potential therapeutic target to preserve cognitive function in older adults. Selenium plays an important antioxidant role through selenoproteins. This controlled trial aimed to investigate the antioxidant and cognitive effects of the consumption of Brazil nuts, the best selenium food source.
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            Native foods from Brazilian biodiversity as a source of bioactive compounds

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              Genetic structure of Bertholletia excelsa populations from the Amazon at different spatial scales

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                pab
                Pesquisa Agropecuária Brasileira
                Pesq. agropec. bras.
                Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira (Brasília, DF, Brazil )
                0100-204X
                1678-3921
                May 2019
                : 54
                : 0
                Affiliations
                Alegre Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Departamento de Agronomia Brazil jcufes@ 123456bol.com.br
                São Mateus Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Departamento de Ciências Agrárias e Biológicas Brazil e.romais.s@ 123456gmail.com
                Jerônimo Monteiro Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Departamento de Ciências Florestais e da Madeira Brazil thuannyer@ 123456gmail.com
                Article
                S0100-204X2019000102502
                10.1590/s1678-3921.pab2019.v54.00240

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 37, Pages: 0
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                Crop Science

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