来自Saccharum复杂物种的四个线粒体基因组的组装和比较基因组分析
Sicheng Li1,2, Cuifang Yang1, Zhen Wang2,3
1Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture & Rural Affairs, Nanning, China.
Frontiers in plant science
|August 5, 2024
概括
研究人员对四种Saccharinae物种的线粒体基因组进行了测序,这些物种对甘繁殖至关重要. 这项研究增强了对Saccharinae线粒体基因组进化和器官多样性的理解.
科学领域:
- 植物基因组学 植物基因组学
- 分子进化的分子进化.
- 生物信息学是一种生物信息学.
背景情况:
- 萨克拉姆复合体,包括像Miscanthus和Erianthus这样的属,对于甘育种至关重要.
- 对Saccharinae的基因组表征对于在甘中引入理想的特征很重要.
研究的目的:
- 组装和分析四个关键的Saccharinae物种的线粒体基因组 (线粒体基因组).
- 进行Saccharinae线粒体的比较分析,包括基因含量和进化关系.
主要方法:
- 利用Illumina和PacBio测序数据进行基于图形的线粒基因组组.
- 进行了比较分析,重点关注序列对线性,器官移植,遗传关系和基因重复/损失事件.
主要成果:
- 成功组装了Tripidium arundinaceum,Miscanthus sinensis,Erianthus rockii和Narenga porphyrocoma的线粒基因组. 这是一个很好的例子.
- 详细的比较分析揭示了对Saccharinae线粒体结构和演变的洞察力.
- 为Saccharinae提供了全面的线粒体基因组资源,与甘改进相关.
结论:
- 这项研究丰富了Saccharinae亚族的线粒体基因组数据库.
- 这些发现有助于理解植物线粒体基因组的进化动态.
- 增强了对多倍体Saccharum属和相关物种内有机体进化的洞察力.
相关概念视频
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.1K
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...
12.1K
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
Animal Mitochondrial Genetics
7.5K
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...
7.5K
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


