ArticleGigaScience2026
Improved reference assembly and core collection resequencing to facilitate exploration of important agronomical traits for the improvement of oilseed crop, Carthamus tinctorius L.
Article in GigaScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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12 authors.
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Abstract
backgroundSafflower (Carthamus tinctorius L.) is a drought-resilient oilseed crop. Besides producing edible oil rich in oleic and linoleic acids, it is also used in biofuels, cosmetics, coloring dyes, pharmaceuticals, and nutraceuticals. Despite its significant economic uses, the availability of genetic and genomic resources in safflower is limited.
resultsWe report an improved de novo genome assembly of safflower (Safflower_A2). A chromosome-level assembly of 1.15 Gb with telomeres and centromeric repeats was constructed using PacBio HiFi reads, optical maps, Illumina short reads, and Hi-C sequencing. Safflower_A2 shows better contiguity, completeness, and high-quality annotation than previous assemblies. The assembly was further validated with the help of a single-nucleotide polymorphism (SNP)-based linkage map. A genome-wide survey identified genes for comprehensive exploration of disease resistance in the safflower. Employing the de novo genome assembly as a reference, we used resequencing data of a global core collection of 123 accessions to carry out an SNP-based genome-wide association study, which identified significant associations for several traits and their haplotypes of agronomic value, including seed oil content. Resequencing data were also applied for a pan-genome analysis, which provided critical insights into genome diversity, identifying an additional ~11,000 genes and their functional enrichment that will be useful for region-specific breeding lines.
conclusionOur study provides insights into the genomic architecture of safflower by leveraging an improved genome assembly and annotation. Additionally, resources, including a high-density linkage map, marker-trait associations, and pan-genome development in this study, provide valuable resources for use in breeding and crop improvement programs by the global research community.
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