Genetics

Genetics News -- ScienceDaily Genetics research. Read the latest news on plant and animal genetics from universities and research institutes around the world.

  • Picture perfect: Researchers gain clearest ever image of Ebola virus protein
    on October 17, 2018 at 6:09 pm

    Near-atomic resolution model of viral protein complex brings clearer understanding of the viral mechanics. […]

  • Sex or food? Decision-making in single-cell organisms
    on October 16, 2018 at 7:42 pm

    Unicellular diatoms are able to adapt their behavior to different external stimuli based on an evaluation of their own needs. In experiments, Seminavis robusta diatoms directed their orientation either towards nutrient sources or mating partners, depending on the degree of starvation and the need to mate. […]

  • A selfish gene makes mice into migrants
    on October 16, 2018 at 3:01 pm

    House mice carrying a specific selfish supergene move from one population to another much more frequently than their peers. This finding shows for the first time that a gene of this type can influence animal migratory behavior. It could help in dealing with invasive plagues transmitted by mice. […]

  • Virus-resistant pigs to vastly improve global animal health
    on October 15, 2018 at 5:29 pm

    Researchers have successfully produced a litter of pigs that are genetically resistant to Transmissible Gastroenteritis Virus (TGEV), which commonly infects the intestines of pigs and causes almost 100 percent mortality in young pigs. […]

  • Unravelling the genetics of fungal fratricide
    on October 15, 2018 at 3:35 pm

    Selfish genes are genes that are passed on to the next generation but confer no advantage on the individual as a whole, and may sometimes be harmful. Researchers have, for the first time, sequenced (or charted) two selfish genes in the fungus Neurospora intermedia that cause fungal spores to kill their siblings. Unexpectedly, the genes were not related to each other, perhaps indicating that selfish genes are more common than previously thought. […]

  • Cellular 'tuning mechanism' builds elegant eyes
    on October 15, 2018 at 2:45 pm

    Scientists discover a molecular 'brake' that helps control eye lens development in zebrafish. […]

  • The tightest non-aminoglycoside ligand for the bacterial ribosomal RNA A-site
    on October 15, 2018 at 2:45 pm

    A research group has made a significant discovery with positive implications for the development of bacteria-fighting drugs. The aminoacyl-tRNA site (A-site) of the 16S RNA decoding region in the bacterial ribosome looks promising for a new era of antibiotic drug development. […]

  • Artificial intelligence aids automatic monitoring of single molecules in cells
    on October 15, 2018 at 2:04 pm

    Researchers developed a system that can automatically image single molecules within living cells. This system employs learning via neural networks to focus appropriately on samples, search automatically for cells, image fluorescently labeled single molecules, and track their movements. With this system, the team achieved the automated determination of pharmacological parameters and quantitative characterization of the effects of ligands and inhibitors on a target, which has potentially profound implications for biological and medical sciences. […]

  • Cells' route in response to disease is not always straight
    on October 15, 2018 at 12:45 pm

    The steps cells take in response to challenges are more complex than previously thought, finds new research. The study investigates a system relevant to cancer, viral infection, and diabetes. […]

  • An RNA key that unlocks innate immunity
    on October 12, 2018 at 7:16 pm

    New research shows that a versatile RNA molecule may be a key player in human cells' frontline defenses against viruses. […]

  • Getting to the root of lavender's secrets
    on October 11, 2018 at 6:31 pm

    A team of researchers has identified the complete genetic makeup of the lavender plant, Lavandula angustifolia. […]

  • Mouse pups with same-sex parents born in China using stem cells and gene editing
    on October 11, 2018 at 6:31 pm

    Researchers were able to produce healthy mice with two mothers that went on to have normal offspring of their own. Mice from two dads were also born but only survived for a couple of days. The work looks at what makes it so challenging for animals of the same sex to produce offspring and suggests that some of these barriers can be overcome using stem cells and targeted gene editing. […]

  • Genetic Achilles heel hurts humans fighting hepatitis C
    on October 11, 2018 at 6:31 pm

    An antimicrobial signaling molecule called interferon lambda 4 has lower activity against the hepatitis C virus in the vast majority of humans compared with chimpanzees and African hunter-gatherer Pygmies, according to a new study. […]

  • Researchers modify CRISPR to reorganize genome
    on October 11, 2018 at 6:31 pm

    Researchers have reworked CRISPR-Cas9 gene-editing technology to manipulate the genome in three-dimensional space, allowing them to ferry genetic snippets to different locations in a cell's nucleus. […]

  • New route of acquiring antibiotic resistance in bacteria is the most potent one to date
    on October 11, 2018 at 6:31 pm

    For the first time in 60 years, researchers have discovered a new mechanism of genetic transduction, the process by which bacteriophages transfer bacterial DNA between bacteria. This new mechanism (lateral transduction) is the most powerful to date, able to transfer large DNA stretches at high frequencies. It likely plays a major role in bacterial evolution and acquisition of antibiotic resistance. […]

