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农业害虫Mythimna separata的高质量的染色体级基因组组合

Lei Zhang¹, Alexander Yesaya¹, Zaiyuan Li¹

¹Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, 518120, Shenzhen, China.

Scientific data

|March 31, 2025

概括

东方军 (Mythimna separata) 的一个新的基因组组合为我们提供了关于它的遗传学的见解. 本资源有助于了解害虫的演变,并制定针对该农业害虫的有针对性的控制策略.

科学领域:

基因组学就是基因组学.
昆虫学昆虫学是一门学科.
农业科学农业科学

背景情况:

东方军 (Mythimna separata) 是一个重要的农业害虫,以其迁徙和多食的食习惯而闻名.
由于Mythimna separata的经济影响,有效的害虫防治策略至关重要.

研究的目的:

为Mythimna separata生成一个高质量的染色体级基因组组合.
识别基因和遗传元素,包括性染色体,用于进化和害虫控制研究.

主要方法:

利用Illumina,PacBio HiFi和Hi-C测序技术进行基因组组装.
利用生物信息分析进行基因预测和染色体定.
开发了一种基于PCR的方法,用于W链接序列检测.

主要成果:

取得了714.5 Mb的染色体级基因组组装,具有很高的连续性 (脚手架N50 = 22.7 Mb).
成功定了32个染色体,包括Z和W性别染色体.
预测了19,879个编码蛋白质的基因,并描述了W染色体 (30.55 Mb,68.34%的重复内容,824个基因).

结论:

染色体水平的基因组组合是研究Mythimna separata进化的宝贵资源.
识别W链接序列使得雌性特异性检测成为可能,支持性别调节的害虫控制策略.

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Genome Annotation and Assembly

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.