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Updated: Jun 19, 2025

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
08:03

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations

Published on: December 7, 2021

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移动遗传元素定义了Salmonella enterica血清 Typhi pangenome 的非随机结构

Arancha Peñil-Celis1, Kaitlin A Tagg2, Hattie E Webb2

  • 1Instituto de Biomedicina y Biotecnología de Cantabria, (CSIC, Universidad de Cantabria), Santander, Spain.

mSystems
|July 26, 2024
PubMed
概括

分析辅助基因组与核心基因一起,可以提供更完整的细菌进化图片. 这项研究揭示了沙门氏菌 Typhi 种群中的非随机结构,由移动遗传元素驱动,改善了基因组流行病学.

关键词:
这种类型的沙门氏菌.抗微生物耐药性 抗微生物耐药性潘格诺姆 (pangenome) 是一个名字.塑料体中的塑料.

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Author Spotlight: Efficiently Eliminating Bacteriophages from Infected Salmonella Cultures Using Lipopolysaccharides07:19

Author Spotlight: Efficiently Eliminating Bacteriophages from Infected Salmonella Cultures Using Lipopolysaccharides

Published on: June 28, 2024

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An Allelotyping PCR for Identifying Salmonella enterica serovars Enteritidis, Hadar, Heidelberg, and Typhimurium12:18

An Allelotyping PCR for Identifying Salmonella enterica serovars Enteritidis, Hadar, Heidelberg, and Typhimurium

Published on: July 22, 2011

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Genomic DNA in Prokaryotes

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Although bacterial genomes are much...
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Genome Size and the Evolution of New Genes

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
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Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
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The donor site from where the transposon is excised is either degraded or...
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