Genetics

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

  • Scientists to produce anti-cancer drugs in yeast
    on December 7, 2018 at 5:14 pm

    Nature is so complex that natural molecules used for i.e. cancer treatment still can't be produced by chemical synthesis. Today, major chemical and pharmaceutical companies harvest large amounts of rare plants and seeds in order to extract valuable substances. […]

  • Molecular insights into spider silk
    on December 7, 2018 at 4:27 pm

    Spider silk belongs to the toughest fibers in nature and has astounding properties. Scientists have now discovered new molecular details of self-assembly of a spider silk fiber protein. […]

  • Bacterial 'sleeper cells' evade antibiotics and weaken defence against infection
    on December 7, 2018 at 4:27 pm

    New research unravels how so-called bacterial persister cells manipulate our immune cells, potentially opening new avenues to finding ways of clearing these bacterial cells from the body, and stopping recurrence of the bacterial infection. […]

  • News about a plant hormone
    on December 7, 2018 at 4:27 pm

    The plant hormone jasmonic acid also performs a function that was previously unknown. It ensures that the leaf pores close when leaves are injured. For the plant, this could be an emergency signal. […]

  • Engineers repurpose wasp venom as an antibiotic drug
    on December 7, 2018 at 4:26 pm

    Engineers have repurposed wasp venom as an antibiotic drug that's nontoxic to human cells. […]

  • What can a snowflake teach us about how cancer spreads in the body?
    on December 6, 2018 at 6:56 pm

    What can seashells, lightning and the coastline of Britain teach us about new drugs for cancer? The answer, according to a team of researchers, may revolve around fractals, the infinitely complex patterns found in nature. […]

  • What sets primates apart from other mammals?
    on December 6, 2018 at 5:00 pm

    Researchers have discovered information about a gene that sets primates -- great apes and humans -- apart from other mammals, through the study of a rare developmental brain disorder. […]

  • Parrot genome analysis reveals insights into longevity, cognition
    on December 6, 2018 at 4:48 pm

    Parrots are famously talkative, and a blue-fronted Amazon parrot named Moises -- or at least its genome -- is telling scientists volumes about the longevity and highly developed cognitive abilities that give parrots so much in common with humans. Perhaps someday, it will also provide clues about how parrots learn to vocalize so well. […]

  • Small molecules come into focus
    on December 5, 2018 at 10:19 pm

    Many biologically important small molecules, like hormones and amino acids, are too small to be measured by conventional detection methods. Researchers have created a new type of immuno-assay that is capable of detecting small molecules with 50-fold greater sensitivity than conventional detection methods, and can be easily integrated into existing diagnostic platforms. […]

  • Memory B cells in the lung may be important for more effective influenza vaccinations
    on December 5, 2018 at 7:27 pm

    Using a mouse model of influenza and experiments that included parabiosis, researchers definitively showed that lung-resident memory B cells establish themselves in the lung soon after influenza infection. Those lung memory B cells responded more quickly to produce antibodies against influenza after a second infection, as compared to the response by the circulating memory B cells in lymphoid tissue, and establishment of the lung-resident memory B cells required a local antigen encounter in the lung. […]

  • Sea invertebrate sheds light on evolution of human blood, immune systems
    on December 5, 2018 at 6:41 pm

    Botryllus schlosseri, a marine invertebrate that lives in underwater colonies resembling fuzzy pinheads clinging to rocks, has a blood-forming system with uncanny similarities to that of humans, according to scientists. […]

  • A microbe's membrane helps it survive extreme environments
    on December 5, 2018 at 6:41 pm

    Within harsh environments like hot springs, volcanic craters and deep-sea hydrothermal vents -- uninhabitable by most life forms -- microscopic organisms are thriving. How? It's all in how they wrap themselves. […]

  • 30 years of experimental evolution results in a new sex chromosome
    on December 5, 2018 at 6:40 pm

    Researchers report new findings of an experimental evolutionary project that ran for 30 years on the genomic mechanisms of sex determination in swordtail fish. […]

  • Tuberculosis survives by using host system against itself, study finds
    on December 5, 2018 at 6:39 pm

    Scientists have discovered that the pathogen Mycobacterium tuberculosis (MTB) releases RNA into infected cells. […]

  • Enhancing our vision of the past
    on December 5, 2018 at 2:38 pm

    Scientists have advanced our understanding of how ancient animals saw the world by combining the study of fossils and genetics. […]

  • A bacterial protein is found to promote cancer
    on December 4, 2018 at 8:51 pm

    Researchers have discovered that DnaK, a protein of the bacterium mycoplasma, interferes with the mycoplasma-infected cell's ability to respond to and repair DNA damage, a known origin of cancer. […]

