Dynamic management of genetic resources: first generation analysis of sunflower artificial populations

Belhassen, E.; Auge, Gabriela Alejandra; Ji, Jungwon; Billot, Claire; Fernández‐Martínez, José M.; Ruso, Juan M.; Varès, Didier

doi:10.1186/1297-9686-26-s1-s241

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…Combined research on breeding, cytogenetics and molecular techniques are required in the sunflower to understand natural and artificial interspecific gene transfer (introgression) and the selective forces involved (Belhassen et at., 1994), as well as to provide new tools to evaluate variability in this taxon.…”

Section: Discussionmentioning

confidence: 99%

Chromosomal differentiation in Helianthus annuus var. macrocarpus: heterochromatin characterization and rDNA location

et al. 1996

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The 2n = 34 chromosomes of the inbred line HA89, and the Flamme and Mirasol hybrids of Helianthus annuus var. macrocarpus possess centromeric heterochromatin as established by Giemsa C-banding. This heterochromatin can not be differentiated by fluorochromes such as DAPI or Chromomycin A3, with selective affinity for specific DNA base pairs. This situation probably results from either a balanced AT/GC composition of the involved repeat or the existence of alternating repetitive sequences of opposite base pair composition in these heterochromatic areas. However, there is also heterochromatin associated with the secondary constrictions on three pairs of chromosomes. This heterochromatin appears to be GC-rich according to its response to the fluorochrome treatments, thus indicating heterochromatin heterogeneity in H. annuus. Silver staining reveals the existence of active NORs associated with these secondary constrictions. In situ hybridization with an rDNA probe confirms these results and makes the existence of other inactive rDNA sites unlikely. These results are relevant to evolutionary and breeding studies on sunflowers.

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Section: Discussionmentioning

confidence: 99%

Chromosomal differentiation in Helianthus annuus var. macrocarpus: heterochromatin characterization and rDNA location

et al. 1996

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“…Most of the agro-morphological traits analysed here have been routinely included in many diversity surveys (i.e. Seiler, 1984; Alvarez et al , 1992a, b; Belhassen et al , 1994, Nooryazdan et al , 2010, Kholghi et al , 2011). In agreement with previous reports for wild sunflower populations (Seiler, 1984; Nooryazdan et al , 2010), LA, 100-SW and HD exhibited the highest coefficients of variation.…”

Section: Discussionmentioning

confidence: 99%

Genetic characterization of sunflower breeding resources from Argentina: assessing diversity in key open-pollinated and composite populations

Moreno

Nishinakamasu

Loray³

et al. 2013

Plant Genet. Resour.

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Open-pollinated (OPs) and composite populations (CPs) represent a valuable resource for sunflower breeding programmes. However, little is known about the levels and distribution of genetic variation within each of these populations. In this study, quantitative and qualitative traits along with molecular markers were used to evaluate 14 populations from the Instituto Nacional de Tecnología Agropecuaria (INTA) sunflower germplasm collection. These populations were chosen to represent historically important accessions that still play a central role within the INTA sunflower breeding programme due to their extensive variation in diverse agronomically important traits. Nine quantitative and eight qualitative agro-morphological descriptors were recorded and compared with those of a larger set of accessions representative of the phenotypic diversity of the sunflower collection. Molecular characterization was conducted on a total of 311 individuals using 16 microsatellite markers. Overall, the average gene diversity was 0.56 and the average number of alleles per locus was 6.25. No statistically significant differences in genetic diversity were detected between the OPs and CPs. Global estimates ofFSTrevealed very high levels of differentiation among accessions (FST= 0.413,P< 0.05). Population structure analyses were consistent with the observed levels of differentiation and identified two major groups. The results of this work show that high global diversity is preserved within the accessions analysed here. Additionally, this study provides a set of reliable and discriminant markers for the cost-effective molecular characterization of sunflower accessions, along with the guidelines for the delineation of sampling strategies for OPs and CPs, thus aiding the efficient management and exploitation of sunflower germplasm collections.

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“…The oil content of sunflower oil is generally between 30%-70% [13] , in which linoleic acid content is usually around 65%-73%. [14] Since the linoleic acid content is high, it is associated with some health benefits such as a reduction of blood pressure and serum cholesterol. [15] Moreover, sunflower oil is also rich in vitamin A, D, and E. [16,17] Therefore, regular consumption of sunflower oil is associated with a reduced risk of atherosclerosis, hypertension, and coronary heart disease.…”

Section: Introductionmentioning

confidence: 99%

Optimal formulation of a product containing black wheat granules

Sun

Zhang

Feei

et al. 2018

International Journal of Food Properties

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This study describes the development process of a healthy nutritional product containing black wheat granules (BWGP), which was based on Xinjiang characteristics of miscellaneous grains and nuts. BWGP was designed and developed as a local characteristic of nutritious food, which is produced from wheat, black sesame seeds, flour, corn flour, chickpeas, walnuts, peanuts, melon seeds, red dates, and brown sugar. The product was then underwent sterilization process followed by the inflated or vacuum quantitative packing as an instant ready-to-eat food. The best formula (%) was determined as follows: black wheat 30, corn flour 20, flour 15, chickpeas 15, black beans 2, peanuts 3, melon seeds 3, walnut 3, black sesame seeds 4, red date powder 15, sugar powder 15, maltodextrin 15, and sunflower oil 20. BWGP has several advantages, which include: a regional characteristic, simple production methods, and rich flavors. Overall, our study focused on the nutritional, flavor, and compositional effects and how a food product can be made healthier, more sustainable or more acceptable to the consumer.

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Dynamic management of genetic resources: first generation analysis of sunflower artificial populations

Cited by 4 publications

References 6 publications

Chromosomal differentiation in Helianthus annuus var. macrocarpus: heterochromatin characterization and rDNA location

Chromosomal differentiation in Helianthus annuus var. macrocarpus: heterochromatin characterization and rDNA location

Genetic characterization of sunflower breeding resources from Argentina: assessing diversity in key open-pollinated and composite populations

Optimal formulation of a product containing black wheat granules

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