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tag cloning evolution microbiology ecology

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.
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.
Updated Sept 1
coronavirus pandemic news articles covid-19 sars-cov-2 virology research science
Follow the Coronavirus Outbreak
The Scientist | Feb 20, 2020 | 10+ min read
Saliva tests screen staff and students at University of Illinois; Study ranks species most susceptible to SARS-CoV-2 infection; COVID-19 clinical trials test drugs that inhibit kinin system
Notebook
Eugene Russo | Jun 20, 1999 | 7 min read
WHY X Y? Cloning is not just for females anymore. The same University of Hawaii researchers that cloned 50 healthy female mice a year ago (T. Wakayama et al., "Full-term development of mice from enucleated oocytes injected with cumulus cell nuclei," Nature, 394:369-74, July 23, 1998) recently reported the first-ever cloning of an adult male mouse (T.W. Wakayama, R. Yanagimachi, "Cloning of male mice from adult tail-tip cells," Nature Genetics, 22:127-8, June 1999). Named "Fibro" after the fibro
Chloroplast Studies Point to Crop Enhancements
Barry Palevitz | Apr 11, 1999 | 5 min read
With news about Dolly and embryonic stem cells the stuff of cocktail party conversation, cloning a transgenic sheep or cow seems like child's play. The recipe is simple: Insert a pet gene into the nucleus of a cultured cell, fuse it with an enucleated egg, and voilà--a cow with high-octane milk. But incorporating genes into nuclear chromosomes isn't the only road to fame and fortune. Animals and plants have other sources of genetic information--their respiratory mitochondria and photosy
Contributors
Kate Yandell | Jul 1, 2013 | 3 min read
Meet some of the people featured in the July 2013 issue of The Scientist.
Automated Colony Pickers Evolve
Helen Dell(hdell@the-scientist.com) | Jul 3, 2005 | 6 min read
Everyone knows that the first genome sequencing projects took years of work and represent the combined product of tens of thousands of individual fragments.
First DOE Microbe Sequencing Project Grants Widely Hailed As Potential `Treasure Trove'
Karen Young Kreeger | Feb 5, 1995 | 6 min read
A recently established Department of Energy (DOE) initiative is expected to yield major scientific and commercial contributions as it embarks on its multimillion-dollar effort to sequence the entire genome of several free-living microorganisms. Scientists anticipate that the program will substantially expand understanding of evolutionary relationships, while it also advances genome-sequencing technology. Commercial application of the sequences, such as industrial enzymes used in cleaning up th
"Big Cross" Lands Sticklebacks in the Spotlight
David Secko | Nov 7, 2004 | 5 min read
Marine threespine sticklebacks haven't morphologically changed in an estimated 10 million years, but their freshwater offshoots show no signs of slowing down. These 5-cm-long, freshwater fish have undergone a recent evolutionary change, variably losing their calcified body armor and retractable pelvic and dorsal spines. Remarkably, isolated marine and freshwater sticklebacks can be hybridized in the laboratory, a fact that is allowing researchers to analyze the genetics behind their natural dive
Get the Basics
Gail Dutton | Nov 10, 2002 | 6 min read
Photo: Courtesy of Michelle Lizott Waniewski  DROP AND GIVE ME 20! Attendees at the 2002 NEB workshops labor through basic training. If you've ever been confused by the jargon of molecular biology, you are not alone. With biotechnology in the news day by day, it is easy to forget that for many of us--even for some readers of The Scientist--the tools, techniques, and concepts that undergird much of this research are foreign. To help keep up, some scientists are queuing up to learn the bas

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