Conservação de Dimorphandra mollis benth. (fabaceae) baseada na estrutura genética de populações naturais

Gonçalves, Ana Cecilia Teixeira; Vieira, Fábio de Almeida; Reis, Cristiane Aparecida Fioravante; Carvalho, Dulcinéia de

doi:10.1590/s0100-67622010000100011

Cited by 8 publications

(6 citation statements)

References 11 publications

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“…Lower values were found by Botrel et al (2006) studying Jacareúba (Calophyllum brasiliense) (37.5 and 50%) and higher or similar values were found in populations of other native species, with reproduction typically alogamous, such as in Siriguela (Spondias lutea L.) (GOIS et al, 2009) presenting 90% polymorphic loci, Cajá tree (Spondias monbim) and Faveiro (Dimorphandra mollis) (GONÇALVES et al, 2010), for instance. The average number of allele per locus (A) among populations ranged ^^^^D IVERSITY AND GENETIC STRUCTURE IN NATURAL POPULATIONS OF Hancornia... from 1.82 to 2.09 (Table 3).…”

Section: Resultsmentioning

confidence: 54%

“…High heterozygosity has been observed in many natural populations of tropical fruits (MELO JÚNIOR et al, 2004) H e ranged from 0.450 and 0.530, (GOIS et al, 2009) H e = 0.514; ) H e ranged from 0.530 to 0.574 and (GONÇALVES et al, 2010), H e = 0.463. According to Sebbenn et al (2000), high levels of heterozygosity are extremely important because it makes possible the occurrence of a large number of new genotypic combinations, increasing the evolutionary potential of species, and the ability to adapt to any environmental changes.…”

Section: Resultsmentioning

confidence: 96%

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Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil

Martins¹,

Martins

Veasey

et al. 2012

Rev. Bras. Frutic.

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-Hancornia speciosa Gomes is a fruit tree native from Brazil that belongs to Apocinaceae family, and is popularly known as Mangabeira. Its fruits are widely consumed raw or processed as fruit jam, juices and ice creams, which have made it a target of intense exploitation. The extractive activities and intense human activity on the environment of natural occurrence of H. speciosa has caused genetic erosion in the species and little is known about the ecology or genetic structure of natural populations. The objective of this research was the evaluation of the genetic diversity and genetic structure of H. speciosa var. speciosa. The genetic variability was assessed using 11 allozyme loci with a sample of 164 individuals distributed in six natural populations located in the States of Pernambuco and Alagoas, Northeastern Brazil. The results showed a high level of genetic diversity within the species (H e = 0.36) seeing that the most of the genetic variability of H. speciosa var. speciosa is within its natural populations with low difference among populations ( q p = 0.081). The inbreeding values within ( f = -0.555) and among populations ( F =-0.428) were low showing lacking of endogamy and a surplus of heterozygotes. The estimated gene flow ( N m ) was high, ranging from 2.20 to 13.18, indicating to be enough to prevent the effects of genetic drift and genetic differentiation among populations. The multivariate analyses indicated that there is a relationship between genetic and geographical distances, which was confirmed by a spatial pattern analysis using Mantel test (r = 0.3598; p = 0.0920) with 1000 random permutations. The high genetic diversity index in these populations indicates potential for in situ genetic conservation. Index terms: Conservation, gene flow, genetic resources, genetic variability, isozyme, mangabeira. DIVERSIDADE E ESTRUTURA GENÉTICA EM POPULAÇÕES NATURAIS DE Hancornia speciosa var. speciosa GOMES NO NORDESTE DO BRASILRESUMO -Hancornia speciosa Gomes é uma árvore frutífera nativa do Brasil, pertencente à família Apocinaceae, e é conhecida popularmente como Mangabeira. Seus frutos são amplamente consumidos in natura ou processados como sucos, sorvetes e geleias. O extrativismo e a intensa atividade antrópica no ambiente de ocorrência natural da Mangabeira, no Nordeste do Brasil, têm causado erosão genética na espécie e pouco se conhece sobre a estrutura genética das populações desta espécie. O objetivo deste trabalho foi avaliar a diversidade e a estrutura genética de populações naturais de H. speciosa var. speciosa. Utilizando 11 locos isoenzimáticos, avaliaram-se 164 indivíduos, amostrados em seis populações naturais localizadas nos Estados de Pernambuco e Alagoas, Nordeste do Brasil. Os resultados mostraram um alto nível de diversidade genética dentro da espécie (H e = 0,36), sendo verificado que a maior parte da variabilidade genética se encontra dentro das populações, com pequena diferenciação entre as mesmas (q p = 0,081). A endogamia dentro das populações ( f = -0,555) e entre...

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Section: Resultsmentioning

confidence: 54%

Section: Resultsmentioning

confidence: 96%

Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil

Martins¹,

Martins

Veasey

et al. 2012

Rev. Bras. Frutic.

