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

Martins, Georgia Vilela; Martins, Luíza Suely Semen; Veasey, Elizabeth Ann; Lederman, Ildo Eliezer; Silva, Edson Ferreira da

doi:10.1590/s0100-29452012000400023

Cited by 21 publications

(19 citation statements)

References 19 publications

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“…The absolute values were 0.207 (Region 1), 0.197 (Region 2), and 0.229 (Region 3). These results are close to those obtained in studies with dominant markers in natural populations; for example, 0.163-0.236 for Eugenia dysenterica (Zucchi, 2002), 0.25-0.29 to Polylepis australis (Julio et al, 2008), 0.11-0.26 and 0.25-o 0.42 for Hancornia speciosa (Costa et al, 2011;Martins et al, 2012), 0.30-0.42 for Acrocomia aculeata (Oliveira et al, 2012), and 0.24-0.27 for Metrodorea nigra (Moraes Filho et al, 2015). In addition, these results are much higher than those obtained for autogamous species such as Theobroma speciosum (Ĥ E = 0.051-0.095; Giustina et al, 2014), and Coffea arabica (Ĥ E = 0.05-0.15; Aga et al, 2005).…”

Section: Resultssupporting

confidence: 89%

Genetic diversity of the Neotropical tree Hancornia speciosa Gomes in natural populations in Northeastern Brazil

Jimenez¹,

Martins²,

Montarroyos³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Mangabeira (Hancornia speciosa Gomes) is a fruit tree of the Apocynaceae family, which is native to Brazil and is a very important food resource for human populations in its areas of occurrence. Mangabeira fruit is collected as an extractive activity, and no domesticated varieties or breeding programs exist. Due to a reduction in the area of ecosystems where it occurs, mangabeira is threatened by genetic erosion in Brazil. The objective of this study was to characterize and evaluate the genetic diversity of 38 mangabeira individuals collected from natural populations in Pernambuco State using inter-simple sequence repeat (ISSR) molecular markers. The ISSR methodology generated a total of 93 loci; 10 were monomorphic and 83 were polymorphic. The average number of loci per (2015) primer was 15.5, ranging from 9 (#UBC 866) to 21 (#UBC 834). The results showed a high level of genetic diversity (0.30), and found that only around 30% of genetic variability is distributed among populations (G ST = 0.29, Ф ST = 0.30), with the remainder (Ф CT = 70%) found within each population, as expected for forest outcrossing species. Estimates for historic gene flow (1.18) indicate that there is some isolation of these populations, and some degree of genetic differentiation.

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Section: Resultssupporting

confidence: 89%

Genetic diversity of the Neotropical tree Hancornia speciosa Gomes in natural populations in Northeastern Brazil

Jimenez¹,

Martins²,

Montarroyos³

et al. 2015

Genet. Mol. Res.

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“…The genetic diversity evaluation among germplasm accessions results in information from potential parents to be used in breeding programs, allowing the duplicate identification and the exchange of germplasm among researchers (Martins et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of Desmanthus sp accessions using ISSR markers and morphological traits

Costa

Fracetto

et al. 2017

Genet. Mol. Res.

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ABSTRACT. Desmanthus is a genus of forage legumes with high nutritional value, productive potential, and ability to obtain nitrogen in association with diazotrophic bacteria. The use of accurate techniques for genotype identification and characterization is essential for breeding programs. Morphological markers are widely used to know the genetic diversity and the molecular markers are fundamental in these studies. We investigated the genetic diversity among Desmanthus sp genotypes in Pernambuco (Brazilian Northeast State), using morphological traits and ISSR markers. Morphological and molecular characterizations were performed in 18 and 26 accessions, respectively, in plants belonging to the germplasm bank of forage legumes of Universidade Federal Rural de Pernambuco (UFRPE), Academic Unit of Serra Talhada, PE, Brazil. Eight ISSR primers were selected, and 95 loci were generated, with polymorphism of 95.79%. The allele number observed was 1.958, where the effective number was 1.359, and the Nei diversity genetic 2 J.C. Costa et al.Genetics and Molecular Research 16 (2): gmr16029667 index was 0.226. About the morphological markers, seed number was the variable that most contributed to the genetic divergence. A large amount of genetic diversity was observed among Desmanthus species, occurring spontaneously in Pernambuco, Brazil. Thus, the variability found in morphological and ISSR markers is importance for the improvement of Desmanthus spp. Our findings showed that 17L, 27L, 25F, 22F, 19S, 13Au, and 28G accessions could be used in breeding programs to explore the maximum genetic divergence.

