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<p>Bread wheat (<i>Triticum aestivum</i>) is a vital staple crop, with an urgent need for increased production to help feed the world’s growing population. <i>Aegilops mutica</i> (2n = 2x = 14; T genome) is a diploid wild relative of wheat carrying valuable agronomic traits resulting in its extensive exploitation for wheat improvement. This paper reports a chromosome-scale, haplotype-resolved genome assembly of <i>Ae. mutica</i> using HiFi reads and Omni-C data. The final lengths for the curated genomes were ~4.65 Gb (haplotype 1) and 4.56 Gb (haplotype 2), featuring a contig N50 of ~4.35 Mb and ~4.60 Mb, respectively. Genome annotation predicted 96,723 gene models and repeats. In summary, the genome assembly of <i>Ae. mutica</i> provides a valuable resource for the wheat breeding community, facilitating faster and more efficient pre-breeding of wheat to enhance food security.</p>

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Chromosome-level haplotype-resolved genome assembly of bread wheat’s wild relative Aegilops mutica

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月13日

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  • Surbhi Grewal,
  • Cai-yun Yang,
  • Ksenia Krasheninnikova,
  • Joanna Collins,
  • Jonathan M. D. Wood,
  • Stephen Ashling,
  • Duncan Scholefield,
  • Gemy G. Kaithakottil,
  • David Swarbreck,
  • Eric Yao,
  • Taner Z. Sen,
  • Ian P. King,
  • Julie King

摘要

Bread wheat (Triticum aestivum) is a vital staple crop, with an urgent need for increased production to help feed the world’s growing population. Aegilops mutica (2n = 2x = 14; T genome) is a diploid wild relative of wheat carrying valuable agronomic traits resulting in its extensive exploitation for wheat improvement. This paper reports a chromosome-scale, haplotype-resolved genome assembly of Ae. mutica using HiFi reads and Omni-C data. The final lengths for the curated genomes were ~4.65 Gb (haplotype 1) and 4.56 Gb (haplotype 2), featuring a contig N50 of ~4.35 Mb and ~4.60 Mb, respectively. Genome annotation predicted 96,723 gene models and repeats. In summary, the genome assembly of Ae. mutica provides a valuable resource for the wheat breeding community, facilitating faster and more efficient pre-breeding of wheat to enhance food security.