Seed oil content and fatty acid composition in a genebank collection of <i>Cucurbita moschata</i> Duchesne and <i>C. argyrosperma</i> C. Huber

Jarret, Robert L.; Levy, Irvin J.; Potter, Thomas L.; Cermak, Steven C.; Merrick, Laura C.

doi:10.1017/s1479262112000512

Cited by 18 publications

(17 citation statements)

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“…Also it was reported that oleic and palmitic acid contents of pepper seeds showed similar values, oleic acid content changed between 6.4% and 13.6% in fresh and between 9.3% and 10.7% in dried seeds. Plus, Jarret et al (2013) indicated that the most abundant fatty acid of the tested Capsicum species was linoleic acid (73.92-77.93%), followed by palmitic (10.62-14.43%), oleic (5.42-7.58%) and stearic (2.74-3.95%) acids. Results of this work were similar and agreed with the above mentioned studies.…”

Section: Resultsmentioning

confidence: 97%

“…Although a number of papers exist regarding the characterization of the seeds oils and fatty acid composition of different vegetable crops' seeds (Barthet, 2008;Mortley et al, 2012;Jarret et al, 2013), most do not cover the relations between fatty acid composition and seed germination and vigour under stressful temperatures. Therefore, the present study was undertaken to determine the fatty acid profile of seeds of pepper (Capsicum annuum L.) cultivars, as well as the relations between fatty acid profile, seed germination and vigour under controlled conditions.…”

Section: Introductionmentioning

confidence: 99%

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Potential effect of seed fatty acid profile of pepper (Capsicum annuum L.) cultivars on germination at various temperatures

Kaymak

2014

Zemdirbyste-Agriculture

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The present study was undertaken to determine the fatty acid profile of seeds of pepper (Capsicum annuum L.) cultivars 'Yağ', 'Çetinel-150' and 'Bağcı Çarliston' as well as the relations between fatty acid profile, seed germination and vigour at various temperatures (15, 25 and 35 °C). In this study, the germination percentage and vigour, total oil and the fatty acid profile of seeds of pepper cultivars were determined. There were significant differences in seed germination and vigour among the cultivars. Linoleic (C18:2n-6) acid was the principal fatty acid followed by palmitic (C16:0), oleic (C18:1n-9) and stearic (C18:0) acids in all cultivars. The highest concentrations of linoleic (77.8%), oleic (10.4%), palmitic (10.6%) and stearic (2.5%) acids were determined in the cultivars 'Çetinel-150', 'Yağ' and 'Bağcı Çarliston', respectively, and miristic, margaric, gadoleic and behenic acids at an even lower content (<1%). In addition to simple correlation coefficients (r) between the total oil, fatty acid composition, and germination percentage and vigour of the pepper cultivars, similar results were obtained in stepwise multiple regression analysis. According to the stepwise multiple regression analysis, although results for vigour were similar to the results of germination, in addition to linoleic acid, the indirect effect of miristic, margaric, palmitoleic and gadoleic acids were determined for vigour. Research results demonstrated that the low or high amount of fatty acids in the tested cultivars may play a major role on germination and vigour at various temperatures. Moreover, the role of linoleic acid (C18:2n-6) on germination and vigour associated with temperature was more explicit than that of the other fatty acids.

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Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Potential effect of seed fatty acid profile of pepper (Capsicum annuum L.) cultivars on germination at various temperatures

Kaymak

2014

Zemdirbyste-Agriculture

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“…The crop also has potential for the production of edible seed oil. Its seed oil comprises about 70% unsaturated fatty acids, and it has a high content of monounsaturated fatty acids [10,11,12], so it is a good substitute for other lipid sources that have higher contents of saturated fatty acids. The oil is also rich in bioactive components such as vitamin E and carotenoids [13], which are important antioxidants in the human diet, in addition to protecting the oil itself against oxidative processes.…”

Section: Introductionmentioning

confidence: 99%

Brazilian germplasm of winter squash (Cucurbita moschata D.) displays vast genetic variability, allowing identification of promising genotypes for agro-morphological traits

et al. 2020

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Winter squash fruits (Cucurbita moschata D.) are among the best sources of vitamin A precursors and constitute sources of bioactive components such as phenolic compounds and flavonoids. Approximately 70% of C. moschata seed oil is made up of unsaturated fatty acids, with high levels of monounsaturated fatty acids and components such as vitamin E and carotenoids, which represent a promising nutritional aspect in the production of this vegetable. C. moschata germplasm expresses high genetic variability, especially in Brazil. We assessed 91 C. moschata accessions, from different regions of Brazil, and maintained at the Federal University of Viçosa (UFV) Vegetable Germplasm Bank, to identify early-flowering accessions with high levels of carotenoids in the fruit pulp and high yields of seed and seed oil. Results showed that the accessions have high variability in the number and mass of seeds per fruit, number of accumulated degree-days for flowering, total carotenoid content, and fruit productivity, which allowed selection for considerable gains in these characteristics. Analysis of the correlation between these characteristics provided information that will assist in selection to improve this crop. Cluster analysis resulted in the formation of 16 groups, confirming the variability of the accessions. Per se analysis identified accessions BGH-6749, BGH-5639, and BGH-219 as those with the earliest flowering. Accessions BGH-5455A and BGH-5598A had the highest carotenoid content, with averages greater than 170.00 μg g-1 of fresh mass. With a productivity of 0.13 t ha-1 , accessions BGH-5485A, BGH-4610A, and BGH-5472A were the most promising for seed oil production. These last two accessions corresponded to those with higher seed productivity, averaging 0.58 and 0.54 t ha-1 , respectively. This study confirms the high potential of this germplasm for use in breeding for promotion of earlier flowering and increase in total content of fruit pulp carotenoids and in seed and seed oil productivity.

