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

Jimenez, Horace José; Martins, Luíza Suely Semen; Montarroyos, Angélica Virgínia Valois; Silva, J.F.; Alzate-Marin, Ana Lília; Filho, R.M. Moraes

doi:10.4238/2015.december.21.48

Cited by 24 publications

(30 citation statements)

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“…Fifty-five fragments were amplified, and 67% were polymorphic locus. The value found was lower than the the native mangaba fruits using ISSR markers in the state of Pernambuco (89%) (Jimenez et al, 2015), and higher (48%) than those found in the state of Rio Grande do Norte (Costa et al, 2015). Both values reported in mangaba are considered high when compared with other species, such as cupuaçu (34.9%) (Silva et al, 2016).…”

Section: Resultsmentioning

confidence: 75%

“…Thus, measures for the maintenance of the remaining natural populations should be taken to promote the genetic variability of mangabas of the state of Sergipe, and the increase of this variability. Therefore, it is necessary the creation of ecological corridors that connect these areas, in order to promote gene flow in these regions (Jimenez et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

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Characterization of trees, fruits and genetic diversity in natural populations of mangaba

et al. 2017

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The state of Sergipe is the largest mangaba producer, which is a fruit native to Brazil, and has cultural, social and economic importance in its area of occurrence. It is an endangered species due to human actions, and despite its economic potential, there are still no commercial plantations. The study was carried out in order to characterize trees, fruits and the genetic diversity of natural populations of mangaba in Sergipe, Brazil. Fruits from Abaís Beach/Estância (AB) presented, on average, twice the vitamin C content (414.81 mg of vit. C/100g), when compared with the others. The use of ISSR primers was efficient in estimating the genetic similarity of populations. The primers clustered the populations of mangaba according to their origin, which indicates the genetic diversity of mangaba and their isolation. The results can be used to guide the selection of individuals in situ and ex situ conservation actions of these genetic resources. Index terms:Hancornia speciosa Gomes; postharvest; molecular markers; variability. RESUMOO Estado de Sergipe é o maior produtor de mangaba, fruta nativa do Brasil e de importância cultural, social e econômica nas áreas de ocorrência. Encontra-se em risco de extinção devido a ações antrópicas, e apesar de seu potencial econômico, ainda não existem plantios comerciais da espécie. O trabalho foi desenvolvido com o objetivo de caracterizar árvores, frutos e a diversidade genética de populações naturais de mangabeira em Sergipe, Brasil. Frutos oriundos de Abaís/Estância (AB) apresentam em média o dobro do conteúdo de vitamina C (414.81 mg de vit. C/100g) dos demais. O uso de primers ISSR foi eficiente para estimar a similaridade genética das populações, sendo agrupados de acordo com sua origem, o que indica a diversidade genética destas mangabeiras, e seu isolamento. Os resultados poderão ser usados para direcionar a seleção de indivíduos em ações de conservação desses recursos genéticos, in situ e ex situ.

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Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Characterization of trees, fruits and genetic diversity in natural populations of mangaba

et al. 2017

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“…Among all amplified bands, 33 (57.89%) were polymorphic, indicating that these markers may be used to distinguish mangabeira populations and trees. Studies with this species using the ISSR technique have detected 47.62% (COSTA et al, 2015) to 89.27% (JIMENEZ et al, 2015) of polymorphism. Based on the grouping by UPGMA, there was differentiation of mother trees from a dissimilarity of 0.02 (Figure 2), indicating a low genetic divergence among some mangabeira mother trees.…”

Section: Resultsmentioning

confidence: 99%

“…They are more advantageous than morphological markers because molecular markers are not affected by the environment and they present a high number of polymorphisms, allowing studies at any developmental stage of the plant (FALEIRO, 2007). Inter-simple sequence repeat (ISSR) is a useful tool to study genetic diversity and structure (JIMENEZ et al, 2015). Therefore, the aim of this study was to use ISSR markers to evaluate the diversity and characterize the genetic structure of mangabeira from the Chapada dos Guimarães/MT.…”

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confidence: 99%

Diversity and genetic structure of mangabeira (Hancornia speciosa Gomes), a fruit species from Cerrado

