临灭绝的树种Ormosia henryi Prainin的染色体级基因组组合
Chengchuan Zhou1, Qiang Wen1, Dan Zeng1
1Jiangxi Academy of Forestry, Nanchang, 330013, Jiangxi, P.R. China.
Scientific data
|June 23, 2025
概括
为临灭绝的Ormosia henryi树创建了一个高质量的基因组组. 这为其保护,利用和理解其独特的生物特征提供了关键的遗传信息.
科学领域:
- 基因组学就是基因组学.
- 植物科学 植物科学
- 保护生物学 保护生物学
背景情况:
- 奥尔莫西亚亨利 (Fabaceae家族) 是一个临灭绝的树,具有重要的经济,装饰和药用价值.
- 有限的遗传数据和基因组组装阻碍了该物种的研究,保护和利用.
研究的目的:
- 为了生成Ormosia henryi的染色体级基因组组合.
- 为O. henryi的研究,保护和应用提供一个基础的基因组资源.
主要方法:
- 使用Pac-Bio HiFi,Hi-C和短读测序来进行基因组组装.
- 定了99.97%的序列到八个伪染色体.
- 预测和功能注释的蛋白质编码基因.
主要成果:
- 组装了一个2.69 Gb的染色体级基因组,其支架N50为354.08 Mb.
- 获得了高的BUSCO评分 (98.20%),表明基因组完整.
- 鉴定了42260个编码蛋白质的基因,其中88.42%的功能注释.
- 在基因组内具有特征的重复序列 (69.09%).
结论:
- 奥尔莫西亚亨利的染色体级基因组组合是一个宝贵的资源.
- 促进未来的保护工作和生物技术应用.
- 能够进行进化研究并阐明关键的生物特征.
相关概念视频
Evolutionary Relationships through Genome Comparisons
6.2K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
6.2K
Genome Annotation and Assembly
19.4K
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.
19.4K
Lampbrush Chromosomes
8.1K
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
8.1K
Synteny and Evolution
3.4K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.4K


