Diversidade genética de aceroleiras (Malphigia emarginata D.C.), utilizando marcadores moleculares RAPD e características morfoagronômicas

Oliveira, Marcos Góes; Oliveira, Jurandi Gonçalves de; Filho, Aroldo Gomes; Pereira, Messias Gonzaga; Viana, Alexandre Pío; Filho, Gonçalo Apolinário de Souza; Lopes, Guilherme Eugênio Machado

doi:10.1590/s0100-29452009000100023

Cited by 7 publications

(18 citation statements)

References 10 publications

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“…A large distribution of genotypes was observed in most groups, indicating wide diversity between the evaluated genotypes. This high variability could be explained by the tendency of allogamy of species which have not yet been domesticated (Oliveira et al, 2009). This was also observed in the research of Santana et al (2011), who found high variability between 17 umbu-cajazeira (Spondias sp) accessions, which is a species under domestication.…”

Section: Resultssupporting

confidence: 61%

Estimation of genetic diversity in a natural population of cambui tree (Myrciaria tenella O. Berg) using ISSR markers

et al. 2016

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Cambui (Myrciaria tenella O. Berg) is a native species from Brazil, which belongs to the family Myrtaceae. Molecular characterization is one of the most used tools for the study of the biotechnological potential of species because the diversity level between individuals can be inferred. Analysis of genetic diversity is fundamental to the direction of the strategies necessary to form and maintain a germplasm. This study aimed to evaluate the genetic diversity in a natural population of cambui using inter-simple sequence repeat (ISSR) molecular markers. The natural population, which provided the plant material, is found at the Private Reserve of Natural Heritage of Caju, which belongs to the experimental field of Embrapa Tabuleiros Costeiros, in the municipality of Itaporanga d'Ajuda, SE, Brazil. Young leaves of each individual were collected for DNA extraction and analysis of PCR-ISSR. Thirty primers were tested and the top 10 were selected. The use of these primers resulted in 71 fragments with 98.3% polymorphism. Similarity of individuals ranged between 0.30 and 0.92. The most similar individuals were C13 and C17 and the most distant were C1 and C41. Through UPGMA, six distinct groups were identified. This information may be used for conservation of these genetic resources, germplasm exchange, creation of germplasm bank and in future studies with this species.

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Section: Resultssupporting

confidence: 61%

Estimation of genetic diversity in a natural population of cambui tree (Myrciaria tenella O. Berg) using ISSR markers

et al. 2016

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“…Accessions 3, 6, 8, and 24 stood out with regard to fruit mass and ratio and accessions 16 and 21 were superior with regard to fruit mass and vitamin C content (Table 1). These accessions have potential for use as clonal varieties and also in future crosses because they were superior in at least two of the most important agronomic characteristics or stood out in at least one of them (Oliveira et al, 2009). Moreover, the pulp yield of these nine accessions was greater than 74%, which is the determinant for industrial yield.…”

Section: Resultsmentioning

confidence: 99%

“…As a result of this expansion, the genetic variability that exists in commercial orchards of acerola, which is mostly the result of seed propagation, is associated with some disadvantages such as the segregation of plant and fruit characteristics, resulting in highly heterogeneous orchards in terms of quality and quantity. This hinders farming practices, in particular the farms' harvesting systems (Moura et al, 2007;Oliveira et al, 2009). The lack of established commercial varieties that ensure high fruit quality and yield reflects the need to genetically improve the crop.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity among accessions of acerola based on the quality of fruits

et al. 2018

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Knowledge of the quality of fruits and the genetic variability among genotypes of acerola is important to optimize the use of genetic resources in improvement programs. The objective of the present study was to assess physico-chemical characteristics to determine genetic divergence among 24 genotypes of acerola. Sixty ripe fruits were collected per plant in a commercial orchard in the municipality of Jequitibá-MG. They were assessed in two production seasons with regard to their physical, chemical, and physico-chemical characteristics. Multivariate analysis of the genetic divergence among the genotypes was performed using principal component analysis, Tocher’s clustering method, and the nearest-neighbor hierarchical method, using the standardized mean Euclidean distance as the measure of dissimilarity. Genotypes 13, 20, and 23 exhibited means that were higher than the overall mean values for the main characteristics (fruit mass, ratio, and vitamin C content). Genotypes 3, 6, 8, 21, and 24 stood out with regard to fruit mass and ratio, i.e., they were larger and sweeter. Genotype 16 stood out with regard to fruit mass and vitamin C content. Results obtained using the methods were comparable, and the methods were effective in discriminating between the genotypes. This indicated variability, with potential for use in improvement programs. Based on the mean values for the chemical and physical characteristics of fruits and considering the genetic divergence among the genotypes, it was possible to suggested nine crosses to generate a future improved population, namely between genotype 11 and genotypes 3, 6, 8, 13, 16, 20, 21, 23, and 24.

