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Current Ancient Dna News and Events, Ancient Dna News Articles.
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Researchers improve method to identify aquatic species using environmental DNA
Researchers from the University of Notre Dame have improved their method of tracking species by using the biological material those organisms leave behind known as environmental DNA (eDNA). (2017-07-20)
Molecular changes with age in normal breast tissue are linked to cancer-related changes
New research provides insight into how changes that occur with age may predispose breast tissue cells to becoming cancerous. (2017-07-20)
Researchers discover how CRISPR proteins find their target
In addition to the Cas9 protein that bacteria use to bind and snip DNA, bacteria have other Cas proteins that know where to insert that viral DNA into the CRISPR region to remember which viruses have attacked and mount a defense. (2017-07-20)
Scientists identify new epigenetic mechanism that switches off placental genes in mice
Working with mice, Harvard Medical School researchers have discovered a new regulatory mechanism for genomic imprinting, the process that silences one parent's gene so that only the other parent's gene is expressed in offspring. (2017-07-19)
Revealing particle separation
Traces of biomolecules such as DNA can be detected with a new 'dynamic' technique based on the observation of association and dissociation events of gold nanoparticles. (2017-07-18)
Pause to read the traffic sign: Regulation of DNA transcription in bacteria
The survival of the cell is -- apart from other important aspects -- a question of timing: Scientists of Goethe University together with colleagues from other universities have now identified the different parts of this mechanism and introduced a model of the process. (2017-07-18)
Ancient, massive asteroid impact could explain Martian geological mysteries
A colossal impact with a large asteroid early in Mars' history may have ripped off a chunk of the northern hemisphere and left behind a legacy of metallic elements in the planet's interior. (2017-07-18)
DNA tracking tool tips the scales for distinguishing invasive fish
Rather than conduct an aquatic roll call with nets to know which fish reside in a particular body of water, scientists can now use DNA fragments suspended in water to catalog invasive or native species. (2017-07-17)
New gene mutation associated with Fanconi anemia
Fanconi anemia is a rare genetic disease characterized by high cancer risk. (2017-07-14)
New limits to functional portion of human genome reported
An evolutionary biologist at the University of Houston has published new calculations that indicate no more than 25 percent of the human genome is functional. (2017-07-14)
Diet of the ancient people of Rapa Nui shows adaptation and resilience not 'ecocide'
Research by an international team, led by the University of Bristol, has shed new light on the fate of the ancient people of Rapa Nui (Easter Island). (2017-07-13)
Omics technologies for analysis of precious rare biosamples
Omics technologies such as proteomics have far-reaching applications in diagnostics and clinical medicine, ecology, integrative biology research and beyond. (2017-07-13)
Bakaletz Lab biofilm work published in Proceedings of the National Academy of Sciences
The laboratory of Lauren Bakaletz, PhD, director, Center for Microbial Pathogenesis and vice president of basic sciences, The Research Institute at Nationwide Children's, studied the biofilm construction capabilities of nontypeable Haemophilus influenzae (NTHI), a bacterium responsible for sinusitis, pneumonia, exacerbations of cystic fibrosis and COPD, bronchitis and ear infections. (2017-07-13)
New analysis of rare Argentinian rat unlocks origin of the largest mammalian genome
New biological information gleaned from the red vizcacha rat, a native species of Argentina, demonstrates how genomes can rapidly change in size. (2017-07-12)
First aid kit in some living organisms helps fix DNA after lengthy sun exposure
Sunburn in living organisms is caused by ultraviolet (UV) light from the sun damaging the DNA in the cells. (2017-07-12)
Scientists replay movie encoded in DNA
For the first time, a primitive movie has been encoded in -- and then played back from -- DNA in living cells. (2017-07-12)
Anti-CRIPSR protein reduces off-target cutting during genome editing
Hinting at a new approach to regulating gene editing in mammalian cells, a study by Jiyung Shin, Jennifer Doudna and colleagues reports that an inhibitor protein from a Listeria bacteriophage can block the Cas9 component of CRISPR-Cas9 from interacting with DNA. (2017-07-12)
Accessing DNA in the cell's powerhouse to treat disease
For the first time, a synthetic compound has been made that can bind to DNA in the cells' energy powerhouses, suppressing a gene associated with nerve and muscle disease. (2017-07-11)
Ancient Greek theaters used moveable stages more than 2,000 years ago
Theater has been loved by many people since classical times. (2017-07-11)
