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tag evolution of altruism microbiology evolution

The Upside of Suicide
Sabrina Richards | Mar 20, 2013 | 3 min read
Researchers show that a bacterium’s self-sacrifice can benefit its community, even when the members are not strongly related.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Monitoring Mutations with Microfluidics
Ruth Williams | Mar 15, 2018 | 3 min read
A device dubbed the “mother machine” enables real-time observation of mutagenesis in single bacterial cells.  
Week in Review, March 18-22
Jef Akst | Mar 22, 2013 | 3 min read
Venom-based drugs for pain; microbes in the deep ocean; altruistic, suicidal bacteria; a call for open access; clinical sequencing; the newest genomes
bacteria inside a biofilm
How Bacterial Communities Divvy up Duties
Holly Barker, PhD | Jun 1, 2023 | 10+ min read
Biofilms are home to millions of microbes, but disrupting their interactions could produce more effective antibiotics.
The Genetics of Society
Claire Asher and Seirian Sumner | Jan 1, 2015 | 10 min read
Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.
Researchers in George Church&rsquo;s lab modified wild type ADK proteins (left) in <em >E.coli</em>, furnishing them with an nonstandard amino acid (nsAA) meant to biocontain the resulting bacterial strain.
A Pioneer of The Multiplex Frontier
Rashmi Shivni, Drug Discovery News | May 20, 2023 | 10 min read
George Church is at it again, this time using multiplex gene editing to create virus-proof cells, improve organ transplant success, and protect elephants.
Competition and Cooperation of Cheese Rind Microbes Exposed
Ashley Yeager | Jan 1, 2019 | 4 min read
Transposon mutagenesis give scientists a rare look at the most important interactions within microbial communities.
Nice bacteria finish last
Cristina Luiggi | Aug 31, 2010 | 4 min read
Altruism is alive and well in bacterial populations, according to new linkurl:research;http://www.nature.com/nature/journal/v467/n7311/full/nature09354.html in __Nature__, which found that a few altruistic bacteria help their neighbors withstand the assaults of antibiotics, even at a cost to themselves. Image:flickr/celerity59Researchers from Boston University found that a minority of resistant bacteria help their susceptible neighbors survive by producing and sharing high amounts of the signali
Uprooting the Tree of Life
Brendan Maher | Sep 15, 2002 | 6 min read
Image: Ned Shaw The cell--the irreducible unit of life on Earth--has an estimated history nigh on 3.5 billion years. Scientists since Charles Darwin have attempted to trace that history to a so-called last common ancestor. Comparative physiology and fossil records can take one only so far, so many researchers are trying to reach the tree of life's roots with tools of a genetic nature. Yet, the more they dig, the more convoluted those roots appear to be. Lateral gene transfer, the square peg in

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