Utilisation de caractères morphologiques, physiologiques et de marqueurs moléculaires pour l'évaluation de la diversité génétique de trois cultivars de clémentinier

Chahidi, Bouchra; El-Otmani, M.; Jacquemond, Camille; Tijane, M.; Mousadik, Abdelhamid El; Srairi, Ikbal; Luro, François

doi:10.1016/j.crvi.2007.10.009

Cited by 7 publications

(6 citation statements)

References 32 publications

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“…No entanto, é importante que sejam selecionados os caracteres adequados, como relatam Chahidi et al (2008), que demonstraram ser ineficiente o uso de caracteres relacionados com a planta e a folha, no estudo de divergên-cia genética da tangerina (Citrus reticulata), sendo os caracteres de fruto mais informativos e úteis nesse caso. Nas várias regiões de cultivo de manga, tentativas de cruzamentos estão sempre em andamento para a criação de melhores cultivares.…”

Section: Introductionunclassified

Diversidade genética entre cultivares de mangueiras, baseada em caracteres de qualidade dos frutos

Silva¹,

Siqueira

Rocha

et al. 2012

Rev. Ceres

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Genetic diversity among cultivars of mango based on fruit quality traitsThe mango crop is one of the most significant agribusiness in Brazil. Although there are many cultivars, cultivation has been done primarily with 'Tommy Atkins' and there are few studies on characterization and analysis of genetic diversity in different areas of production. Therefore, the objective of this work was to study the genetic diversity of fifteen mango cultivars, eight from Brazil and seven from Florida (USA), produced in the Zona da Mata Mineira region. Fifteen ripe fruits from each cultivar were collected and analyzed chemically and physically. The cultivars that showed more similarities were 'Kent' and 'Palmer'. 'Extrema' was not grouped with the others by the UPGMA clustering method. This analysis was also used for the separation of Brazilian and USA cultivars. The principal component analysis of the chemical characteristics did not group the cultivars 'Extrema' and 'Tommy Atkins' with the others. The physical characteristics showed the same separation obtained by the UPGMA method, except for the cultivar 'Extrema' that was grouped with other cultivars. There was correlation between the color of the pulp, hue angle, and total soluble sugar content and between the color of the peel, b* index and percentage of peel and pulp. A mangueira é uma das fruteiras mais importantes do Brasil. Apesar de existirem muitos cultivares, o cultivo tem sido realizado basicamente com o cultivar 'Tommy Atkins' e existem poucos trabalhos sobre caracterização e análise da diversidade genética dos genótipos disponíveis. Por isso, o objetivo deste trabalho foi estudar a diversidade genética de 15 cultivares de mangueiras, produzidos na Zona da Mata Mineira, sendo oito brasileiros e sete oriundos da Flórida (EUA). Para isto, frutos maduros dos 15 cultivares foram colhidos e analisados química e fisicamente. Os cultivares que se apresentaram mais similares foram 'Kent' e 'Palmer'. O cultivar 'Extrema' não se agrupou com os outros pelo método de agrupamento UPGMA, e, por esta análise houve a separação dos cultivares brasileiros e norte-americanos. Quanto às características químicas, a técnica de componentes principais não agrupou os cultivares 'Extrema' e 'Tommy Atkins' com os demais; já quanto às características físicas, observou-se a mesma separação obtida pelo agrupamento UPGMA, com exceção do cultivar 'Extrema' que, neste caso, agrupou-se com os demais cultivares. Observou-se correlação entre a coloração da polpa, o ângulo hue e o teor de açúcares solúveis totais e entre a coloração da casca, o índice b* e a percentagem de casca e polpa. Palavras-chave:Mangifera indica L., correlação, agrupamento.

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Section: Introductionunclassified

Diversidade genética entre cultivares de mangueiras, baseada em caracteres de qualidade dos frutos

Silva¹,

Siqueira

Rocha

et al. 2012

Rev. Ceres

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“…De forma geral, os caracteres morfoagronômicos são eficientes para estudo de divergência genética. Porém, é importante que sejam selecionados os caracteres adequados, como relatam Chahidi et al (2008) que demonstraram ser ineficiente o uso de caracteres relacionados com a planta e a folha no estudo de divergência genética da tangerina (Citrus reticulata), sendo os caracteres de fruto mais informativos e úteis nesse caso.…”

Section: Introductionunclassified

Divergência genética em cultivares de morangueiro, baseada em caracteres morfoagronômicos

