Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM

Paiva, Claudia Lougon; Viana, Alexandre Pío; Santos, Eileen Azevedo; Silva, Raimundo Nonato Oliveira; Oliveira, Eder Jorge de

doi:10.1590/0100-2945-156/13

Cited by 23 publications

(21 citation statements)

References 22 publications

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“…2017 DOI: 10.1590/S0100-204X2017001000004 descriptors ( Figures 1 A and 2 A), and also proved the importance of using morphoagronomic descriptors to differentiate cultivars through genetic variability. The worth of using descriptors for the analysis of differentiation was also observed by Viana et al (2010), Santos et al (2011aSantos et al ( , 2014 and Paiva et al (2014) when studying the Passiflora genus. The validation rate, that is, the percentage of coincidence between obtained descriptors and the cultivar descriptors, used in the protection requests, was high in different ornamental passion fruit cultivars (100% for 'BRS Rosea Púrpura', 97% for 'BRS Pérola do Cerrado', 96% for 'BRS Céu do Cerrado', 90% for 'BRS Estrela do Cerrado', 81% for 'BRS Rubiflora', and 71% for 'BRS Roseflora').…”

Section: Resultsmentioning

confidence: 89%

Morphoagronomic and molecular characterization of ornamental passion fruit cultivars

Fonseca

Faleiro

Junqueira

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to validate the morphoagronomic descriptors used in the protection processes of plant cultivars in Brazil, by characterizing six cultivars of ornamental passion fruit. The BRS Rubiflora, BRS Rosea Púrpura, BRS Céu do Cerrado, BRS Roseflora, BRS Estrela do Cerrado, and BRS Pérola do Cerrado cultivars, 33 morphoagronomic descriptors, and two molecular markers were used. The categorical morphoagronomic descriptors were analyzed by frequency distribution and multivariate analyses. The quantitative morphoagronomic descriptors were subjected to the analysis of variance and to the comparison of the means of each cultivar. The random amplified polymorphic DNA (RAPD) and the inter-simple sequence repeats (ISSR) markers were used for molecular analysis. A high-validation rate was observed for the morphoagronomic descriptors used in the protection of plant cultivars. The analyses of variance showed significant differences between the quantitative descriptors, and the molecular markers confirmed the genetic differences among the cultivars. There was a high correlation between the calculated distances based on the categorical morphoagronomic descriptors and molecular markers. The morphoagronomic descriptors and molecular markers are useful and complementary for the characterization and differentiation of cultivars.Index terms: Passiflora, molecular markers, multivariate analysis, plant cultivar protection. Caracterização morfoagronômica e molecular de cultivares de maracujazeiro ornamentalResumo -O objetivo deste trabalho foi validar os descritores morfoagronômicos utilizados nos processos de proteção de cultivares no Brasil, por meio da caracterização de seis cultivares de maracujazeiro ornamental. As cultivares BRS Rubiflora, BRS Rosea Púrpura, BRS Céu do Cerrado, BRS Roseflora, BRS Estrela do Cerrado e BRS Pérola do Cerrado, 33 descritores morfoagronômicos e dois marcadores moleculares foram utilizados. Os descritores morfoagronômicos categóricos foram analisados por meio da distribuição de frequência e análises multivariadas. Os descritores morfoagronômicos quantitativos foram submetidos à análises de variância e à comparação entre médias das cultivares. Os marcadores "random amplified polymorphic DNA" (RAPD) e "inter-simple sequence repeats" (ISSR) foram usados para análise molecular. Observou-se alta taxa de validação dos descritores morfoagronômicos utilizados na proteção de cultivares. As análises de variância mostraram diferenças significativas entre os descritores quantitativos das cultivares, e os marcadores moleculares confirmaram as diferenças genéticas entre elas. Houve alta correlação entre as distâncias calculadas com base nos descritores morfoagronômicos categóricos e nos marcadores moleculares. Os descritores morfoagronômicos e os marcadores moleculares são úteis e complementares para a caracterização e a diferenciação das cultivares.Termos para indexação: Passiflora, marcadores moleculares, análise multivariada, proteção de cultivares.

