第一个完整的叶绿体基因组Cordia monoica:结构和比较分析
Rana M Alshegaihi1, Hassan Mansour2,3, Shouaa A Alrobaish4
1Department of Biology, College of Science, University of Jeddah, Jeddah 21493, Saudi Arabia.
Genes
|May 27, 2023
概括
测序了Cordia monoica的完整的叶绿体基因组,揭示了它的结构和基因含量. 这种基因组数据有助于理解博拉基纳科家族和Cordia属的系谱.
科学领域:
- 植物基因组学 植物基因组学
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- Cordia monoica是一种来自Boraginaceae家族的热带植物,具有重要的药用和经济价值.
- 了解它的遗传构成对于进一步的研究和利用至关重要.
研究的目的:
- 为了测序,组装和注释Cordia monoica.的完整的叶绿体 (cp) 基因组.
- 分析cp基因组内的结构特征,基因含量和重复序列.
- 调查蛋白质编码基因中的潜在的阳性选择,并评估cp基因组数据对遗传学分析的有用性.
主要方法:
- 在Cordia monoica.的全基因组测序.
- 生物信息组合和质细胞基因组的注释.
- 分析基因含量,重复序列,密码子的使用和积极选择.
- 对Boraginaceae物种的基因组学分析.
主要成果:
- 确定Cordia monoica的完整的叶绿体基因组为148,711 bp,具有典型的四部分结构.
- 它编码了134个基因,包括89个蛋白质编码基因,37个tRNA基因和8个rRNA基因.
- 分析揭示了1387个串联重复,其中六核酸是最常见的,并在积极选择下确定了12个蛋白质编码基因.
- 遗传学分析证实了cp基因组数据在家族和属级别的分类学分类方面的可靠性.
结论:
- 对Cordia monoica叶绿细胞基因组的表征提供了一个有价值的基因组资源.
- 这些发现支持使用叶绿体基因组数据来进行博拉基纳科家族内强大的遗传学重建.
- 这项研究增强了我们对植物基因组进化和多样性的理解.
相关概念视频
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.6K
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...
12.6K
The Anatomy of Chloroplasts
5.3K
Green algae and plants, including green stems and unripe fruit, harbor specialized organelles called chloroplasts to carry out photosynthesis. They coordinate both stages of photosynthesis — the light-dependent reactions and the light-independent reactions. The light-dependent reactions use sunlight to release oxygen and produce chemical energy in the form of ATP and NADPH, and the light-independent reactions capture CO2 and use ATP and NADPH to produce sugar.
Structure of...
Structure of...
5.3K
Anatomy of Chloroplasts
110.2K
Green algae and plants, including green stems and unripe fruit, harbor chloroplasts—the vital organelles where photosynthesis takes place. In plants, the highest density of chloroplasts is found in the mesophyll cells of leaves.
110.2K
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
Prokaryotic Gene Structure and Organization
136
Prokaryotic genomes exhibit a streamlined organization of coding and non-coding regions essential for gene expression and protein synthesis. While coding regions contain the genetic instructions for proteins or functional RNAs, non-coding regions regulate the precise transcription and translation of these genes.Coding Regions: Proteins and RNAsThe primary coding regions, known as structural genes, include sequences transcribed into messenger RNA (mRNA) and ultimately translated into...
136
Chromosome Structure
4.9K
4.9K


