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Genetics News
Fri, 26 May 2017 12:57:30 EDT
Dog skull study reveals genetic changes linked to face shape
A study of dog DNA has revealed a genetic mutation linked to flat face shapes such as those seen in pugs and bulldogs.
Fri, 26 May 2017 08:45:55 EDT
Bioelectricity new weapon to fight dangerous infection
Changing natural electrical signaling in non-neural cells improves innate immune response to bacterial infections and injury. Tadpoles that received therapeutics, including those used in humans for other purposes, which depolarized their cells had higher survival rates when infected with E. coli than controls. The research has applications for treatment of emerging diseases and traumatic injury in humans.
Fri, 26 May 2017 08:45:36 EDT
DNA ladders: Inexpensive molecular rulers for DNA research
New license-free tools will allow researchers to estimate the size of DNA fragments for a fraction of the cost of currently available methods. The tools, called a DNA ladders, can gauge DNA fragments ranging from about 50 to 5,000 base pairs in length.
Fri, 26 May 2017 08:45:33 EDT
Knowledge gap on the origin of sex
There are significant gaps in our knowledge on the evolution of sex, according to a research review on sex chromosomes. Even after more than a century of study, researchers do not know enough about the evolution of sex chromosomes to understand how males and females emerge.
Thu, 25 May 2017 14:16:10 EDT
Mountain honey bees have ancient adaptation for high-altitude foraging
Mountain-dwelling East African honey bees have distinct genetic variations compared to their savannah relatives that likely help them to survive at high altitudes, report researchers.
Thu, 25 May 2017 12:56:46 EDT
Ancient genetic markers in sockeye salmon can help manage healthier fish stocks
A recent study identifies new genetic markers in sockeye salmon that can help improve management of fish populations.
Thu, 25 May 2017 12:30:42 EDT
In fruit fly and human genetics, timing is everything
Using fruit flies, researchers have discovered a cascade of molecular signals that program gene activity to drive the fly from one stage of maturation to the next, like a baby turning into an adult. Part of this programming involves alterations to the way DNA is packaged. Those alterations open certain regions of DNA to allow gene activity and close off other regions to prevent gene activity. These changes to DNA accessibility occur in sequence.
Thu, 25 May 2017 10:38:22 EDT
Size-sensing protein controls glucose uptake and storage in fat cells
Researchers have discovered that a molecule which can sense the swelling of fat cells also controls a signaling pathway that allows fat cells to take up and store excess glucose. Mice missing this protein, known as SWELL1, gain less weight (fat) than normal mice on a high-fat diet, but also develop diabetes.
Thu, 25 May 2017 10:03:31 EDT
Genetic risk factor for equine eye cancer identified
A genetic mutation in horses has been identified that should help identify horses that are at risk for squamous cell carcinoma of the eye and enable horse owners to make informed breeding decisions.
Thu, 25 May 2017 08:51:23 EDT
Scientists borrow from electronics to build circuits in living cells
Synthetic biology researchers have demonstrated a new method for digital information processing in living cells, analogous to the logic gates used in electric circuits. The circuits are the largest ever published to date in eurkaryotic cells and a key step in harnessing the potential of cells as living computers that can respond to disease, efficiently produce biofuels or develop plant-based chemicals.
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