The fork in the road to DNA repair
Japanese researchers from Osaka University have uncovered a way in which our cells regulate the repair of broken DNA. (2017-07-11)
Nagoya forensic scientists recover human DNA from mosquitos
Nagoya University forensic scientists show that viable DNA samples can be taken from mosquito blood meal that has been digested for up to two days. (2017-07-10)
Study identifies new gene mutation associated with defective DNA repair and Fanconi anemia
Fanconi anemia is a rare genetic disease characterized by hematologic symptoms and high cancer risk. (2017-07-10)
A new molecular scissors act like a GPS to improve genome editing
Researchers from the University of Copenhagen (Denmark), led by the Spanish researcher Guillermo Montoya, have discovered how Cpf1, a new molecular scissors unzip and cleave DNA. (2017-07-06)
Powerful new technique can clone thousands of genes at once
Scientists at Johns Hopkins, Rutgers, the University of Trento in Italy, and Harvard Medical School report they have developed a new molecular technique called LASSO cloning, which can be used to isolate thousands of long DNA sequences at the same time, more than ever before possible. (2017-07-05)
DNA of early Neanderthal gives timeline for new modern human-related dispersal from Africa
Ancient mitochondrial DNA from the femur of an archaic European hominin is helping resolve the complicated relationship between modern humans and Neanderthals. (2017-07-04)
Mapping genes could improve cancer diagnosis
Large-scale changes to the structure of the genome are often seen in cancer cells. (2017-07-04)
Through fossil leaves, a step towards Jurassic Park
For the first time, researchers have succeeded in establishing the relationships between 200-million-year-old plants based on chemical fingerprints. (2017-07-04)
Decreasing height, increasing arthritis risk evolutionarily advantageous for humans
Early humans evolved to have shorter bones and an increased risk of osteoarthritis, a trade-off that may have helped them in colder climates, Stanford researchers say. (2017-07-03)
Utah is home to earliest use of a wild potato in North America
Researchers have discovered potato starch residues in the crevices of a 10,900-year-old stone tool in Escalante, Utah -- the earliest evidence of wild potato use in North America. (2017-07-03)
Beech trees native to Scotland after all, scientists discover
Beech trees should be considered native to Scotland -- despite a long-running debate over their national identity, researchers at the University of Stirling and Science and Advice for Scottish Agriculture report. (2017-07-03)
Low temperature increases risk of DNA damage from UV radiation
Ultraviolet (UV) radiation exposure can cause DNA damage and may be one of the contributing factors in the global amphibian extinction crisis. (2017-07-03)
Andalusian experts indicate new elements responsible for instability in chromosomes
The researchers state that RNA joins with DNA by chance or because of a disease, the structure of the chromatin, the protein envelope of the chromosomes is altered, causing breaks in the DNA. (2017-06-30)
One step closer to a DNA vaccine against dengue virus
In a new study, researchers inoculated mice with a new DNA vaccine candidate (pVAX1-D1ME) in order to evaluate its efficiency. (2017-06-29)
Genetic evidence from the South Caucasus region shows surprising long-term stability
The South Caucasus -- home to the countries of Georgia, Armenia, and Azerbaijan -- geographically links Europe and the Near East. (2017-06-29)
Newly identified small RNA fragments defend the genome when it's 'naked'
Today in Cell, a team from CSHL describes its discovery of what might be considered emergency replacements for the epigenetic 'sentries' that normally protect the genome from transposons and viruses. (2017-06-29)
Genetic 'fossils' reveal long-term viral partnerships in grass
Defective viruses incorporated into grass genomes may adapt to form partnerships with other genome-incorporated viruses in order to complete their life cycle, according to a new PLOS Pathogens study. (2017-06-29)
Ancient viral 'fossils' reveal evolutionary mechanisms
Studying DNA fragments left by ancient viruses in their host's genome has shown even non-autonomous viruses could prosper by helping each other. (2017-06-29)
Researchers ID new mechanism for keeping DNA protein in line
Electrostatic forces known as phosphate steering help guide the actions of an enzyme called FEN1 that is critical in DNA replication and repair, finds a new study led by Berkeley Lab researchers. (2017-06-29)
Ancient antiviral defense system could revolutionize a new class of RNA-based medicine
Medicinal payload could be delivered by engineered RNAs that can be controlled by a billion year-old 'genetic fossil' found in all cells. (2017-06-28)
How are long strands of DNA packed into tiny cells?
Scientists are a step closer to understanding how our DNA is squeezed into every cell in the body. (2017-06-28)
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