完整的线粒体基因组的orthotomus sutorius (形:cisticolidae) (形:cisticolidae) 的一个人
Hui Gao1, Zhicheng Yao2, Yanyan Zhao1
1Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning, China.
Mitochondrial DNA. Part B, Resources
|April 4, 2025
概括
黑子裁鸟 (Orthotomus sutorius) 的完整线粒体基因组被测序. 遗传学分析将其与Cisticola juncidis密切相关,有助于对Cisticolidae家族的进化研究.
科学领域:
- * 基因组学和生物信息学
- * 分子进化过程中的分子进化.
- * 鸟类学 鸟类学
背景情况:
- *线粒体基因组 (线粒体基因组) 提供了对进化关系和种群遗传学的关键见解.
- * 黑子裁鸟 (Orthotomus sutorius) 是Cisticolidae家族中的一种物种,其进化史需要进一步阐明.
- * 分子基因组的测序和分析对于了解鸟类多样性和类遗传学至关重要.
研究的目的:
- *对Orthotomus sutorius的完整线粒体基因组进行测序和表征.
- *使用线粒基因组数据调查O. sutorius在Cisticolidae家族中的遗传位置.
- *为未来对O. sutorius和相关物种的进化和分类学研究提供宝贵的遗传资源.
主要方法:
- *使用Illumina Novaseq平台进行DNA提取和线粒基因组测序.
- *生物信息分析组装和注释线粒基因组,识别蛋白质编码基因 (PCG),tRNA基因,rRNA基因和控制区域 (CR).
- * 用10个Cisticolidae物种和一个外群的线粒体基因组序列进行基因树重建.
主要成果:
- *成功测序了Orthotomus sutorius的完整线粒基因组,测量了16982个基对 (bp).
- * 线粒基因组包括标准组件:13个PCG,22个tRNA基因,两个rRNA基因 (12S和16SrRNA) 和一个控制区域 (CR).
- * 遗传学分析显示,O. sutorius与Cisticola juncidis.密切联系在一起.
结论:
- *新测序的Orthotomus sutorius线粒基因组为进化研究提供了宝贵的遗传资源.
- * 遗传学发现支持O. sutorius和C. juncidis在Cisticolidae家族中的密切进化关系.
- *这项研究有助于更好地了解鸟类的分子进化和Cisticolidae的类型.
相关概念视频
Animal Mitochondrial Genetics
7.4K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
7.4K
Export of Mitochondrial and Chloroplast Genes
3.6K
A eukaryotic cell can have up to three different types of genetic systems: nuclear, mitochondrial, and chloroplast. During evolution, organelles have exported many genes to the nucleus; this transfer is still ongoing in some plant species. Approximately 18% of the Arabidopsis thaliana nuclear genome is thought to be derived from the chloroplast’s cyanobacterial ancestor, and around 75% of the yeast genome derived from the mitochondria’s bacterial ancestor. This export has occurred...
3.6K
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
11.9K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
11.9K
Mitochondria
8.9K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
8.9K
Mitochondrial Protein Sorting
4.1K
Mitochondria are double-membrane organelles of the eukaryotes involved in cellular metabolism, signaling, ATP synthesis, and programmed cell death. Each of these processes requires specific proteins and enzymes that must be correctly sorted to the right mitochondrial subcompartment for the proper functioning of the organelle.
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...
4.1K
Mitochondrial Membranes
6.6K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
6.6K


