News tagged with genomic variability
Mother of all humans lived 200,000 years ago
The most robust statistical examination to date of our species' genetic links to "mitochondrial Eve" -- the maternal ancestor of all living humans -- confirms that she lived about 200,000 years ago. The Rice University study ...
Aug 17, 2010 |
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Genomic research shows Indians descended from two groups
(PhysOrg.com) -- In a study published in the September 24th issue of Nature, an international team describes how they harnessed modern genomic technology to explore the ancient history of India, the world' ...
Sep 23, 2009 |
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Scientists take early steps toward mapping epigenetic variability
Brown University scientists have taken the first steps toward mapping epigenetic variability in cells and tissues. Mapping the human epigenome, similar to the human genome project in the 1990s, could someday ...
Aug 14, 2009 |
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On the move: 'Jumping genes' create diversity in human brain cells
Rather than sticking to a single DNA script, human brain cells harbor astonishing genomic variability, according to scientists at the Salk Institute for Biological Studies. The findings, to be published in ...
Aug 05, 2009 |
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Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...
May 23, 2012 |
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Hitting snooze on the molecular clock: Rabies evolves slower in hibernating bats
The rate at which the rabies virus evolves in bats may depend heavily upon the ecological traits of its hosts, according to researchers at the University of Georgia, the U.S. Centers for Disease Control and Prevention and ...
May 18, 2012 |
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New tool for tracking a voracious pest
Since it first appeared in Texas in 1986, the Russian wheat aphid has cost U.S. wheat growers an estimated $200 million each year. But U.S. Department of Agriculture (USDA) scientists have developed a new ...
May 09, 2012 |
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Greenhouse workers showcase soil and light
(Phys.org) -- Light and dirt can make all the difference when it comes to growing plants, stress scientists at the Cornell University Agricultural Experiment Station (CUAES). Yet many researchers fail to consider ...
May 08, 2012 |
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A matter of priorities: Bacteria evolved way to safeguard crucial genetic material
Just as banks store away only the most valuable possessions in the most secure safes, cells prioritise which genes they guard most closely, researchers at the European Molecular Biology Laboratory’s European ...
Apr 23, 2012 |
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Tasmanian tiger suffered low genomic diversity
The enigmatic Tasmanian tiger, known also as the thylacine, was hunted to extinction in the wild at the turn of the 20th century, and the last one died in a Tasmanian zoo in 1936.
Apr 18, 2012 |
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Genome-scale model of cyanobacterium developed
(Phys.org) -- In an important step toward engineering bacteria to produce biofuel, scientists have developed one of the first global models for the nitrogen-fixing photosynthetic cyanobacterium Cyanothece ...
Apr 11, 2012 |
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How to make high-end perfumes without whale barf
University of British Columbia researchers have identified a gene in balsam fir trees that could facilitate cheaper and more sustainable production of plant-based fixatives and scents used in the fragrance industry and reduce ...
Apr 05, 2012 |
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Genetic variation in human gut viruses could be raw material for inner evolution
(PhysOrg.com) -- A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect ...
Mar 19, 2012 |
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Honey bees study finds that insects have personality too
A new study in Science suggests that thrill-seeking is not limited to humans and other vertebrates. Some honey bees, too, are more likely than others to seek adventure. The brains of these novelty-seeking bees e ...
Mar 08, 2012 |
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List of search results for genomic variability