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“…Group 1 (G1) practically allocated all individuals, indicating wide diversity, and was subdivided into five groups (G1-A, G1-B, G1-C, G1-D, G1-E). Larger groups, composed by more individuals, cluster the pairs that present smaller distances, since the group size is delimited by a mean distance between pairs of individuals (Oliveira et al, 2009), and although the cambuizeiro have the autogamy mechanism, the diversity found can be explained by the tendency to allogamy (Oliveira et al, 2007).…”

Section: /8mentioning

confidence: 99%

Genetic diversity of cambui trees (Myrciaria floribunda (West ex Willd) O. Berg) differentiated by the color of the fruit

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et al. 2019

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The cambui tree (Myrciaria floribunda (West ex Willd) O. Berg), is a native fruit tree from Brazil, whose fruit present potential in natura and industrial consumption. Our objective was to evaluate the genetic diversity between individuals differentiated by fruit color -orange and purple, by using ISSR molecular markers. The plant material belongs to the Caju Private Natural Heritage Reserve, experimental field of Embrapa Coastal Tablelands, in the municipality of Itaporanga d'Ajuda, SE. Young leaves from 25 individuals (15 with orange color fruit and 10 with purple color fruits) were collected for DNA extraction and PCR-ISSR analysis with 15 primers, which produced a total of 93 bands, being 95.5% of them polymorphic. The mean similarity was 0.53, based on the Jaccard coefficient. The least similar individuals were FR5 and FL8; FR5 and FL9; FR1 and FR5. The most similar pairs of individuals were FL3 and FL4; FL4 and FL5. The UPGMA analysis clustered the individuals into two groups. Although no specific molecular marking that characterizes fruit coloration has been found, there is genetic variability among the evaluated individuals. Diversidade genética de cambuizeiros (Myrciaria floribunda (West ex Willd) O. Berg) diferenciados pela coloração dos frutos RESUMO: O cambuizeiro (Myrciaria floribunda (West ex Willd) O. Berg), é uma frutífera nativa do Brasil, cujos frutos apresentam potencial para consumo in natura e industrial. O objetivo do presente trabalho foi avaliar a diversidade genética entre indivíduos diferenciados pela coloração dos frutos -laranja e roxa, utilizando marcadores moleculares ISSR. O material vegetal pertence a Reserva Particular do Patrimônio Natural do Caju, campo experimental da Embrapa Tabuleiros Costeiros, no município de Itaporanga d'Ajuda, SE. Folhas jovens de 25 indivíduos (15 com frutos de cor laranja e 10 com frutos de cor roxa) foram coletadas para extração de DNA e análise PCR-ISSR com 15 primers, os quais produziram um total de 93 bandas, sendo 95,5% polimórficas. A similaridade média foi de 0,53, com base no coeficiente de Jaccard. Os indivíduos menos semelhantes foram FR5 e FL8; FR5 e FL9; FR1 e FR5. Os pares de indivíduos mais similares foram FL3 e FL4; FL4 e FL5. A análise UPGMA agrupou os indivíduos em dois grupos. Apesar de não ter sido encontrada uma marca molecular específica que caracterize a coloração dos frutos, há variabilidade genética entre os indivíduos avaliados. Palavras-chave: frutas nativas; ISSR; MyrtaceaeGenetic diversity of cambui trees (Myrciaria floribunda (West ex Willd) O. Berg)differentiated by the color of the fruit Rev. Bras.

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Diversidade genética de aceroleiras (Malphigia emarginata D.C.), utilizando marcadores moleculares RAPD e características morfoagronômicas

Cited by 7 publications

References 10 publications

Estimation of genetic diversity in a natural population of cambui tree (Myrciaria tenella O. Berg) using ISSR markers

Estimation of genetic diversity in a natural population of cambui tree (Myrciaria tenella O. Berg) using ISSR markers

Genetic diversity among accessions of acerola based on the quality of fruits

Genetic diversity of cambui trees (Myrciaria floribunda (West ex Willd) O. Berg) differentiated by the color of the fruit

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