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虫的染色体层次的基因组组

Zhefei Zeng^1,2, Chunmin Mao³, Jiayin Zhang⁴

¹Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau, Ministry of Education, School of Ecology and Environment, Xizang University, Lasa, China.

Scientific data

|August 28, 2025

概括

我们生成了一棵喜马拉雅树Hippophae salicifolia的高质量基因组. 这种基因组资源有助于理解其进化,多样性和保护,支持基因改进工作.

科学领域:

基因组学
植物科学
保护生物学

背景情况:

树是一种具有重要的生态和工业潜力的喜马拉雅特有树.
了解它的基因构成对于保护和利用至关重要.

研究的目的:

为Hippophae salicifolia构建一个高质量的染色体水平参考基因组.
为未来关于其性别决定,进化和多样性的研究奠定基础.

主要方法:

使用PacBio HiFi长读数,Illumina短读数和Hi-C技术.
组装了一个1.11Gb的基因组与12个伪染色体结合在一起.
预测了42547个蛋白质编码基因,有85%的功能注释.

主要成果:

实现了95.29 Mb的N50脚手架,与99.94%的序列定.
确定了重复的元素,其中长端重复 (LTR) 反转移素是最丰富的 (32.54%).
BUSCO分析证实了基因组组合和注释的高度完整性.

结论:

产生的高质量的基因组是Hippophae salicifolia的宝贵资源.
促进对性别决定,适应性进化和基因组多样性的研究.
支持基因改进,保护和资源利用方面的努力.

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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.