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“…The potential of C. moschata for the production of edible seed oil is also a promising aspect of this crop. Constituted of about 70% unsaturated fatty acids with a high content of monounsaturated fatty acid [12, 13], C. moschata seed oil is a good substitute for other lipid sources with higher saturated fatty acid contents. The oil is also rich in bioactive components such as vitamin E and carotenoids [4], which are important antioxidants in the human diet, in addition to providing protection to the oil against oxidative processes.…”

Section: Introductionmentioning

confidence: 99%

Germplasm of Brazilian winter squash (Cucurbita moschataD.) displays vast genetic variability, allowing identification of promising genotypes for agro-morphological traits

Gomes

Júnior

Almeida

et al. 2020

Preprint

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13Winter squash fruits (Cucurbita moschata D.) are among the best sources of vitamin A 14 precursors and constitute sources of bioactive components such as phenolic compounds and 15 flavonoids. Approximately 70% of C. moschata seed oil is made up of unsaturated fatty acids, 16 with high levels of monounsaturated fatty acids and components such as vitamin E and 17 carotenoids, which represent a promising nutritional aspect in the production of this vegetable. 18C. moschata germplasm expresses high genetic variability, especially in Brazil. We assessed 91 19 C. moschata accessions, from different regions of Brazil, and maintained at the UFV Vegetable 20 Germplasm Bank, to identify early-flowering accessions with high levels of carotenoids in the 21 fruit pulp and high yields of seed and seed oil. Results showed that the accessions have high 22 variability in the number and mass of seeds per fruit, number of accumulated degree-days for 23 flowering, total carotenoid content, and fruit productivity, which allowed selection for 24 considerable gains in these characteristics. Analysis of the correlation between these 25 characteristics provided information that will assist in selection to improve this crop. Cluster 26 analysis resulted in the formation of 16 groups, confirming the variability of the accessions. Per 27 se analysis identified accessions BGH-6749, BGH-5639, and BGH-219 as those with the earliest 28flowering. Accessions BGH-5455A and BGH-5598A had the highest carotenoid content, with 29 averages greater than 170.00 μg g -1 of fresh mass. With a productivity of 0.13 t ha -1 , accessions 30 BGH-5485A, BGH-4610A, and BGH-5472A were the most promising for seed oil production. 31These last two accessions corresponded to those with higher seed productivity, averaging 0.58 2 32 and 0.54 t ha -1 , respectively. This study confirms the high potential of this germplasm for use in 33 breeding for promotion of earlier flowering and increase in total carotenoid content of the fruit 34 pulp and in seed and seed oil productivity. 35 36 38 39 3 65 making this crop fundamental for ensuring healthier diets and promoting food security in the 66 regions where it is grown, particularly in less developed regions and in the context of family-67 based farming. 68 Associated with its socio-economic importance, C. moschata germplasm commonly expresses 69 high genetic variability in all regions where it occurs [15, 16, 17], especially in Brazil [18, 19, 70 20]. Archaeological evidence indicates that this species was present in Latin America prior to 71 colonisation, and appears to have already been an important component in the diet of the native 72 peoples living there [21, 22, 23]. Currently, the variability of this vegetable in Brazil is closely 73 tied to the human populations involved in its cultivation, who are predominantly family-based 74 farmers. The selection practised over time by these populations, associated with the exchange of 75 seeds between them, and the natural occurrence of hybridization in the germplasm of th...

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Seed oil content and fatty acid composition in a genebank collection of Cucurbita moschata Duchesne and C. argyrosperma C. Huber

Cited by 18 publications

References 25 publications

Potential effect of seed fatty acid profile of pepper (Capsicum annuum L.) cultivars on germination at various temperatures

Potential effect of seed fatty acid profile of pepper (Capsicum annuum L.) cultivars on germination at various temperatures

Brazilian germplasm of winter squash (Cucurbita moschata D.) displays vast genetic variability, allowing identification of promising genotypes for agro-morphological traits

Germplasm of Brazilian winter squash (Cucurbita moschataD.) displays vast genetic variability, allowing identification of promising genotypes for agro-morphological traits

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