Variabilidade genética de populações de fava d'anta (Dimorphandra mollis) da região norte do Estado de Minas Gerais

Oliveira, Dario Alves de; Paula, Márcia Fabiana Barbosa de; Pimenta, Marcio Antonio Silva; Braga, Rodrigo Fagundes; Ferreira, Maria Fernanda Maia; Rodrigues, Luiz

doi:10.1590/s0100-67622008000200018

Cited by 17 publications

(26 citation statements)

References 17 publications

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“…However, studies on other species under the same conditions of this study may allow the understanding of the magnitudes of H and I presented here. Oliveira et al (2008) . These studies were also conducted in natural populations by using ISSR primers.…”

Section: Resultsmentioning

confidence: 99%

Population structure and genetic diversity in natural populations of Theobroma speciosum Willd. Ex Spreng (Malvaceae)

Giustina¹,

Luz

Vieira³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. The genus Theobroma found in the Amazon region is composed of 22 species, including Theobroma speciosum, better known as cacauí. These species are constantly threatened by forest fragmentation caused by human activities and require conservation strategies and management aimed at preserving them in their natural environments. The main objective of this study was to analyze the population structure and genetic diversity within and between natural populations of T. speciosum by using ISSR molecular markers to understand the population structure of the species. Four natural populations belonging to the Amazon rainforest (BAC, CRO, FLA, and PNA), located in the State of Mato Grosso, were selected. Amplification reactions were performed using 15 ISSR primers. A total of 101 loci 3511 Genetic diversity in Theobroma speciosum©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 13 (2): 3510-3519 (2014) were found, of which 54.46% were polymorphic at the species level. The BAC population showed higher genetic diversity (H = 0.095 and I = 0.144) and higher percentage of polymorphism (28.71%). The populations showed an F ST value of 0.604, indicating marked genetic differentiation. The highest genetic variation was found between populations. Gene flow was low between populations, indicating genetic isolation between populations.

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Section: Resultsmentioning

confidence: 99%

Population structure and genetic diversity in natural populations of Theobroma speciosum Willd. Ex Spreng (Malvaceae)

Giustina¹,

Luz

Vieira³

et al. 2014

Genet. Mol. Res.

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“…Os valores de Na obtidos para mangaba foram inferiores aos encontrados por Oliveira et al (2008), que, ao estudar a variabilidade genética de fava d'anta (Dimorphandra mollis Benth), obtiveram valores de 1,7 para Na e 1,5 para Ne. Na literatura, há conhecimento de poucos trabalhos com marcadores RAPD relacionados a esse tipo de estudo, o que dificulta a comparação dos valores observados neste trabalho, com os encontrados em outras áreas ou bancos de germoplasma no país, para mangaba.…”

Section: Resultsunclassified

“…Para He, os valores foram inferiores aos encontrados por Oliveira et al (2008), em fava d'anta e em cajazeira (Spondias mombin L.) (Silva et al, 2009). O baixo valor de He (0,17) para os genótipos sugere uma baixa diversidade no BGMangaba.…”

Section: Resultsunclassified

Diversidade genética de acessos do banco de germoplasma de mangaba em Sergipe

Costa

Silva²,

Lédo³

et al. 2011

Pesq. agropec. bras.

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Genetic diversity of accessions of the mangaba germplasm bank in Sergipe, BrazilAbstract -The objective of this work was to estimate the genetic variability of mangaba accessions of natural populations, from 11 locations, using RAPD markers. The accessions belong to Banco Ativo de Mangaba of Embrapa Tabuleiros Costeiros, in Itaporanga d'Ajuda, SE, Brazil. A total of 13 primers were used, which generated 82 fragments, of which 78 (95%) were polymorphic. Genetic analysis among regions showed low genetic diversity; however, genetic similarity ranged from 0.02 to 0.91, for the 55 accessions. Divergent groups were identified by UPGMA and ACoP clustering. The least similar accessions were derived from Ipiranguinha (Conde, PB, Brazil) and Preguiça (Indiaroba, SE, Brazil), and the most similar from Jandaíra (Costa Azul, BA, Brazil). From the total, 49 accessions were genetically distinct and six were similar. By using RAPD markers, it was possible to obtain a unique molecular profile, besides estimating the variability among the accessions evaluated. The Banco Ativo de Germoplasma de Mangaba of Embrapa Tabuleiros Costeiros shows low genetic diversity among locations.

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“…Data obtained by OLIVEIRA et al (2008), using RAPD markers in a study of 44 genotypes of D. mollis Benth. from six localities in northern Minas Gerais, demonstrated that the populations were constituted by closely-related genotypes, since they found a low degree of polymorphism.…”

Section: Resultsmentioning

confidence: 99%