数字农科院2.0

A near Telomere‐to‐telomere Genome Assembly and Graph‐based Pangenome of Tartary Buckwheat (Fagopyrum Tataricum)

文献类型： 外文期刊

作者： Wendy Li; Hanfei Liang; Jilin Sun; Xiao Zhang; Qiang He; Peng Zhou; Dongao Huo

关键词： Tartary buckwheat; comparative population genomics; gap‐free genome; graph‐based pan‐genome.

期刊名称： PLANT BIOTECHNOLOGY JOURNAL

ISSN： 1467-7644

年卷期： 2025 年

页码：

收录情况： SCIE（2025版）

摘要： artary buckwheat (Fagopyrum tataricum), a member of the Polygonaceae family, is a crop of substantial medicinal and nutritional importance. Since the initial genome assembly (~450Mb) was published in 2017, two subsequent versions have been reported. However, these assemblies remain incomplete with persistent gaps. Moreover, current genomic studies have primarily focused on single nucleotide polymorphisms (SNPs), while structural variations (SVs)—a major contributor to genetic diversity-remain underexplored. Here, we present a near complete T2T genome assembly for the high-yield cultivar Heifeng1 of Tartary buckwheat. We complemented this reference genome with deep resequencing of 163 F. tataricum accessions and generated chromosome-level assemblies for 10 representative accessions. By integrating the T2T genome with these 10 new assemblies and two previously published chromosomal assemblies, we constructed the first graphbased pangenome for Tartary buckwheat.

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