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<p>The vetch aphid, <i>Megoura crassicauda</i> is a globally distributed, major agricultural pest of beans and other leguminous crops, causing significant economic losses yearly. Its rapid reproductive rate and capacity to develop resistance to diverse pesticides pose substantial control challenges. However, the absence of high-quality reference genomes has impeded deeper exploration of gene function and hindered the development of new management strategies. Here, we present the first chromosomal-level high-quality genome of <i>M. crassicauda</i>, generated by integrating short-read, PacBio long-read and Hi-C sequencing technologies. The final assembly spans 440.80 Mb, comprising 179 contigs with a contig N50 of 41.57 Mb, and 94.82% of the sequence was successfully anchored to 6 pseudo-chromosomes. We annotated 19,424 protein-coding genes and achieved 97.10% BUSCO completeness. This high-quality genome provides an essential genetic resource for elucidating <i>M. crassicauda</i> biology and facilitates the development of targeted management strategies against this pest.</p>

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Chromosome-level genome assembly of vetch aphid Megoura crassicauda (Hemiptera: Aphididae)

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月30日

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  • Yuanchen Zhang,
  • Yue Gao,
  • Yuhao Ban,
  • Ruimin Li,
  • Xiaoyun Wang,
  • Jingli Lv,
  • Miaomiao Xin,
  • Jingshun Wang,
  • Xiao Chang,
  • Jichao Ji

摘要

The vetch aphid, Megoura crassicauda is a globally distributed, major agricultural pest of beans and other leguminous crops, causing significant economic losses yearly. Its rapid reproductive rate and capacity to develop resistance to diverse pesticides pose substantial control challenges. However, the absence of high-quality reference genomes has impeded deeper exploration of gene function and hindered the development of new management strategies. Here, we present the first chromosomal-level high-quality genome of M. crassicauda, generated by integrating short-read, PacBio long-read and Hi-C sequencing technologies. The final assembly spans 440.80 Mb, comprising 179 contigs with a contig N50 of 41.57 Mb, and 94.82% of the sequence was successfully anchored to 6 pseudo-chromosomes. We annotated 19,424 protein-coding genes and achieved 97.10% BUSCO completeness. This high-quality genome provides an essential genetic resource for elucidating M. crassicauda biology and facilitates the development of targeted management strategies against this pest.