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Section: Resultsmentioning

confidence: 89%

Morphoagronomic and molecular characterization of ornamental passion fruit cultivars

Fonseca

Faleiro

Junqueira

et al. 2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

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“…The authors pointed out that, although there are genotypes with great genetic divergence among them, the clustering of most genotypes in one group highlights the similarity between genotypes, which, according to Silva et al (2011), refers to a narrow genetic base. In the genus Passiflora, Paiva et al (2014) verified high diversity through the WardMLM method, which was able to distinguish the analyzed subgenus and a clear separation between the species that can be explored in passion fruit breeding programs.…”

Section: Resultsmentioning

confidence: 72%

Genetic divergence between passion fruit hybrids and reciprocals based on seedling emergence and vigor

Rosado

Cremasco

et al. 2017

J. Seed Sci.

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-Characteristics related to seed quality have been rarely used in studies on the genetic diversity of passion fruit. The purpose of this study was to evaluate the genetic diversity between progenies constituted by hybrids and reciprocals, based on seed emergence and vigor traits. On the 28th day, emergence percentage, emergence speed index, shoot length, root length and total length of seedling; dry weight, number of normal seedlings and 100-seed weight were evaluated in a completely randomized design experiment with 20 progenies (hybrids and reciprocals) and four replications (50 seeds). Genetic diversity was determined using the Tocher optimization clustering methods and the unweighted pair group method, based on the Mahalanobis distance, as well as evaluating the relative contribution of the traits to genetic divergence and the correlation network, according to the relations between groups of quality, length and mass variables. The most contributing variable to genetic divergence was the total length of seedlings, the reciprocal effect did not present a consistent pattern in the studied hybrid combinations.Index terms: Passiflora edulis Sims, cytoplasmic effects, biometry.Divergência genética entre híbridos e recíprocos de maracujazeiro azedo com base em características de emergência e vigor RESUMO -Características relacionadas à qualidade de sementes tem sido pouco utilizada em estudos sobre diversidade genética em maracujazeiro. O objetivo deste estudo foi avaliar a diversidade genética entre progênies constituídas por híbridos e recíprocos com base em características de emergência e vigor das sementes. Foram avaliadas: porcentagem de emergência, índice de velocidade de emergência, comprimento total da plântula, comprimento da parte aérea, comprimento da raiz primária, massa seca de parte aérea, número de plântulas normais e peso de 100 sementes. O experimento foi em delineamento inteiramente casualizado, com 20 progênies (híbridos e recíprocos) e quatro repetições de 50 sementes. A diversidade genética foi determinada através dos métodos de agrupamento de otimização de Tocher e da ligação média não ponderada entre grupos, baseada na distância de Mahalanobis, além de avaliar a contribuição relativa dos caracteres para a divergência genética e a rede de correlações de acordo com as relações entre os grupos de variável qualidade, comprimento e massa. A variável que mais contribuiu para a divergência genética foi o comprimento total da plântula, sendo que o efeito recíproco não apresentou padrão consistente nas combinações híbridas estudadas.Termos para indexação: Passiflora edulis Sims, efeito citoplasmático, biometria.1

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“…can also be evaluated by means of vegetative morphological characters, as in the study of Lawinscky et al (2014) between accessions of P. alata, in which they verified that the length of bracts, and the height of the plant were those that presented greater variation, and that of Paiva et al (2014), where the characters related to the flowers that most contributed the most to the genetic diversity of the accessions.…”

Section: The Genetic Diversity In Passifloraceae Familymentioning

confidence: 98%

Physical and chemical characterization of sweet passion fruits genotypes in Sao Mateus, Espírito Santo State, Brazil

et al. 2018

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In Brazil 95% of the passion fruit marketed comes from the species Passiflora edulis f. flavicarpa (yellow passion fruit), the remainder are Passiflora edulis f. edulis (purple passion fruit) and Passiflora alata (sweet passion fruit), considered market niches. Because of the wide genetic variability the genus Passiflora, it is of fundamental importance to identify superior genotypes to improve the quality of fruit for the fresh market. The objective is to analyze the physical and chemical characteristics of the fruits of 33 genotypes P. alata Curtis, evaluated in a randomized complete block design with two replicates of four plants, from native matrices, located at the experimental farm of the University Center of the North of Espírito Santo, Federal University of Espírito Santo, in the Northern Region of the state of Espírito Santo, São Mateus -ES. Thirty-two mature fruits were collected in each replicate, eight per plant and the following characteristics were analyzed: fruit weight (g); equatorial and polar diameter of fruit (cm); peel thickness (mm); mass of the pulp (g); pulp volume (mL); pulp yield (%); number of seeds per fruit, pH; soluble solids (SS); titratable acidity (TA) and ratio (SS/TA). There is a wide genetic variability among P. alata genotypes as to the traits assessed. Genotypes 4, 6, 8, 11, 15, 18, 21, 25 and 26 stood out among the rest, and is therefore recommended for new plantings and future breeding programs.

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Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM

Cited by 23 publications

References 22 publications

Morphoagronomic and molecular characterization of ornamental passion fruit cultivars

Morphoagronomic and molecular characterization of ornamental passion fruit cultivars

Genetic divergence between passion fruit hybrids and reciprocals based on seedling emergence and vigor

Physical and chemical characterization of sweet passion fruits genotypes in Sao Mateus, Espírito Santo State, Brazil

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