Morales¹,

Resende²,

Faria³

et al. 2011

Rev. Ceres

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Genetic diversity in strawberry cultivars based on morphological characteristicsMorphological characteristics are traditionally used to characterize cultivars, contributing to the development of strategies for genetic improvement. In this study we evaluated the genetic diversity using morphological characteristics of 11 strawberry cultivars (Aromas, Camarosa, Camino Real, Campinas, Diamante, Dover, Oso Grande, Sweet Charlie, Toyonoka, Tudla and Ventana) in the south-central region of Paraná. A total of 29 strawberry morphological characteristics related to plant, leaf, flower, fruit and achenes were analyzed. Genetic similarities were calculated by multivariate analysis and cultivar grouping was based on a genetic similarity matrix using UPGMA. Among the 29 morphological characters evaluated, eight showed non-significant differences (p <0.05). The average similarity was 38%, ranging from 19% (Aromas and Camino Real) to 62% (Camino Real and Camarosa, Aromas and Sweet Charlie).Recebido para publicação em maio de 2010 e aprovado em abril de 2011

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“…Titratable acidity refers to a measure of all the acids in a sample, and it is a significant indicator for predicting the harvest time and a sign of the fruit's ripeness and sugar content. Generally, organic acid content decreases during maturity, and a lack of acidity makes food tasteless, whereas excessive acidity results in an unpleasant taste [36,37]. Organic acids are intermediates in metabolic processes and influence the growth of microorganisms, thus affecting the preservation quality of products.…”

Section: Resultsmentioning

confidence: 99%

The Antioxidant and Antimicrobial Activities of Two Sun-Dried Fig Varieties (Ficus carica L.) Produced in Eastern Morocco and the Investigation of Pomological, Colorimetric, and Phytochemical Characteristics for Improved Valorization

Tikent,

Laaraj,

Marhri

et al. 2023

IJPB

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The eastern region of Morocco is renowned for the production of two varieties of figs, Ghoudane (GD) and Chetoui (CH), which are characterized by their high productivity and quality. To ensure a profitable selling price, producers often dry these figs, a process that not only increases their storage capability but also enhances their nutritional and health benefits. The aim of this study was to investigate the composition and potential health benefits of dried GD and CH figs. The findings of this study reveal that both varieties of dried figs have a rich composition of sugars, lipids, proteins, vegetable fibers, vitamins, minerals, polyphenols, and other nutrients. Moreover, both GD and CH figs that have been sun-dried meet the United Nations Economic Commission for Europe’s standard in terms of dry matter and diameter. However, their marketability and commercial quality as dried figs are only classified as Category I or lower-caliber figs. In terms of color, CH figs are lighter and brighter than their GD counterparts, making them more appealing to consumers. Furthermore, this study investigated the extraction of polyphenols and flavonoids from both dried fig varieties using different solvents. Distilled water was found to be the best extraction solvent for polyphenols in both varieties, with GD figs showing a higher content (483.6 mg GAE/100 g) than CH figs (408.3 mg GAE/100 g). Meanwhile, ethanol was found to be the best extraction solvent for flavonoids, with GD figs (180.2 mg of QE/100 g) showing a higher content than CH figs (122.9 mg of QE/100 g). In addition, the majority of the extracts, particularly the ethanol extracts, showed high efficiency against the tested bacteria and yeast. Notably, dried GD figs had higher amounts of total phenolics, total flavonoids, and antioxidant and antimicrobial activities compared to dried CH figs. The study also revealed high correlations between phytochemical content and both antioxidant and antimicrobial activities. In conclusion, this study highlights the nutritional and health benefits of dried figs, particularly the GD variety, and their potential as a natural source of antimicrobial compounds. The findings suggest that dried figs could be an alternative source of natural antimicrobial agents for various applications in the food, pharmaceutical, and cosmetic industries.

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Utilisation de caractères morphologiques, physiologiques et de marqueurs moléculaires pour l'évaluation de la diversité génétique de trois cultivars de clémentinier

Cited by 7 publications

References 32 publications

Diversidade genética entre cultivares de mangueiras, baseada em caracteres de qualidade dos frutos

Diversidade genética entre cultivares de mangueiras, baseada em caracteres de qualidade dos frutos

Divergência genética em cultivares de morangueiro, baseada em caracteres morfoagronômicos

The Antioxidant and Antimicrobial Activities of Two Sun-Dried Fig Varieties (Ficus carica L.) Produced in Eastern Morocco and the Investigation of Pomological, Colorimetric, and Phytochemical Characteristics for Improved Valorization

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