这是一个完整的线粒体基因组的Bauhinia variegata (Leguminosae)
Chenyu Sun1, Yong Chen2, Danjing Zheng2
1School of Life Sciences, State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, Sun Yat-sen University, Guangzhou, China.
Mitochondrial DNA. Part B, Resources
|January 23, 2024
概括
测序了Bauhinia variegata的线粒基因组,揭示了它的遗传构成,有助于理解豆类家族的进化. 这项研究为未来的遗传学研究提供了关键资源.
科学领域:
- 植物基因组学 植物基因组学
- 分子进化是分子进化的过程.
- 人类遗传学 是一个学科.
背景情况:
- 类植物家族是多样化的,对一些物种的基因组数据有限.
- 了解植物线粒体基因组 (线粒体基因组) 对进化见解至关重要.
研究的目的:
- 为了组装和描述Bauhinia variegata的完整线粒基因组.
- 在使用线粒基因组数据的基础上,在Leguminosae家族内进行遗传学分析.
主要方法:
- 整个基因组测序和Bauhinia variegata线粒体的组装.
- 蛋白质编码基因,tRNA和rRNA的注释.
- 用15种Leguminosae物种的23个核心蛋白质编码基因进行了家族遗传学分析.
主要成果:
- 波希尼亚多种类型的线粒体组为437,271 bp,GC含量为45.5%.
- 它包含36个蛋白质编码基因,17个tRNA和3个rRNA.
- 遗传学分析将Bauhinia variegata定位为Tylosema esculentum的姐妹,属于Cercidoideae亚家族中的一个.
结论:
- 标志性的Bauhinia variegata线粒基因组是一个有价值的遗传资源.
- 这项研究增强了对Leguminosae家族内的进化关系的理解.
- 线粒基因组数据提供了关于Cercidoideae亚家族成员的原始基因的见解.
相关概念视频
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.5K
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...
12.5K
Animal Mitochondrial Genetics
7.6K
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...
7.6K
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
Export of Mitochondrial and Chloroplast Genes
3.7K
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...
3.7K


