在哺乳动物基因组中检测和注释独特区域
Beatriz Vieira Mourato1, Bernhard Haubold1
1Research Group Bioinformatics, Max-Planck-Institute for Evolutionary Biology, August-Thienemann-Str. 2, Plön, Schleswig-Holstein 24306, Germany.
G3 (Bethesda, Md.)
|November 6, 2024
概括
独特的基因组区域 (UR) 富含18种哺乳动物的发育基因. 一种高效的方法在塔斯马尼亚魔鬼的"匿名"UR中确定了一个重要的信号基因,突出显示UR用于基因组注释.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 发育生物学 发展生物学
背景情况:
- 已知长期独特的基因组区域 (UR) 富含人类和小鼠的发育基因.
- 这些UR的有效识别和注释对于理解基因组功能和进化至关重要.
研究的目的:
- 开发和验证一种有效的方法来识别哺乳动物基因组中的独特基因组区域 (UR).
- 调查UR的基因含量,特别关注缺乏先前注释的"匿名"UR.
- 评估URs对发育基因丰富和基因组注释策略的意义.
主要方法:
- 采用快速字符串匹配算法来识别至少10kb的独特基因组区域 (UR).
- 量化了计算资源的消耗和识别方法的准确性.
- 将该方法应用于18种哺乳动物的基因组,以进行全面的注释.
主要成果:
- 开发的方法有效地识别了18种哺乳动物基因组中的URs.
- 在所有研究的物种中,已识别的UR被持续丰富为发育基因.
- 在塔斯马尼亚魔鬼中发现了一个83kb的"匿名"UR,其中包含了必不可少的内醇聚酸-5-酸酶A基因.
结论:
- 独特的基因组区域 (UR) 是哺乳动物中保存的特征,与发育基因密切相关.
- 在以前未被注释的UR中发现重要的基因表明它们具有很高的生物学意义.
- 在未来的哺乳动物基因组注释工作中,应该优先考虑UR,特别是"匿名"的UR.
相关概念视频
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
RNA-seq
9.8K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
9.8K
Ribosome Profiling
3.5K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.5K
Multi-species Conserved Sequences
3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
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