  • Scientists accidentally reprogram mature mouse GABA neurons into dopaminergic-like neurons
    on October 11, 2018 at 3:24 pm

    Attempting to make dopamine-producing neurons out of glial cells in mouse brains, a group of researchers instead converted mature inhibitory neurons into dopaminergic cells. Their findings reveal that -- contrary to previous belief -- it is possible to reprogram one mature neuron type into another without first reverting it to a stem-cell-like state. […]

  • Surfing on calcium waves: A larva's journey to becoming a fly
    on October 11, 2018 at 2:36 pm

    Researchers have uncovered the neuronal typeset that determines a larva's decision to pupariate, especially when challenged for nutrients. The group has investigated this question in fruit flies to understand how they integrate internal and environmental nutritional cues to make decisions on pupariation. […]

  • He's in a rush, she isn't: Reproductive strategy drives slower female aging
    on October 11, 2018 at 2:36 pm

    The aging of males and females is influenced by how they choose to invest their available energy, according to a study of fruit flies. The results support the idea that differences in strategy between the sexes to maximize the number of offspring contribute to differences in aging between males and females. […]

  • Functional salivary gland organoid created
    on October 11, 2018 at 1:05 pm

    Scientists have, for the first time, succeeded in growing three-dimensional salivary gland tissue that, when implanted into mice, produced saliva like normal glands. […]

  • A novel biosensor to advance diverse high-level production of microbial cell factories
    on October 11, 2018 at 1:05 pm

    A research group presented a novel biosensor which can produce diverse, high-level microbial cell factories. The biosensor monitors the concentration of products and even intermediates when new strains are being developed. This strategy provides a new platform for manufacturing diverse natural products from renewable resources. The team succeeded in creating four natural products of high-level pharmaceutical importance with this strategy. […]

  • Nutrients may reduce blood glucose levels
    on October 10, 2018 at 6:44 pm

    One amino acid, alanine, may produce a short-term lowering of glucose levels by altering energy metabolism in the cell. […]

  • Creating custom brains from the ground up
    on October 10, 2018 at 5:23 pm

    Scientists describe a new way to create customized mouse models for studying the brain. After killing off young brain cells, the developing forebrain can then be reconstituted from genetically engineered stem cells containing the specific genetic modifications desired for study. […]

  • How proteins meet on the cell membrane
    on October 10, 2018 at 4:39 pm

    At last, the researchers have defined the molecular basis of the cell membrane in integrin activation. […]

  • Blue roses could be coming soon to a garden near you
    on October 10, 2018 at 3:19 pm

    For centuries, gardeners have attempted to breed blue roses with no success. But now, thanks to modern biotechnology, the elusive blue rose may finally be attainable. Researchers have found a way to express pigment-producing enzymes from bacteria in the petals of a white rose, tinting the flowers blue. […]

  • Why shoals of fish flash silver
    on October 10, 2018 at 2:57 pm

    Scientists have helped to figure out why shoals of fish flash silver as they twist through the water by studying how the shiny silver cells are created in zebrafish. […]

  • A genome under influence
    on October 10, 2018 at 2:55 pm

    Researchers recently discovered that 95 percent of our genome seems to be affected by selection and other genetic biases and that markers previously thought to be neutral appear to provide skewed estimates. Their study calls for the re-examination of a plethora of results and provides the tools and recommendations to correct such issues in the future. […]

  • Ideal protein to help seniors rebuild lost muscle
    on October 9, 2018 at 5:59 pm

    While exercise buffs have long used protein supplements to gain muscle, new research suggests one protein source in particular, whey protein, is most effective for seniors struggling to rebuild muscle lost from inactivity associated with illness or long hospital stays. […]

  • Scientists go 'back to the future,' create flies with ancient genes to study evolution
    on October 9, 2018 at 5:59 pm

    Scientists have created fruit flies carrying reconstructed ancient genes to reveal how ancient mutations drove major evolutionary changes in embryonic development--the impact of which we see today. […]

  • Cleaning, but safely! Cocoons protect sensitive ant brood during toxic disinfection
    on October 9, 2018 at 3:50 pm

    Ants are neat: when they move into a new nest box, they spend the first days cleaning it thoroughly. Despite keeping the nest clean, using poison within the nest is dangerous and can kill unprotected brood. However, the silk cocoon that surrounds the ant's sensitive pupae protects them from any harmful effects. […]

  • Success is sweet: Researchers unlock the mysteries of the sugarcane genome
    on October 9, 2018 at 3:49 pm

    For centuries, sugarcane has supplied human societies with alcohol, biofuel, building and weaving materials, and the world's most relied-upon source of sugar. Now, researchers have extracted a sweet scientific prize from sugarcane: Its massive and complex genome sequence, which may lead to the development of hardier and more productive cultivars. […]