Biochemical traits useful for the determination of genetic variation in a natural population of Myracrodruon urundeuva

Abdala, Ludmila; Moraes, Mário Luiz Teixeira de; Vargas-Rechia, Carem Gledes; Giorgini, Jarbas Francisco; Sá, Marco Eustáquio de; Polizeli, M. de L. T. de M.

doi:10.1590/s0100-204x2002000700003

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…In seeds of Euphorbia heterophylla, soluble sugars comprised approximately 4% of the seed dry mass, and starch was not detected in the endosperm of E. heterophylla, which supports the results of this study in which starch was barely detected. In seeds of Myracrodruon urundeuva, an arborescent species of the Anacardiaceae family, soluble sugars represented only 3.5% and starch represented 0.1% of dry seeds (Abdala et al 2002). In addition, soluble sugar and starch contents showed low levels in French beans (Cortelazzo et al 2005) and Dalbergia miscolobium (Silva et al 1998).…”

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confidence: 99%

Seed reserve composition and mobilization during germination and early seedling establishment of Cereus jamacaru D.C. ssp. jamacaru (Cactaceae)

Alencar

Innecco

Gomes-Filho

et al. 2012

An. Acad. Bras. Ciênc.

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Cereus jamacaru, a Cactaceae found throughout northeast Brazil, is widely used as cattle food and as an ornamental and medicinal plant. However, there has been little information about the physiological and biochemical aspects involved in its germination. The aim of this study was to investigate its reserve mobilization during germination and early seedling growth. For this, C. jamacaru seeds were germinated in a growth chamber and collected at 0, 2, 4, 5, 6, 8 and 12 days after imbibition for morphological and biochemical analyses. Dry seeds had wrinkled seed coats and large, curved embryos. Lipids were the most abundant reserve, comprising approximately 55% and 65% of the dry mass for cotyledons and the hypocotylradicle axis, respectively. Soluble sugars and starch were the minor reserves, corresponding to approximately 2.2% of the cotyledons' dry mass, although their levels showed significant changes during germination. Soluble proteins corresponded to 40% of the cotyledons' dry mass, which was reduced by 81% at the final period of germination compared to dry seeds. C. jamacaru seed can be classified as an oil seed due to its high lipid content. Moreover, lipids were the main reserve mobilized during germination because their levels were strongly reduced after seed germination, while proteins were the second most utilized reserve in this process.

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confidence: 99%

Seed reserve composition and mobilization during germination and early seedling establishment of Cereus jamacaru D.C. ssp. jamacaru (Cactaceae)

Alencar

Innecco

Gomes-Filho

et al. 2012

An. Acad. Bras. Ciênc.

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“…Qualitative variation in fatty acid profile of seeds has already been pointed out among cultivars of several species (Velasco et al 1998, Ishikawa et al 2001, Orhan et al 2002. These differences may be related to genetic variability, geographic localization, environmental or cultivated conditions of growth (Silva et al 2001, Abdala et al 2002. Since the seed samples used by Aguiar et al (2010) were obtained at Bragantina (state of Pará -North of Brazil), very far from Indaiatuba (state of São Paulo -Southest of Brazil), where the sample of the present study were harvested, geographic variation could account for the distinct profiles.…”

Section: Resultsmentioning

confidence: 94%

Composição de ácidos graxos das sementes de três genótipos de Malpighia glabra L

Egydio

2012

Bol. bot.

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Fatty acid composition of seeds of three Malpighia glabra L. genotypes (Malpighiaceae)). Malpighia glabra (acerola) is a plant native to Antilles and northern South America. Its significant commercial value is due to the high vitamin C content of the fruits. Brazil is the leading producer and the largest consumer market of M. glabra in the world. The present study determines total oil yield and fatty acid profile of seeds of three M. glabra genotypes. Total oil was extracted using n-hexane, and methyl ethers of fatty acids were analyzed by gas chromatography and mass spectroscopy. Total concentration of fixed oil in seeds varied between 63.33 ± 12.24 mg/g and 97.14 ± 31.47 mg/g dry matter. Palmitic (C 16:0), stearic (C 18:0), oleic (C 18:1) and linoleic (C 18:2) were identified. Linoleic acid was the main component in all M. glabra individuals analyzed, independently of epicarp color. Unsaturated fatty acids were more abundant than saturated fatty acids. The data obtained may be useful to foster the use of the species, since the oils in its seeds may be better employed in food industry and other applications. The economically viable use of agribusiness waste is an important means to reduce environmental impact and open new alternatives to obtain products with greater added value, with environmental and economic benefits.

