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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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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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Updated: Jul 14, 2026

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

Comparative genomics reveals novel biochemical pathways.

Jure Piskur¹, Klaus D Schnackerz, Gorm Andersen

¹Department of Cell and Organism Biology, Lund University, Sölvegatan 35, 22362 Lund, Sweden. Jure.Piskur@cob.lu.se

Trends in Genetics : TIG

|June 9, 2007

Summary

Researchers discovered a new metabolic pathway in Escherichia coli using comparative genomics. This pathway involves seven genes and aids in the degradation of nucleic acid precursors, expanding our understanding of cellular metabolism.

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Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

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Published on: June 11, 2015

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Last Updated: Jul 14, 2026

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

Published on: June 11, 2015

Area of Science:

Microbiology
Genomics
Biochemistry

Background:

Understanding cellular primary metabolism and the enzymes involved is crucial.
Comparative genomics and postgenomics offer powerful tools for biological discovery.

Purpose of the Study:

To investigate the enzymes and pathways involved in cellular primary metabolism.
To identify novel metabolic pathways and enzymes using advanced genomic approaches.

Main Methods:

Utilized comparative genomics and postgenomics techniques.
Analyzed a newly identified operon in Escherichia coli.
Focused on seven previously uncharacterized genes.

Main Results:

Discovered a novel metabolic pathway in Escherichia coli.
Identified a new operon containing seven uncharacterized genes.
The pathway is implicated in the degradation of nucleic acid precursors.

Conclusions:

Comparative genomics significantly impacts the discovery of novel pathways and enzymes.
This study expands the known metabolic repertoire of Escherichia coli.
Further research can elucidate the precise functions of these novel enzymes.