Caracterização e divergência genética de acessos de Passiflora edulis e P. cincinnata com base em características físicas e químicas de frutos

Sousa, Larissa Barbosa de; Silva, Erismar Mesquita; Gomes, Regina Lúcia Ferreira; Lopes, Ângela Célis de Almeida; Silva, Izabel Cristina Veras

doi:10.1590/s0100-29452012000300024

Cited by 11 publications

(12 citation statements)

References 7 publications

(4 reference statements)

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“…Therefore, according to this criterion, it can be stated that all selected descriptors are important in the characterization of the evaluated Passiflora genotypes, as they provide important contributions (greater than 1.0% of the total variation) in the discrimination of divergence. Different results were reported by Sousa et al (2012), who characterized and quantified genetic diversity in accessions of P. edulis based on physical and chemical fruit traits and obtained higher values than those reported here for the relative contributions of fruit width (15.94%) and peel thickness (5.38%). On the other hand, soluble solids content (2.93%), number of seeds (2.52%), and fruit weight (3.04%) had lower contributions to the genetic divergence of passion fruit genotypes as compared with this study.…”

Section: Resultscontrasting

confidence: 99%

“…These correlations with fruit weight were expected, since they indicate that genotypes with heavier fruits typically produce wider fruits, with consequent higher pulp weight and number of seeds. According to Sousa et al (2012), in the direct selection of passion-fruit genotypes, these are among the most relevant traits.…”

Section: Resultsmentioning

confidence: 99%

“…Principal component analysis, the method of Singh, and correlation estimates stand out among the methodologies available for the determination of the importance of descriptors in the characterization of a population. Sousa et al (2012) developed a study to characterize and quantify the genetic diversity of accessions of P. edulis and P. cincinnata. They obtained estimates of genetic correlations between fruit traits and also used the Singh method to estimate the relative contribution of these traits to the expression of genetic diversity in the accessions.…”

Section: Introductionmentioning

confidence: 99%

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Research Article Characterization of a segregating population of passion fruit with resistance to Cowpea aphid-borne mosaic virus through morpho-agronomic descriptors

Santos¹,

Viana²,

Preisigke³

et al. 2019

Genet. Mol. Res.

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In passion-fruit breeding programs, characterizing genotypes developed through morpho-agronomic descriptors helps quantify genetic diversity and identify individuals with desirable qualities. We examined the discriminatory ability of passion-fruit descriptors and determined their relative importance in the characterization of 91 genotypes from a breeding program for resistance to Cowpea aphid-borne mosaic virus. Twenty-four quantitative and 14 multi-category qualitative descriptors related to plant, leaf, flower, and fruit characteristics were used. The quantitative descriptors were subjected to correlation and principalcomponent analyses and selected based on direct selection and the Singh method. The traits were used to obtain a distance matrix, based on Gower's algorithm, and a comparative clustering between the dendrograms for the morpho-agronomic variables was obtained using the unweighted pair group method with arithmetic mean procedure. Based on the principal components method, the traits that most contributed to genetic variability were number of seeds (23.241%), petiole length (19.438%), and petal width (10.440%). In its turn by the Singh method, the traits androgynophore length (6.68%), ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 18 (2): gmr18255 V.O. dos Santos et al. 2followed by flower length (5.47%), area under the disease progress curve (5.27%), and peduncle length (5.17%) were those which most contributed to the differentiation of genotypes. Although seven descriptors (leaf length, bract width, corona long filament length, sepal length, fruit width, fruit mass, and mass of fruit pulp) showed little contribution to the characterization of genotypes, their discard is not suggested, as they significantly contribute to the discrimination of genetic divergence in the population. Comparative analysis between the dendrogram containing all descriptors and the dendrogram containing only flower, leaf, or fruit descriptors evidenced the need for using a large number of descriptors in the characterization of genetic diversity in Passiflora. The use of all 38 descriptors increased the efficiency in the discrimination of groups.

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Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research Article Characterization of a segregating population of passion fruit with resistance to Cowpea aphid-borne mosaic virus through morpho-agronomic descriptors

Santos¹,

Viana²,

Preisigke³

et al. 2019

Genet. Mol. Res.