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“…O teor proteico se sobressaiu ao de amido e carboidrato, fornecendo um indicativo de qualidade fisiológica, uma vez que, proteínas armazenadas contribuem para o sucesso do processo germinativo. Abdala et al (2002) encontraram tendência semelhante ao observado no presente estudo em sementes de aroeira (M. urundeuva), obtendo maior teor para glutelina (286,0 mg g -1 ) e prolamina (135,2 mg g -1 ). De acordo com Souza et al (1993), a glutelina é uma proteína de boa qualidade nutricional e apresenta maior teor de aminoácidos essenciais que a prolamina.…”

Section: Discussionunclassified

Variação genética para compostos bioquímicos em sementes de aroeira procedente de uma população antropizada

Pupin

Júnior

Alzate-Marin

et al. 2017

Nativa

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Sementes florestais com qualidade genética são imprescindíveis para fundação de populações, assim como, a composição química é fundamental para manter o vigor e favorecer o estabelecimento das mudas no campo. Dessa forma, o objetivo desse trabalho foi estimar a variabilidade, divergência e correlações genéticas e fenotípicas para compostos bioquímicos em sementes de árvores matrizes de aroeira (Myracrodruon urundeuva Fr. All.) para estabelecer estratégias de conservação ex situ. Os parâmetros genéticos e estatísticos foram obtidos com base no procedimento REML/BLUP. As diferenças genéticas entre as árvores matrizes foram significativas para todos os caracteres. O coeficiente de variação genética foi superior a 15% (teor de carboidrato). A herdabilidade da média de genótipos (> 0,98) e acurácia (> 99%) foram altas para o amido. As correlações genéticas e fenotípicas entre os compostos bioquímicos foram de baixa magnitude (< 0,29-amido e prolamina). Houve a formação de nove grupos heteróticos e a seleção de 50% das matrizes inferiu ganho de 15,84% para o índice de seleção de Mulamba-Mock. Portanto, a população natural de M. urundeuva apresenta ampla base genética e pode ser utilizada para estabelecer um teste de progênies como forma de conservação ex situ. Palavras-chave: composição química, Myracrodruon urundeuva, parâmetros genéticos, sementes florestais. Genetic variation for biochemical traits in aroeira seeds derived in anthropized population ABSTRACT: Genetic quality of forest seeds are essential for populations foundation, as well as, the chemical composition is essential to maintain the vigor and support the establishment of the seedlings in the plantation. The objective of this study was to estimate the variability, divergence and genetic and phenotypic correlations for biochemicals traits in seeds of mother trees of aroeira (Myracrodruon urundeuva Fr. All) to establish ex situ conservation strategies. Genetic and statistical parameters were obtained based on the REML/BLUP procedure. The genetic differences were significant for all traits. The genetic variation coefficient was greater than 15% (carbohydrate). The heritability average of genotypes (> 0.98) and accuracy (> 99%) were high in starch. Genetic and phenotypic correlations between biochemicals compounds were of low magnitude (< 0.29-starch and prolamin). There was formation of nine heterotic groups and selection of 50% of the mother trees deduced a gain of 15.84% by Mulamba-Mock selection index. Therefore, the natural population of M. urundeuva has broad base genetic and can be used to establish a progeny test as a form of genetic conservation ex situ.

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Biochemical traits useful for the determination of genetic variation in a natural population of Myracrodruon urundeuva

Cited by 6 publications

References 25 publications

Seed reserve composition and mobilization during germination and early seedling establishment of Cereus jamacaru D.C. ssp. jamacaru (Cactaceae)

Seed reserve composition and mobilization during germination and early seedling establishment of Cereus jamacaru D.C. ssp. jamacaru (Cactaceae)

Composição de ácidos graxos das sementes de três genótipos de Malpighia glabra L

Variação genética para compostos bioquímicos em sementes de aroeira procedente de uma população antropizada

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