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Silva

et al. 2017

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Hancornia speciosa Gomes, popularly known as mangabeira, is a fruit tree belonging to the Apocynaceae family, native to the Brazilian Cerrado. The fruit is widely used by the local population as an alternative source of income. Limited information is available about this species, which increases the difficulty of conserving its genetic resources and exploiting mangabeira as an economic resource. The objective of this research was to evaluate the genetic diversity and genetic structure of H. speciosa from Chapada dos Guimarães. Twenty-four trees and ten inter simple sequence repeats (ISSR) primers were evaluated. Of the 57 bands obtained, 33 (57.89%) presented polymorphism. The analysis using Structure defined two different clusters (K = 2), which were consistent with the unweighted pair group method with arithmetic mean (UPGMA) clustering analysis. The number of observed alleles (Na = 1.58), number of effective alleles (Ne = 1.29), Nei's genetic distance (He = 0.18) and Shannon index (I = 0.27) were considered low among the population. The analysis of molecular variance (AMOVA) revealed that the variability within the cluster (83.39%) was higher than among clusters (16.61%). ISSR primers proved effective for detection of genetic polymorphism in H. speciosa, and could be utilized for strategies that aim at conservation, plant breeding programs, and commercial use. Key words: Mangaba. Molecular analysis. ISSR. ResumoHancornia speciosa Gomes, conhecida popularmente como mangabeira, é uma fruteira pertencente à família Apocynaceae que ocorre espontaneamente no Cerrado brasileiro. O fruto da mangabeira é bastante utilizado pela população local como fonte alternativa de renda e sua exploração é feita de forma extrativista. As informações sobre esta espécie são escassas, o que dificulta a conservação dos recursos genéticos e sua exploração econômica. Neste trabalho foi estudada a diversidade e estrutura genética de uma população de mangabeira, tendo sido avaliada um total de 24 árvores matrizes localizadas em Chapada dos Guimarães-MT por meio de 10 primers ISSR (inter repetições de sequências simples) que revelaram 57 bandas. Destas, 33 (57,89%) de agrupamento UPGMA. O número de alelos observados (Na = 1,58), número de alelos efetivos (Ne = 1,29), índice de diversidade de Nei (He = 0,18) e o índice de Shannon (I = 0,27) foram relativamente baixos dentro da população. A AMOVA revelou que a variabilidade dentro dos grupos (83,39%) foi mais alta do que entre os grupos (16,61%). A utilização de iniciadores ISSR mostrou-se eficaz para detecção de polimorfismo genético em mangabeira, servindo de aporte para estratégias que visem à conservação, melhoramento genético e exploração econômica da espécie. Palavras-chave: Análise molecular. Mangaba. ISSR.

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“…Reyes-Alemán et al (2016) used the ISSR marker to study the genetic relationships within the Persea genus. Jimenez et al (2015) performed genetic diversity analysis of Brazilian Hancornia speciosa Gomes using ISSR markers. Moraes Filho et al (2015) used the ISSR marker to investigate the genetic diversity of Metrodorea nigra St. Hill from the Brazilian Atlantic Forest.…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization and population structure study of cambuci: strategy for conservation and genetic improvement

et al. 2016

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ABSTRACT. Cambuci (Campomanesia phaea) belongs to the Myrtaceae family and is native to the Atlantic Forest of Brazil. It has ecological and social appeal but is exposed to problems associated with environmental degradation and expansion of agricultural activities in the region. Comprehensive studies on this species are rare, making its conservation and genetic improvement difficult. Thus, it is important to develop research activities to understand the current situation of the species as well as to make recommendations for its conservation and use. This study was performed to characterize the cambuci accessions found in the germplasm bank of Coordenadoria de Assistência Técnica Integral using inter-simple sequence repeat markers, with the goal of understanding the plant's population structure. The results showed the existence of some level of genetic diversity among the cambuci accessions that could be exploited for the genetic improvement of the species. Principal coordinate analysis and discriminant analysis clustered the 80 accessions into three groups, whereas Bayesian modelbased clustering analysis clustered them into two groups. The formation of two cluster groups and the high membership coefficients within the groups pointed out the importance of further collection to cover more areas and more genetic variability within the species. The study also showed the lack of conservation activities; therefore, more attention from the appropriate organizations is needed to plan and implement natural and ex situ conservation activities.

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

Cited by 24 publications

References 25 publications

Characterization of trees, fruits and genetic diversity in natural populations of mangaba

Characterization of trees, fruits and genetic diversity in natural populations of mangaba

Diversity and genetic structure of mangabeira (Hancornia speciosa Gomes), a fruit species from Cerrado

Molecular characterization and population structure study of cambuci: strategy for conservation and genetic improvement

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