ArticleScientific data2026
A telomere-to-telomere gap-free genome assembly of apricot (Prunus armeniaca L.).
Article in Scientific data, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Apricot (Prunus armeniaca L.), a globally cultivated temperate fruit crop, represents an economically critical species for fresh consumption and value-added products. Despite its agricultural importance, genomic resources have lagged behind other Prunus species, hampering trait dissection and molecular breeding. Here, we present the first telomere-to-telomere (T2T) gap-free genome assembly for the elite cultivar 'Sungold', achieved through the integration of multi-platform sequencing technologies: Illumina short-read, PacBio HiFi, ONT ultra-long, and Hi-C scaffolding. The final assembly spans 251.36 Mb with benchmark quality metrics: a contig N50 of 32.04 Mb, BUSCO completeness score of 98.8%, LTR Assembly Index (LAI) of 15.99, and a consensus quality value (QV) of 59.75. The T2T assembly achieved the resolution of all eight centromeres, together with fourteen intact telomeres, confirming its high structural integrity. Genomic annotation revealed 43.38% of repetitive sequences and 25,999 predicted protein-coding genes. This gap-free T2T genome resource establishes the highest-resolution reference for investigating apricot genome evolution, structural variation, and trait-associated genetic mechanisms in modern breeding programs.
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