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Related Concept Videos

Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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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...
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Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
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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...
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Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
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A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
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A Comparative Approach to Characterize the Landscape of Host-Pathogen Protein-Protein Interactions
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Comparative genomics in infectious disease.

Ahmed M Moustafa1, Arnav Lal2, Paul J Planet3

  • 1Division of Pediatric Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.

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Summary
This summary is machine-generated.

Genomics uses over one million bacterial genome sequences to understand infectious disease spread and pathogenesis. This review covers methods leveraging this data for bacterial research.

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Area of Science:

  • Microbiology
  • Genomics
  • Infectious Diseases

Background:

  • Over one million bacterial genome sequences are publicly available.
  • Genomics is a crucial tool for bacterial biology research.
  • Understanding bacterial infectious diseases is a public health priority.

Purpose of the Study:

  • To review recent genomic approaches for studying bacterial infectious diseases.
  • To highlight how large-scale genome data aids in understanding disease spread and pathogenesis.

Main Methods:

  • Review of literature on genomic approaches.
  • Analysis of methods leveraging whole genome sequences.
  • Focus on studies deciphering bacterial spread and pathogenesis.

Main Results:

  • Genomic data enables powerful insights into bacterial biology.
  • Large datasets facilitate understanding of pathogen evolution and transmission.
  • Specific methods are effective in tracking infectious disease dynamics.

Conclusions:

  • Genomics is indispensable for modern infectious disease research.
  • Leveraging public genome databases accelerates discoveries in bacterial pathogenesis.
  • Future research can further refine genomic strategies for disease control.