一个临界危的Ochetobius elongatus的染色体级基因组组合
Lekang Li1, Xuanguang Liang2, Jiatong Zhang2
1Jiujiang Academy of Agricultural Sciences, Jiujiang, 332000, Jiangxi, China.
Scientific data
|December 20, 2024
概括
研究人员使用PacBio和Hi-C数据对临灭绝的Ochetobius elongatus鱼基因组进行了测序. 这种高质量的基因组组件有助于保护长江物种的保护工作.
科学领域:
- 基因组学就是基因组学.
- 保护生物学 保护生物学
- 鱼类学 鱼类学 鱼类学
背景情况:
- 长鱼 (Ochetobius elongatus) 是长江本土的一种临灭绝的鱼类.
- 有限的基因组资源阻碍了对O. elongatus.有效的保护策略.
研究的目的:
- 为了组装一个染色体规模的基因组为Ochetobius elongatus.
- 为保护和研究提供高质量的基因组资源.
主要方法:
- 使用PacBio和Hi-C测序技术进行基因组组装.
- 进行了包括BUSCO和对线性评估在内的生物信息分析.
主要成果:
- 产生了883.1Mb的染色体规模基因组组件,包括24个伪染色体和35.1Mb的N50支架.
- 该组件实现了98.3%的BUSCO完整性,并确定了28674个编码蛋白质的基因.
- 观察到与相关物种有很高的直线性,这表明了强大的组装质量.
结论:
- 染色体规模的基因组组装代表了Ochetobius elongatus保护的重大进步.
- 这种基因组资源将促进对遗传多样性的研究,并为有针对性的保护策略提供信息.
相关概念视频
Lampbrush Chromosomes
7.8K
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...
7.8K
Genome Annotation and Assembly
18.8K
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.
18.8K
Evolutionary Relationships through Genome Comparisons
5.7K
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...
5.7K


