对Vibrio toranzoniae菌株的比较基因组学
Rubén Barcia-Cruz1, Sabela Balboa1, Alberto Lema1
1Universidade de Santiago de Compostela.
Research square
|June 3, 2024
概括
对Vibrio toranzoniae的基因组分析揭示了菌株的多样性,在机动性和铁的获取方面存在显著差异. 遗传学分析表明地理隔离,影响细菌分类.
科学领域:
- 海洋微生物学 海洋微生物学
- 细菌基因组学是一种细菌基因组学.
背景情况:
- 来自Splendidus类的海洋细菌Vibrio toranzoniae在各种宿主和海水中发现,这表明生活方式和分布的多样化.
- 之前的研究表明,西班牙加利西亚的海具有广泛的地理范围和与健康海的隔离.
研究的目的:
- 为了研究Vibrio toranzoniae菌株之间的基因组变异.
- 为了确定这些菌株的遗传关系.
- 为了澄清某些孤立物种的分类学地位.
主要方法:
- 使用各种技术进行全基因组测序.
- 生物信息分析包括基因组注释和比较.
- 核心和骨分析.
- 遗传学上的推断.
主要成果:
- 基因组比较显示高同质性 (DDH 77.10-82.30,OrthoANI>97%) 但在运动性,囊合成,铁获取和移动遗传元素方面存在显著差异.
- 核心基因组类遗传与生活方式没有相关性.
- 潘格诺姆氏种系表明在同一地区的地理隔离.
- 基因组内容各不相同,核心基因组大小从2,766到2,953个基因,泛基因组从6,132到6,278个基因.
结论:
- 尽管总体相同,但Vibrio toranzoniae菌株表现出基因组异质性.
- 遗传学分析强调了基因组级数据对于准确的细菌分类的重要性.
- 一些先前被确定为V. toranzoniae的单体的重新分类是合理的.
更多相关视频
09:34Development of a More Sensitive and Specific Chromogenic Agar Medium for the Detection of Vibrio parahaemolyticus and Other Vibrio Species
Published on: November 8, 2016
14.6K
07:43Coincubation Assay for Quantifying Competitive Interactions between Vibrio fischeri Isolates
Published on: July 22, 2019
8.1K
相关概念视频
02:16Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.4K
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...
12.4K
00:46Genomic DNA in Prokaryotes
43.8K
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Genomic Diversity in Bacteria
Although bacterial genomes are much...
43.8K
02:54Evolutionary 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
01:29Bacterial Flora of the Large Intestine
421
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
421
00:58Genomic DNA in Eukaryotes
46.8K
Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
46.8K
00:57Antibiotic Selection
53.1K
Overview
53.1K