  • Inactivating genes can boost crop genetic diversity
    on December 4, 2018 at 6:11 pm

    Researchers recently showed that inactivating a gene, RECQ4, leads to a three-fold increase in recombination in crops such as rice, pea and tomato. The discovery could speed up plant breeding and development of varieties better suited to specific environmental conditions. […]

  • Novel approach improves understanding of the formation of new neurons in the mammalian adult brain
    on December 4, 2018 at 6:10 pm

    A team of researchers has developed a powerful new approach to understand the formation of new neurons in the mammalian adult brain. […]

  • Dynamics of chromatin during organ and tissue regeneration
    on December 4, 2018 at 3:25 pm

    The researchers, who conducted the analysis with Drosphila melanogaster, discovered a group of genes involved in regeneration and which are kept in different species. […]

  • New technique to identify phloem cells aids in the fight against citrus greening
    on December 4, 2018 at 2:03 pm

    Phloem diseases, including the economically devastating citrus greening, are particularly difficult to study because phloem cells -- essential for plant nutrient transport -- are difficult to access and isolate. Researchers have developed a technique to identify phloem cells using fluorescent microscopy and organelle-specific dyes that is applicable in a variety of phloem diseases across a range of species. […]

  • Life has a new ingredient
    on December 3, 2018 at 8:04 pm

    Our prehistoric Earth, bombarded with asteroids and lightening, rife with bubbling geothermal pools, may not seem hospitable today. But somewhere in the chemical chaos of our early planet, life did form. How? For decades, scientists have created miniature replicas of infant Earth in the lab in order to hunt for life's essential ingredients. Now, one of those replicas points to a possible new ingredient in the world's first RNA. […]

  • Plant cells inherit knowledge of where's up and where's down from mother cell
    on December 3, 2018 at 6:11 pm

    Knowing which way is up and which way is down is important for all living beings. For plants, which grow roots into the soil and flowers above ground, getting this polarization wrong would cause a whole host of problems. How polarity is reestablished after cell division was unknown -- until now. […]

  • A new approach to studying the flu
    on December 3, 2018 at 4:54 pm

    A clever repurposing of a biological tool gives researchers new clues as to how the flu remains so successful. […]

  • First jellyfish genome reveals ancient beginnings of complex body plan
    on December 3, 2018 at 4:54 pm

    The first in-depth look at the genome of a jellyfish -- the moon jelly Aurelia aurita -- shows that early jellyfish recycled existing genes to gain the ability to morph from polyp to medusa. […]

  • In death, Lonesome George reveals why giant tortoises live so long
    on December 3, 2018 at 4:54 pm

    Genetic analysis of DNA from Lonesome George and samples from other giant tortoises of the Galapagos -- which can live more than 100 years in captivity -- found they possessed a number of gene variants linked to DNA repair, immune response, and cancer suppression not possessed by shorter-lived vertebrates. […]

  • Nanoscale tweezers can perform single-molecule 'biopsies' on individual cells
    on December 3, 2018 at 4:15 pm

    Using electrical impulses, the 'tweezers' can extract single DNA, proteins and organelles from living cells without destroying them. […]

  • Not in the DNA: Epigenetics discovered in single-celled archaea
    on December 3, 2018 at 3:14 pm

    Researchers have reported the first experimental evidence of epigenetics in the single-celled organisms known as archaea. The simplicity of archaea -- combined with the fact that their cells resemble eukaryotes' in some important ways -- may allow researchers to investigate epigenetic questions in humans much faster and more easily than was possible before, the authors say. […]

  • Light-induced changes in photosensory proteins
    on December 3, 2018 at 3:14 pm

    Researchers have been able to demonstrate how, on a molecular level, a specific protein allows light signals to be converted into cellular information. Their findings have broadened our understanding of the way how plants and bacteria adapt to changes in light conditions, which regulate essential processes, such as photosynthesis. […]

  • Researchers alleviate Schizophrenia symptoms in new mouse models
    on November 30, 2018 at 5:04 pm

    Does all the tinkering in young mice hamper their brain development, causing schizophrenia-like symptoms? Or, do their brain cells develop normally, but in adulthood struggle to communicate? Researchers need to know whether to focus their efforts on brain cell development or communication, or both, because the answer to these questions implies different therapeutic approaches. […]

  • New research questions fish stocking obligations
    on November 30, 2018 at 4:16 pm

    Fish stocking as a fisheries compensation method in hydropower operations no longer meets latest legal and scientific requirements, according to a new study. The study focuses on ecological flows from the viewpoints of law and biology. […]