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Genetics News
Tue, 29 Jul 2014 07:35:24 EDT
Healthy lifestyle may buffer against stress-related cell aging
A new study shows that while the impact of life’s stressors accumulate overtime and accelerate cellular aging, these negative effects may be reduced by maintaining a healthy diet, exercising and sleeping well.
Mon, 28 Jul 2014 21:19:35 EDT
Generating a genome to feed the world: African rice sequenced
An international team of scientists has sequenced the genome of African rice. The new information will enable scientists and agriculturalists to develop varieties of rice that can survive in a changing climate.
Mon, 28 Jul 2014 16:23:46 EDT
Forced mutations doom HIV: How potential HIV drug exacts its toll on viral populations
Fifteen years ago, medical researchers had a novel idea for an HIV drug. They thought if they could induce the virus to mutate uncontrollably, they could force it to weaken and eventually die out -- a strategy that our immune system uses against many viruses.
Mon, 28 Jul 2014 15:40:32 EDT
Stress-tolerant tomato relative sequenced
The genome of Solanum pennellii, a wild relative of the domestic tomato, has been published by an international group of researchers. The new genome information may help breeders produce tastier, more stress-tolerant tomatoes.
Mon, 28 Jul 2014 15:39:41 EDT
Cell's recycling center implicated in division decisions
Most cells do not divide unless there is enough oxygen present to support their offspring, but certain cancer cells and other cell types circumvent this rule. Researchers have now identified a mechanism that overrides the cells' warning signals, enabling cancers to continue to divide even without a robust blood supply. In the process, the researchers found that lysosomes -- the cell's protein 'recycling centers' -- help govern cell division decisions.
Mon, 28 Jul 2014 15:36:38 EDT
Researchers produce record-length mirror-image protein
Biochemists have reported an advance in the production of functional mirror-image proteins. In a new study, they have chemically synthesized a record-length mirror-image protein and used this protein to demonstrate that a cellular chaperone, which helps "fold" large or complex proteins into their functional state, has a previously unappreciated talent -- the ability to fold mirror-image proteins. These findings will greatly facilitate mirror-image protein production for applications in drug discovery and synthetic biology.
Mon, 28 Jul 2014 11:33:57 EDT
How sweet it is: Bioenergy advanced by new tool
Researchers have developed a powerful new tool that can help advance the genetic engineering of 'fuel' crops for clean, green and renewable bioenergy -- an assay that enables scientists to identify and characterize the function of nucleotide sugar transporters, critical components in the biosynthesis of plant cell walls.
Mon, 28 Jul 2014 09:44:06 EDT
Mutations from Venus, mutations from Mars: Why genetic fertility problems can persist in a population
Researchers explain why genetic fertility problems can persist in a population. Some 15% of adults suffer from fertility problems, many of these due to genetic factors. This is something of a paradox: We might expect such genes, which reduce an individual's ability to reproduce, to disappear from the population. Research may now have solved this riddle. Not only can it explain the high rates of male fertility problems, it may open new avenues in understanding the causes of genetic diseases and their treatment.
Sun, 27 Jul 2014 16:57:00 EDT
New, noncommittal mechanism of drug resistance discovered
Microorganisms like bacteria and fungi can evade treatment by acquiring mutations in the genes targeted by antibiotics or antifungal drugs. These permanent mutations were once thought to be the only way for drug resistant strains to evolve. Now a new study has shown that microorganisms can use a temporary silencing of drug targets -- known as epimutations -- to gain the benefits of drug resistance without the commitment.
Fri, 25 Jul 2014 08:03:08 EDT
GSAD and Plant rDNA database: Two open platforms with plant cytogenetic information
Having cytogenetic information about plants is basic to classify species and promote new studies on agriculture and crop improvement. This is the main objective of two online platforms that collect chromosome information and provide it to the scientific community.
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