Species relationships in the genusVasconcellea(Caricaceae) based on molecular and morphological evidence

Kyndt, Tina; Romeijn-Peeters, E.; Droogenbroeck, Bart Van; Romero-Motochi, J. P.; Gheysen, Godelieve; Goetghebeur, Paul

doi:10.3732/ajb.92.6.1033

Cited by 48 publications

(53 citation statements)

References 23 publications

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“…Some studies on papaya have reported intra-and inter-generic analysis using morphological data, isozyme, RFLP (restriction fragment length polymorphism), PCR-based molecular markers like AFLP (amplified fragment length polymorphism), RAPD (random amplified polymorphic DNA), ISSR (inter-simple sequence repeat), DAMD (directed amplification of minisatellite DNA), and microsatellites or SSR (simple sequence repeats) (Jobin-Decor et al, 1997;Parasnis et al, 1997;Van Droogenbroeck et al, 2002;Vitória et al, 2004;Kyndt et al, 2005;Saxena et al, 2005;Ocampo et al, 2006;Silva et al, 2007;Eustice et al, 2008;Oliveira et al, 2010). However, studies that use morpho-agronomic and molecular data together to assess the genetic material used in breeding programs are scarce.…”

Section: Introductionmentioning

confidence: 99%

Multivariate analysis to determine the genetic distance among backcross papaya (Carica papaya) progenies

Ramos

Pereira²,

Gonçalves

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Morpho-agronomic and molecular (RAPD and ISSR markers) data were used to evaluate genetic distances between papaya backcross progenies in order to help identify agronomically superior genotypes. Thirty-two papaya progenies were evaluated based on 15 morpho-agronomic characteristics, 20 ISSR and 19 RAPD primers. Manhattan, Jaccard and Gower distances were used to estimate differences based on continuous and binary data and combined analyses, respectively. Except for production, there were significant differences in the continuous variables among the genotypes. The molecular analysis revealed 193 dominant markers (ISSR and RAPD), being 53 polymorphic loci. Among the various clusters that were generated, the one based on a combined analysis of morpho-agronomic and molecular data gave the highest cophenetic correlation (0.72) compared to individual Multivariate analysis to estimate divergence in papaya analysis, consistently allocating the progenies into six groups. We found that the Gower algorithm was more coherent in the discrimination of the genotypes, demonstrating that a combination of molecular and agronomic data is valuable for studies of genetic dissimilarity in papaya.

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Section: Introductionmentioning

confidence: 99%

Multivariate analysis to determine the genetic distance among backcross papaya (Carica papaya) progenies

Ramos

Pereira²,

Gonçalves

et al. 2012

Genet. Mol. Res.

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“…The modification of fats and oils mean the use of lipases as biocatalysts indicates to modify the composition and the distribution in fatty acids of a greasy substance in order to improve the nutritional and/or rheological properties of them. These results have prompted interest in other latex plant extracts, in particular, the unripe fruit of the babaco plant (Kyndt et al, 2005), which contains a latex similar to that in C. papaya. Similarly, babaco (Carica pentagona) has also exhibited biocatalytic activities in lipolysis and acyl transfer reactions (Dhuique-Mayer et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Catalytic properties of lipase from Ficus trichopoda and Euphorbia unispina latex: Study of their typoselectivity

Mazou¹,

Djossou²,

Tchobo³

et al. 2017

J. App. Bioscience.

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Objective: The search for lipase with distinct features, from plant latex is of great importance for industrial applications. The catalytic properties of lipases from Ficus trichopoda and Euphorbia unispina latex were characterized. Methodology and Results: Fresh latex from Ficus trichopoda and Euphorbia unispina were collected and dried through solar. Dried latex was taken for complete proximate analysis and their activity was analysed by thin layer chromatography. The two lipases were optimally active at pH=5 and temperature of 35°C and 50°C for Ficus trichopoda and Euphorbia unispina latex, respectively. The presence of metal ions enhances the activity of Ficus trichopoda latex, while no significant enhancement was observed in the case of Euphorbia unispina latex. Both lipases were able to hydrolyze saturated esters, and showed typo-selectivity for this group. However, the lipases are weak selective for the hydrolysis of unsaturated esters, especially for 18:2 fatty acids. Conclusions and application of finding: The enzyme from Ficus trichopoda latex was able to attack specific oil to generate free fatty acids or ester as the major product. This understanding may help in devising efficient methods to produce valuable modified oils.

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“…The Caricaceae family consists of six genera, including Carica and Vasconcellea (Kyndt et al, 2005;Carvhalo and Rennes, 2012). Carica papaya L. is the only species of the genus Carica and the most studied.…”

Section: Introductionmentioning

confidence: 99%

Floral expression and pollen germination ability in productive mountain papaya (Vasconcellea pubescens A.DC.) orchards

Salvatierra-González

Jana-Ayala

2016

Chilean J. Agric. Res.

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Mountain papaya (Vasconcellea pubescens A.DC.) is described as trioecious in the centers of origin of Ecuador, Colombia, and Peru. However, under cultivation conditions in La Serena (30° S, 70° W), Chile, it is found to be dioecious and monoecious. The objective was to learn about the variations in floral expression of mountain papaya. Flowers from monoecious and dioecious plants were therefore identified and quantified during two seasons. In vitro pollen germination ability was also evaluated based on the factors of site, season, and plant sex. Monoecious plant inflorescences are polygamous; female and male flowers are observed, as well as bisexual flowers that are usually deformed. This condition allows them to be classified as an ambisexual plant. The existence of flowers of different sexes appears to depend on the season; the female dioecious plant is maintained as such, independently of climatic conditions. Pollen from male flowers, from both ambisexual and male plants, germinates 75% in summer, while germination decreases to 56% in spring (P ≤ 0.05). Flowering of female plants coincides with the permanent occurrence of male flowers in ambisexual plants, which ensures pollination without the need for male plants as pollinators in orchards. Based on this information, some management practices and possible lines of research about this species are proposed.

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Species relationships in the genusVasconcellea(Caricaceae) based on molecular and morphological evidence

Cited by 48 publications

References 23 publications

Multivariate analysis to determine the genetic distance among backcross papaya (Carica papaya) progenies

Multivariate analysis to determine the genetic distance among backcross papaya (Carica papaya) progenies

Catalytic properties of lipase from <i>Ficus trichopoda</i> and <i>Euphorbia unispina</i> latex: Study of their typoselectivity

Floral expression and pollen germination ability in productive mountain papaya (Vasconcellea pubescens A.DC.) orchards

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