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Phenotypic variability of fruits and seeds in natural populations of Hymenaea stigonocarpa (Mart. Ex Hayne)

ABSTRACT Hymenaea stigonocarpa (Mart. Ex Hayne), popularly known as jatobá-do-cerrado, is a fruit tree widely distributed in the Brazilian Savanna, has multiple uses and is a promising genetic resource. This study aimed to physically characterize fruits and seeds of H. stigonocarpa, as well as to es...

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Published in:Pesquisa agropecuária tropical 2021-01, Vol.51, p.e67292
Main Authors: Castro, Rodrigo Soares de, Gonçalves, Ariany Rosa, Braga-Ferreira, Ramilla dos Santos, Telles, Mariana Pires de Campos, Chaves, Lázaro José
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description ABSTRACT Hymenaea stigonocarpa (Mart. Ex Hayne), popularly known as jatobá-do-cerrado, is a fruit tree widely distributed in the Brazilian Savanna, has multiple uses and is a promising genetic resource. This study aimed to physically characterize fruits and seeds of H. stigonocarpa, as well as to estimate the phenotypic variability at three hierarchical levels: populations, mother trees within populations, and fruits/seeds within mother trees. Fruits from six mother trees were sampled from each of the 25 natural populations found in the Brazilian Savanna. The morphometric characterization of 742 fruits was carried out by evaluating 10 quantitative traits in fruits and seeds. In addition, comparative analyses were performed between the average values of H. stigonocarpa and the botanical variety H. stigonocarpa var. brevipetiolata. Significant phenotypic variations were noticed at all hierarchical levels. A high phenotypic differentiation among the populations was observed for quantitative traits (fruit mass and size, pulp mass and seed mass), being higher when H. stigonocarpa var. brevipetiolata was included in the analysis. RESUMO Hymenaea stigonocarpa (Mart. Ex Hayne), popularmente conhecida como jatobá-do-cerrado, é uma árvore frutífera amplamente distribuída no Cerrado, a qual possui múltiplos usos e é um recurso genético promissor. Objetivou-se caracterizar fisicamente frutos e sementes de H. stigonocarpa, bem como estimar a variabilidade fenotípica em três níveis hierárquicos: populações, matrizes dentro de populações e frutos/sementes dentro de matrizes. Frutos de seis matrizes foram amostrados de cada uma das 25 populações naturais encontradas no Cerrado. A caracterização morfométrica de 742 frutos foi realizada avaliando-se 10 caracteres quantitativos em frutos e sementes. Além disso, foram realizadas análises comparativas entre os valores médios de H. stigonocarpa e a variedade botânica H. stigonocarpa var. brevipetiolata. Variações fenotípicas significativas ocorreram em todos os níveis hierárquicos. Observou-se alta diferenciação fenotípica entre as populações para caracteres quantitativos (massa e tamanho do fruto, massa da polpa e da semente), a qual foi ainda maior quando H. stigonocarpa var. brevipetiolata foi incluída na análise
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Objetivou-se caracterizar fisicamente frutos e sementes de H. stigonocarpa, bem como estimar a variabilidade fenotípica em três níveis hierárquicos: populações, matrizes dentro de populações e frutos/sementes dentro de matrizes. Frutos de seis matrizes foram amostrados de cada uma das 25 populações naturais encontradas no Cerrado. A caracterização morfométrica de 742 frutos foi realizada avaliando-se 10 caracteres quantitativos em frutos e sementes. Além disso, foram realizadas análises comparativas entre os valores médios de H. stigonocarpa e a variedade botânica H. stigonocarpa var. brevipetiolata. Variações fenotípicas significativas ocorreram em todos os níveis hierárquicos. 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Significant phenotypic variations were noticed at all hierarchical levels. A high phenotypic differentiation among the populations was observed for quantitative traits (fruit mass and size, pulp mass and seed mass), being higher when H. stigonocarpa var. brevipetiolata was included in the analysis. RESUMO Hymenaea stigonocarpa (Mart. Ex Hayne), popularmente conhecida como jatobá-do-cerrado, é uma árvore frutífera amplamente distribuída no Cerrado, a qual possui múltiplos usos e é um recurso genético promissor. Objetivou-se caracterizar fisicamente frutos e sementes de H. stigonocarpa, bem como estimar a variabilidade fenotípica em três níveis hierárquicos: populações, matrizes dentro de populações e frutos/sementes dentro de matrizes. Frutos de seis matrizes foram amostrados de cada uma das 25 populações naturais encontradas no Cerrado. A caracterização morfométrica de 742 frutos foi realizada avaliando-se 10 caracteres quantitativos em frutos e sementes. 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In addition, comparative analyses were performed between the average values of H. stigonocarpa and the botanical variety H. stigonocarpa var. brevipetiolata. Significant phenotypic variations were noticed at all hierarchical levels. A high phenotypic differentiation among the populations was observed for quantitative traits (fruit mass and size, pulp mass and seed mass), being higher when H. stigonocarpa var. brevipetiolata was included in the analysis. RESUMO Hymenaea stigonocarpa (Mart. Ex Hayne), popularmente conhecida como jatobá-do-cerrado, é uma árvore frutífera amplamente distribuída no Cerrado, a qual possui múltiplos usos e é um recurso genético promissor. Objetivou-se caracterizar fisicamente frutos e sementes de H. stigonocarpa, bem como estimar a variabilidade fenotípica em três níveis hierárquicos: populações, matrizes dentro de populações e frutos/sementes dentro de matrizes. Frutos de seis matrizes foram amostrados de cada uma das 25 populações naturais encontradas no Cerrado. A caracterização morfométrica de 742 frutos foi realizada avaliando-se 10 caracteres quantitativos em frutos e sementes. Além disso, foram realizadas análises comparativas entre os valores médios de H. stigonocarpa e a variedade botânica H. stigonocarpa var. brevipetiolata. Variações fenotípicas significativas ocorreram em todos os níveis hierárquicos. Observou-se alta diferenciação fenotípica entre as populações para caracteres quantitativos (massa e tamanho do fruto, massa da polpa e da semente), a qual foi ainda maior quando H. stigonocarpa var. brevipetiolata foi incluída na análise</abstract><pub>Escola de Agronomia/UFG</pub><doi>10.1590/1983-40632021v5167292</doi><orcidid>https://orcid.org/0000-0001-6887-5362</orcidid><orcidid>https://orcid.org/0000-0002-1493-8601</orcidid><orcidid>https://orcid.org/0000-0002-9023-0007</orcidid><orcidid>https://orcid.org/0000-0002-7760-7674</orcidid><orcidid>https://orcid.org/0000-0002-4678-9014</orcidid><oa>free_for_read</oa></addata></record>
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1983-4063
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subjects AGRICULTURE, MULTIDISCIPLINARY
AGRONOMY
brazilian savanna
genetic pre-breeding
jatobá-do-cerrado
title Phenotypic variability of fruits and seeds in natural populations of Hymenaea stigonocarpa (Mart. Ex Hayne)
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