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“…Sousa et al (2012) evaluated the genetic divergence of P. edulis and P. cincinnata accesses based on physical and chemical characteristics of fruits and also observed consistency in the cluster analysis of accesses by the Tocher method and the UPGMA hierarchical method.…”

Section: Productivity Fruit Physicochemical Quality and Distinctivenmentioning

confidence: 97%

Productivity, Fruit Physicochemical Quality and Distinctiveness of Passion Fruit Populations

et al. 2016

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-The productivity and physicochemical quality evaluation is important, as it identifies superior populations. however, launching products requires following the descriptors according to DhE test instructions. Thus, this study aimed to evaluate three passion fruit populations with high productivity and physicochemical quality characteristics for commercial launch. The experiment was conducted at the State University of Mato Grosso experimental area, located in the municipality of Tangará da Serra, MT. The experimental design was complete randomized block design with four replicates and ten plants per plot. The physicochemical characteristics were submitted to analysis of variance and compared by the Tukey test. For the distinctiveness test, 25 descriptors were evaluated, where quantitative data have been converted into multicategoric data to obtain the dissimilarity matrix. From the dissimilarity matrix, groups were formed using the Tocher and UPGMA methods, Livestock and Supply Department. The highest productivity and number of fruits were verified for BRS Rubi Cerrado cultivar and UNEMAT S10 population. Populations and cultivars presented physicochemical characteristics that meet the required quality for both fresh consumption and industry use. Based on the distinction test among genotype, it was observed that the descriptors were effective for population differentiation. UNEMAT S10 population has characteristics that distinguish it from other cultivars and populations evaluated, and presents high agronomic performance; therefore, it can be launched as a commercial cultivar. Index terms: Commercial launch, Descriptors, Passiflora edulis Sims. PRODUTIVIDADE, QUALIDADE FÍSICO-QUÍMICA DE FRUTOS E DISTINGUIBILIDADE DE POPULAÇÕES DE MARACUJAZEIRO-AZEDORESUMO -A avaliação da produtividade e da qualidade físico-química apresenta importância, pois permite identificar populações superiores. Porém, para lançar material, é necessário seguir os descritores conforme as instruções para a execução dos ensaios de DHE. Desta maneira, objetivou-se avaliar três populações de maracujazeiro-azedo que apresentem características de alta produtividade e qualidade físico-química, para lançamento comercial. O experimento foi conduzido na área experimental da Universidade do Estado de Mato Grosso, situada no município de Tangará da Serra-MT. O delineamento experimental foi o de blocos completos casualizados, com quatro repetições e dez plantas por parcela. As características físico-químicas foram submetidas à análise de variância e comparadas pelo teste de Tukey. Para avaliar a distinguibilidade, foram utilizados 25 descritores, onde os dados quantitativos foram convertidos em multicategóricos, visando a obter matriz de dissimilaridade. A partir da matriz de dissimilaridade, formaram-se grupos pelo método de Tocher e UPGMA. A maior produtividade e o maior número de frutos foram verificados na cultivar BRS Rubi do Cerrado e na população UNEMAT S10. As populações e as cultivares apresentaram características físico-químicas que ate...

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“…Assim, esse material necessita ser bem conhecido e monitorado, já que a falta ou a inadequação de informações dificulta a utilização satisfatória do material conservado pelos melhoristas (NEITZKE et al, 2010). O estudo de divergência genética realizado por meio da dissimilaridade é uma importante ferramenta para o conhecimento da variabilidade entre indivíduos presentes nestes bancos (VASCONCELOS; BARBIERI, 2014), podendo ser calculada eficientemente por métodos de agrupamentos que separam de forma efetiva os acessos em grupos e permitem a verificação da máxima homogeneidade entre os indivíduos e a máxima heterogeneidade entre os grupos (SOUSA et al, 2012).…”

Section: Introductionunclassified

Divergência genética entre acessos de pimentas com base em descritores morfológicos quantitativos

Silva

Melo

Silva

et al. 2017

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In this paper we analyzed the genetic diversity of ten accessions of Capsicum sp from the Active Germplasm Bank of Federal University of Piauí based on quantitative morphological descriptors relevant to productivity, as well as for ornamental environments peppers. This analysis was performed using the Tocher clustering methods, hierarchical (UPMGA), with the use of Malahobis away as dissimilarity measure. From the results showed a significant divergence among accessions, and the BAGC 26 access, the species C. baccatum, the most dissimilar in relation to BAGC BAGC 40 and 59, the species C. annuum. The greatest contribution descriptors for genetic divergence of the plants analyzed peppers were wide of fruit, fruit length and weight of the fruit. Despite the germplasm bank of Federal University of Piauí (UFPI) be recent and still have a small number of hits, the data here show significant genetic variability among the materials analyzed, a condition that, although preliminary, favors the implementation of peppers breeding program in the state Piaui.

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Caracterização e divergência genética de acessos de Passiflora edulis e P. cincinnata com base em características físicas e químicas de frutos

Cited by 11 publications

References 7 publications

Research Article Characterization of a segregating population of passion fruit with resistance to <i>Cowpea</i> <i>aphid-borne</i> <i>mosaic</i> <i>virus</i> through morpho-agronomic descriptors

Research Article Characterization of a segregating population of passion fruit with resistance to <i>Cowpea</i> <i>aphid-borne</i> <i>mosaic</i> <i>virus</i> through morpho-agronomic descriptors

Productivity, Fruit Physicochemical Quality and Distinctiveness of Passion Fruit Populations

Divergência genética entre acessos de pimentas com base em descritores morfológicos quantitativos

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