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Updated: Jan 18, 2026

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一个端粒到端粒的基因组组合Cyperus difformisis

Jingbo Li¹, Jian Zhao², Wei Zheng³

¹Engineering Research Center for Salt- and Alkali-Tolerant Food Crop Seeds of Guangxi Zhuang Autonomous Region, Guangxi Vocational University of Agriculture, Nanning, 530000, China.

Scientific data

|January 15, 2026

概括

产生了Cyperus difformis的高质量基因组组,这是一个有问题的大米杂草. 本资源有助于了解除草剂耐药性机制和C. difformis的演变.

科学领域:

基因组学就是基因组学.
植物科学植物科学
农业科学农业科学

背景情况:

Cyperus difformis是大米种植的主要杂草,导致大量的产量损失.
在C. difformis中,除草剂耐药性的快速演变使杂草管理策略复杂化.

研究的目的:

为了生成一个高质量的,端粒到端粒基因组组的Cyperus difformis.
为了解除草剂耐药性和C. difformis生物学提供一个基础的基因组资源.

主要方法:

使用了PacBio HiFi,牛津纳米孔技术 (ONT),MGI短读和高通量染色体构成捕获 (Hi-C) 的组合.
使用Hi-C数据和定义的端粒,对染色体进行定.

主要成果:

组装了一个226 Mb的基因组,用一个13.08 Mb的N50支架.
定了97.24%的结合体到18个染色体,并确定了35个端粒.
标注了19347个蛋白质编码基因 (91.8%) 和特征重复序列.

结论:

端粒对端粒基因组组合的C.形体是一个宝贵的资源.
促进了种群遗传学,比较基因组学和这一关键杂草物种中除草剂耐药性的演变方面的研究.

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