In the 150 years since Charles Darwin recognised the kinship of all life, scientists have worked to fulfil his dream of a complete Tree of Life. Today, the methods used to trace the evolutionary branches back through time ...
Evolution
Sep 15, 2015
0
24
An international team of scientists has determined how harmless E. coli gut bacteria in chickens can easily pick up the genes required to evolve to cause a life-threatening infection. Their study, published in Nature Communications, ...
Cell & Microbiology
Feb 12, 2021
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465
Cholera is caused when the bacterium Vibrio cholerae infects the small intestine. The disease is characterized by acute watery diarrhea resulting in severe dehydration. EPFL scientists have now demonstrated that V. cholerae ...
Cell & Microbiology
Jan 1, 2015
1
2
Rice University scientists are developing strategies to keep germs from evolving resistance to antibiotics by heading them off at the pass.
Cell & Microbiology
Aug 4, 2015
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2667
The transfer of genes from one organism to another is potentially a rapid way for evolution to occur and for complicated novel functions to emerge. However, even when the two organisms in question are in close proximity to ...
Biotechnology
Dec 20, 2016
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421
(PhysOrg.com) -- A new study suggests that genes are transferred from one micro-organism to another up to a hundred million times more frequently than previously thought.
Bacteria in the human body are sharing genes with one another at a higher rate than is typically seen in nature, and some of those genes appear to be traveling—independent of their microbial hosts—from one part of the ...
Cell & Microbiology
Apr 11, 2019
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928
(PhysOrg.com) -- In On The Origin of Species, Darwin used the image of a tree of life to illustrate how species evolve, one from another. Even today, branches sprouting from lower branches (representing ancestors) is how ...
Indiana University scientists have made the first direct observation of a key step in the process that bacteria use to rapidly evolve new traits, including antibiotic resistance.
Cell & Microbiology
Jun 11, 2018
1
371
If you still remember that "Dear King Phillip Came Over For Good Spaghetti," you'll likely also recall the corresponding taxonomic ranks of biology: domain, kingdom, phylum, class, order, family, genus and species. The domains ...
Evolution
Jan 15, 2024
0
92