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“…Adicionalmente, há de se considerar que espécies alógamas podem apresentar altos índices de heterozigose, isto tem sido observado em muitas populações naturais de frutíferas tropicais (MELO JÚNIOR et al, 2004;GOIS et al, 2009;SILVA et al, 2009;GONÇALVES et al, 2010). De acordo com Sebbenn et al (2000), os elevados níveis de heterozigosidade são extremamente importantes porque torna possível a ocorrência de um grande número de novas combinações genotípicas, aumentando o potencial evolutivo da espécie, bem como a capacidade de se adaptar às alterações ambientais.…”

Section: Discussionunclassified

Emergência de plântulas de uma matriz de Campomanesia adamantium (Cambess.) O. Berg, sob diferentes condições

2014

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Os indivíduos de Campomanesia adamantium são arbustos com bagas arredondadas, amareladas quando maduras, com polpa suculenta, adocicada e aromática. Muito apreciadas pela população do centro-oeste brasileiro, além do potencial econômico, as gabirobeiras possuem importante função ecológica e medicinal. Os poucos registros sobre os métodos de propagação de C. adamantium demonstram respostas variadas do processo germinativo, por vezes em condições semelhantes. Objetivou-se com este estudo avaliar a inluência de diferentes substratos e métodos de extração da polpa das sementes, sobre a emergência de plântulas de C. adamantium, coletadas de um único indivíduo. O experimento fundamentou-se em quatro métodos de extração da polpa a) controle: sementes semeadas com polpa; b) sementes cuja polpa foi retirada mecanicamente pelo atrito com serragem ina; c) sementes cuja polpa foi retirada com lavagem em água corrente; d) sementes com polpa embebidas por 24 h; e, quatro substratos para o plantio: 1) Vermiculita; 2) Plantmax ® ; 3) Tri-Mix ® ; 4) areia média lavada. O substrato areia apresentou o melhor potencial de emergência. Não houve diferença signiicativa entre os métodos de extração de polpa. A presença da polpa não representou perdas no potencial de emergência, tempo médio ou velocidade média de emergência.

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“…In the Chromatogram analysis of aqueous and ethanolic extracts of leaves ising in the production of drugs to combat aging and degenerative diseases [23] and its main vasodilator function and antioxidant activity [24].…”

Section: Chemical Composition Of the Extracts And Essential Oilmentioning

confidence: 99%

Chemical Composition, Antioxidant and Antimicrobial Activity of the Oil and Plant Extract <i>Myrocarpus frondosus</i> Allemão

Santi¹,

Gatto²,

Machado³

et al. 2017

AJPS

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The objective of this study was to evaluate the chemical profile of extracts (aqueous and ethanol) and the essential oil of Myrocarpus frondosus Allemão, the sensitivity of strains of Escherichia coli, Staphylococcus aureus, Salmonella typhimurium and Listéria monocytogenes, front the extracts and essential oil, by means of the microdilution method in broth, the antioxidant activity by the ABTS method, and the content of phenolic compounds present in the extracts and oil. For the preparation of extracts from plant leaves used with ethanol and water, then separated, the chemical identification of compounds was performed by high-performance liquid chromatography (CLAE-DAD) and gas chromatography coupled to mass spectrum (CG/MS). With the chemical analysis of the extracts obtained the presence of the major compound rutin, and oil major compound was found germacrene B. In the microdilution method in broth, oil and extracts showed inhibition against all the bacteria tested in the concentrations 1 mg/ml to 0.25 mg/ml, except for Staphylococcus aureus at a concentration of 0.25 mg/ml of the essential oil and trans-caryophyllene. The results of Minimum Bactericidal Concentration showed that the essential oil had bactericidal activity at a concentration of 1mg/ml for all bacteria tested and trans-caryophyllene at the same concentration only for Listeria monocytogenes. In relation to the essential oil, antioxidant activity showed higher radical reduction capacity of 40.92% and the content of phenolic compounds ethanol extract showed more 12.72%. The in vitro results support the conclusion that the essential oil is very promising both in antimicrobial action as antioxidant activity and the leaf extracts on antioxidant activity.

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Conservação de Dimorphandra mollis benth. (fabaceae) baseada na estrutura genética de populações naturais

Cited by 8 publications

References 11 publications

Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil

Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil

Emergência de plântulas de uma matriz de Campomanesia adamantium (Cambess.) O. Berg, sob diferentes condições

Chemical Composition, Antioxidant and Antimicrobial Activity of the Oil and Plant Extract <i>Myrocarpus frondosus</i> Allemão

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Conservação de Dimorphandra mollis benth. (fabaceae) baseada na estrutura genética de populações naturais

Cited by 8 publications

References 11 publications

Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil

Diversity and genetic structure in natural populations of Hancornia speciosa var. speciosa Gomes in northeastern Brazil

Emergência de plântulas de uma matriz de Campomanesia adamantium (Cambess.) O. Berg, sob diferentes condições

Chemical Composition, Antioxidant and Antimicrobial Activity of the Oil and Plant Extract &lt;i&gt;Myrocarpus frondosus&lt;/i&gt; Allem&#227;o

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Chemical Composition, Antioxidant and Antimicrobial Activity of the Oil and Plant Extract <i>Myrocarpus frondosus</i> Allemão