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“…Os nove estudos desta subárea se concentraram em estimar a variabilidade genética em populações naturais de mangabeiras em diferentes regiões no país (Martins et al 2012;Moura et al 2011;Silva et al 2012;Silva et al 2013;Silva et al 2011a), conservar a variabilidade genética através da implantação de um Banco Ativo de Germoplasma de Mangaba da Embrapa Tabuleiros Costeiros (Silva Júnior et al 2007a) e avaliar a variabilidade genética depositada neste banco ; outro trabalho semelhante avaliou a variabilidade genética de mangabeiras do Banco de Germoplasma da Universidade Federal de Goiás (Ganga et al 2009); e, ainda, desenvolver uma técnica para extração de DNA genômico de qualidade a partir de tecidos foliares maduros de espécies nativas do cerrado, incluindo a mangaba, para fins de utilização em manipulações subsequente (Silva 2010).…”

Section: Resultsunclassified

Coletânea bibliográfica acadêmica sobre a mangabeira (Hancornia speciosa Gomes)

Oliveira

Cruz

Freitas

et al. 2017

G. Sci.

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resumo -A mangabeira (Hancornia speciosa Gomes) é uma árvore nativa do Brasil, cujo fruto é obtido predominantemente de forma extrativista e apreciado tanto in natura quanto na forma de polpas, geleias, doces. As raízes, cascas e látex possuem uso medicinal e sua madeira é usada como combustível. Ocorre do Nordeste até os Cerrados das regiões Centro-Oeste, Norte e Sudeste. Entende-se que estudos científicos sobre espécies nativas de base extrativista são essenciais a fim de subsidiar estratégias para a conservação da espécie. O presente trabalho objetivou analisar as publicações acadêmicas sobre a mangabeira disponíveis na plataforma de periódicos da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes), utilizando os princípios da bibliometria. As buscas aconteceram por meio das palavras chave: "mangaba", "mangabeira" e "Hancornia speciosa Gomes", o que resultou em 103 publicações sobre a espécie. Essas publicações foram classificadas de acordo com o ano, o tipo e o periódico de publicação; e, de acordo com o seu conteúdo, enquadradas nas áreas de conhecimento estabelecidas pela Capes. Após o enquadramento verificou-se que 40,8% das pesquisas estão relacionadas às Ciências Biológicas, 19,4% às Ciências de Alimentos, 13,6% às Ciências Agrárias, 10,7% às Ciências da Saúde, 7,8% às Ciências Multidisciplinares e 1,9% às Ciências Sociais Aplicadas. Constatou-se que há poucos estudos sobre aspectos socioeconômicos, ecológicos e culturais, o que indica a necessidade de mais estudos sob esses enfoques para subsidiar estratégias para a conservação da espécie. Palavras-Chave: Mangaba; periódicos; biblioMetria; sustentabilidade.ComPilation aCademiC literature on mangabeira (Hancornia speciosa gomes) abstraCt -The mangabeira (Hancornia speciosa Gomes) is a tree native to Brazil, whose fruit is obtained predominantly extractive way e appreciated both in nature e in the form of pulps, jellies, jams, etc. Their roots, bark e latex have medicinal uses e its wood is used as fuel. Is the Northeast to the Cerrado of the Center-West, North e East of the country. It is understood that scientific studies of native species of extractive base are essential in order to support strategies for the conservation of the species.

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

Cited by 21 publications

References 19 publications

Genetic diversity of the Neotropical tree Hancornia speciosa Gomes in natural populations in Northeastern Brazil

Genetic diversity of the Neotropical tree Hancornia speciosa Gomes in natural populations in Northeastern Brazil

Genetic diversity of Desmanthus sp accessions using ISSR markers and morphological traits

Coletânea bibliográfica acadêmica sobre a mangabeira (Hancornia speciosa Gomes)

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