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32 results for “Quinoa”
Crop and soil measurements of quinoa in Morocco and Belgium (SALAD project)
<p>Crop and soil measurements of quinoa used to calibrate the SWAP-WOFOST model for the SALAD project (https://www.saline-agriculture.com/en).</p> <p>The data were collected from two locations:</p> <p>1) Laayoune, Southern Morocco: ICBA-Q5 quinoa variety, grown in 2021 under irrigation with saline water at levels of 4, 12, and 20 dS/m (https://doi.org/10.3389/fpls.2023.1143170)</p> <p><br>2) Merelbeke, Belgium: Bastille quinoa variety, grown in 2018, 2019, 2022, and 2023 under rainfed and non-saline conditions (https://www.quinoalokaal.be/nl/, https://doi.org/10.3390/plants10122689, https://doi.org/10.3390/plants11030265)</p> <p> </p>
Chenopodium quinoa Willd. (BR0000011899846)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Chenopodium quinoa Willd. (BR0000011900504)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Chenopodium quinoa Willd. (BR0000011899600)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Chenopodium quinoa Willd. (BR0000015221247V)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Chenopodium quinoa Willd. (BR0000011561200)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Chenopodium quinoa Willd. (BR0000012397716)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Figure 2 in Afrosymetric method for quantifying saponins in Chenopodium Quinoa Willd. from Colombia
Figure 2. Percentage of saponin from quinoa materials in each Afrosymetric method. Different letters indicate significant differences according to the Fisher's mean comparison test (LSD) (p≤0.05). Vertical bars indicate standard error (n=3).
Figure 1 in Afrosymetric method for quantifying saponins in Chenopodium Quinoa Willd. from Colombia
Figure 1. Foam column in quinoa materials for each Afrosymetric method. (A) Standard Afrosymetric Method (MAE); (B) modified afrosymetric method (MAM); (C) Rapid Afrosymetric Method (MAR).
A chromosome-scale assembly of the quinoa genome provides insights into the structure and dynamics of its subgenomes
<p>Quinoa (<em>Chenopodium</em> <em>quinoa</em> Willd.) is an allotetraploid seed crop with the potential to help address global food security concerns. Genomes have been assembled for three accessions of quinoa; however, all assemblies are fragmented and do not reflect known chromosome biology. Here, we used in vitro and in vivo Hi-C data to produce a chromosome-scale assembly of the Chilean quinoa accession PI 614886 (QQ74). The final assembly spanned 1.326 Gb, of which 90.5% was assembled into 18 chromosome-scale scaffolds. The genome was annotated with 54,499 protein-coding genes, 97% of which were located on the 18 largest scaffolds. We also produced an updated genome assembly for the B-genome diploid <em>C. suecicum</em> and used it, together with the A-genome diploid<em> C. pallidicaule</em>, to identify genomic rearrangements within the quinoa genome, including a large pericentromeric inversion representing 71.7% of chromosome Cq3B. Repetitive sequences comprise 65.20%, 48.61%, and 57.91% of the quinoa, <em>C. pallidicaule</em>, and <em>C. suecicum</em> genomes, respectively. Evidence suggests that the B subgenome is more dynamic and has expanded more than the A subgenome. These genomic resources will enable more accurate assessments of genome evolution within the Amaranthaceae and will facilitate future efforts to identify variation in genes underlying important agronomic traits in quinoa.</p>
Leaf and shoot apical meristem transcriptomes of quinoa (Chenopodium quinoa Willd.) in response to photoperiod and plant development
<p>Our study focused on identifying key genes regulating flowering time and photoperiod response in quinoa. We examined the timing of photoperiod-induced floral transition and analyzed transcriptomes in photoperiod-sensitive and -insensitive quinoa accessions' leaf and shoot apical meristems. Histological analysis showed that floral transition in quinoa initiates two to three weeks after sowing. We found four groups of differentially expressed genes annotated in the QQ74-V2 reference genome that responded to plant development and floral transition, (i) 222 genes responsive to photoperiod in leaves, (ii) 1,812 genes differentially expressed between accessions under long-day conditions in leaves, (iii) 57 genes responding to developmental changes between weeks under short-day conditions in leaves, and (iv) 911 genes responding to floral transition within the shoot apical meristem. Interestingly, among numerous candidate genes, two<em> </em>putative <em>FT</em> orthologues and others (e.g., <em>SOC1</em>, <em>COL</em>, <em>AP1</em>) have been reported as key regulators of flowering time in other species. Additionally, we used co-expression networks to associate novel transcripts to a putative biological process based on the annotated genes within the same co-expression cluster. The candidate genes in this study would benefit quinoa breeding by identifying and integrating their beneficial haplotypes in crossing programs to develop adapted cultivars to diverse environmental conditions.</p> <p>We examined the timing of photoperiod-induced floral transition and analyzed transcriptomes in photoperiod-sensitive and -insensitive quinoa accessions' leaf and shoot apical meristems. Histological analysis revealed floral transition initiating two to three weeks after sowing. Differentially expressed genes were categorized in the QQ74-V2 reference genome, encompassing 222 genes responsive to photoperiod in leaves, 1,812 genes under long-day conditions, 57 genes during short-day conditions, and 911 genes during floral transition in shoot apical meristems. Notably, among numerous candidates, two putative FT orthologues and others (e.g., SOC1, COL, AP1) implicated in flowering time regulation in various species were identified. Co-expression networks associated novel transcripts with putative biological processes based on annotated genes in the same cluster. The candidate genes identified have potential applications in quinoa breeding, facilitating the incorporation of beneficial haplotypes in crossbreeding programs to develop cultivars adapted to diverse environmental conditions.</p>
Figure 3 in Afrosymetric method for quantifying saponins in Chenopodium Quinoa Willd. from Colombia
Figure 3. Dendrogram of five quinoa materials, grouped by the saponin content in the seeds.
dataset, Heating quinoa shoots results in yield loss by inhibiting fruit production and delaying maturity
<p>Full dataset and scripts used for Tovar et al. Heating quinoa shoots results in yield loss by inhibiting fruit production and delaying maturity</p>
Leaf and shoot apical meristem transcriptomes of quinoa (Chenopodium quinoa Willd.) in response to photoperiod and plant development
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Wild relatives to improve heat tolerance of cultivated quinoa (Chenopodium quinoa Willd.)
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A chromosome-scale assembly of the quinoa genome provides insights into the structure and dynamics of its subgenomes
Open the record for dataset details and reuse information.
Data from: Genome assembly of a diversity panel of Chenopodium quinoa
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Seed color and size analysis using sample quinoa images
<p>The dataset comprises of sample quinoa images acquired using a scanner. In addition, Matlab code is provided that can be used to extract the color and size features. The project was funded by competitive USDA-NIFA Agriculture and Food Research Initiative award WNP08532 (accession no. 1008828).</p>
FIGURE 1 in Lectotypification of the name Chenopodium hircinum, a wild relative of the pseudocereal crop species C. quinoa (Chenopodiaceae)
FIGURE 1. Lectotype of the name Chenopodium hircinum Schrad. (LE00011694!, the right-hand specimen consisting of two plant fragments).
Quinoa Biscuit & CVD Risk Trial
ClinicalTrials.gov study NCT03291548. IPD Sharing: NO. Countries: 1. Publications: 1.
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