线粒体和叶绿体基因组 Navicula incerta CACC 0356 的完整序列和表征
相关实验视频
Updated: May 31, 2025

09:40
Novel Sequence Discovery by Subtractive Genomics
Published on: January 25, 2019
8.6K
1Technical Innovation Center for Utilization of Marine Biological Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361000, China.
Life (Basel, Switzerland)
|January 25, 2025
概括
这项研究对海洋藻Navicula incerta的完整线粒体和叶绿体基因组进行了测序. 这项研究扩大了藻类的基因组资源,并有助于理解藻的基因组和进化.
科学领域:
- 海洋生物学 海洋生物学
- 基因组学就是基因组学.
- 物理学的生理学
背景情况:
- Navicula incerta是一种海洋藻,在营养和水产养殖中具有潜在的应用.
- 对于Navicula类的有限的器官基因组数据阻碍了全面的理解和利用.
- 这项研究解决了N. incerta.基因组数据的稀缺问题.
研究的目的:
- 为了测序和注释 Navicula incerta CACC 0356.的完整线粒体和质细胞基因组.
- 通过其器官基因组,研究N. incerta的原生和进化史.
- 扩大藻的基因组资源,并促进遗传多样性分析.
主要方法:
- 关于N. incerta的全基因组测序 CACC 0356.
- 线粒体 (mtDNA) 和质体 (cpDNA) 基因组的生物信息注释.
- 与相关的藻物种进行比较基因组分析.
主要成果:
- 线粒体基因组 (mtDNA) 是61,320个基因组,其中包括34个蛋白质编码基因,24个tRNA和34个rRNA.
- 叶绿体基因组 (cpDNA) 是129,090 bp,包含127个蛋白质编码基因,30个tRNA和7个rRNA.
- 遗传学分析表明,N. incerta与Fistulifera物种密切相关,属于Naviculaceae系.
结论:
- N. incerta 的完整器官基因组序列为藻类提供了宝贵的基因组资源.
- 了解N. incerta的基因组结构和进化史对于其应用至关重要.
- 这项基础研究支持未来对藻的遗传多样性的研究.
相关概念视频
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
12.0K
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...
12.0K
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
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

