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爬行草,Agrostis stolonifera的哈普洛型解析的染色体级基因组组合

Matthew D Robbins¹, Sunchung Park², B Shaun Bushman¹

¹United States Department of Agriculture, Agricultural Research Service, Forage and Range Research Unit, Logan, UT, 84322, USA.

Scientific data

|January 16, 2026

概括

研究人员已经为爬行草 (Agrostis stolonifera) 创建了一个高质量的基因组组,这是一个关键的草草. 这种基础资源将有助于改善草皮草的特征,如抗病能力和耐压力.

科学领域:

植物基因组学植物基因组学
草皮草科学草皮草科学
生物信息学是一种生物信息学.

背景情况:

爬行草 (Agrostis stolonifera) 是一个重要的凉季草草,以其细致的纹理和密集的生长而闻名.
它复杂的全四基因组和高重复性内容在历史上阻碍了基因组研究和育种.

研究的目的:

为了生成一个分类型解析的,染色体水平的基因组组合爬行草.
为未来的功能基因组学和分子育种工作提供基础资源.

主要方法:

使用了PacBio HiFi和牛津纳米孔测序技术.
在染色体水平组装中使用了Omni-C脚手架.
进行了BUSCO分析,以评估完整性和基因注释.

主要成果:

实现了5.4Gb的基因组组装,其支架N50为187.9Mb,包括28个完全分相的伪染色体.
组装完整度为98.8%,其中146,216个蛋白质编码基因被注释.
可转移的元素,主要是LTR-Gypsy,占基因组的79.8%;证据支持全聚类起源.

结论:

高质量的基因组组装是爬行草研究的重大进展.
该资源将通过功能基因组学和育种促进加强抗病能力,非生物应激耐受性和整体草皮质量的努力.

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相关概念视频

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.