imprimir | pdf             intranet                                                                                                            

Noticiario genética


 Science Daily:
Genetics News

Genetics News
Recent Headlines

Headline (Posted) Abstract
Biologists identify honeybee 'clean' genes known for improving survival (15 Feb 2019) The key to breeding disease-resistant honeybees could lie in a group of genes -- known for controlling hygienic behavior -- that enable colonies to limit the spread of harmful mites and bacteria, according to genomics research. The researchers narrowed in on the 'clean' genes known to improve the colony's chance of survival.

'Seeing' tails help sea snakes avoid predators (15 Feb 2019) New research has revealed the fascinating adaptation of some Australian sea snakes that helps protect their vulnerable paddle-shaped tails from predators.

Surprise findings turn up the temperature on the study of vernalization (15 Feb 2019) Researchers have uncovered new evidence about the agriculturally important process of vernalization in a development that could help farmers deal with financially damaging weather fluctuations.

New live-imaging technique reveals cellular repair crew plugging leaky biological barrier (15 Feb 2019) Suppose you live in a brick house and notice cracks in the mortar that let in cold air, rain and insect pests. You might call a brick mason to repair those leaks and to restore the barrier that keeps the great outdoors from getting inside.

New molecular blueprint advances our understanding of photosynthesis (14 Feb 2019)
Researchers have used one of the most advanced microscopes in the world to reveal the structure of a large protein complex crucial to photosynthesis, the process by which plants convert sunlight into cellular energy. The finding will allow scientists to explore for the first time how the complex functions, and could have implications for the produc [+]

Improved RNA data visualization method gets to the bigger picture faster (14 Feb 2019)
Like going from a pinhole camera to a Polaroid, a significant mathematical update to the formula for a popular bioinformatics data visualization method will allow researchers to develop snapshots of single-cell gene expression not only several times faster but also at much higher-resolution. This innovation by mathematicians will reduce the renderi [+]

Study examines how compound damaged DNA to understand its connection to cancer (14 Feb 2019) In an effort to understand how colibactin, a compound produced by certain strains of E. coli, may be connected to the development of colorectal cancer, researchers are exploring how the compound damages DNA to produce DNA adducts.

Animal venoms are sources in the search for new medicines (14 Feb 2019) A new study of natural toxins and their derivatives may help in the development of medicines to treat diseases like cancer and osteoarthritis.

How proteins become embedded in a cell membrane (14 Feb 2019) Many proteins with important biological functions are embedded in a biomembrane in the cells of humans and other living organisms. But how do they get in there in the first place? Researchers have now investigated the matter.

Cryofixation and electron tomography reveals novel compartment in arbuscular mycorrhiza (13 Feb 2019)
The importance of the mycorrhizal symbiosis to plant growth has led to a large body of research into their formation and function, yet there are critical unanswered questions. Scientists have discovered a previously unknown compartment within these symbiotic cortical root cells that could be important for nutrient exchange and molecular communicati [+]

Uncovering the evolution of the brain (12 Feb 2019)
What makes us human, and where does this mysterious property of 'humanness' come from? Humans are genetically similar to chimpanzees and bonobos, yet there exist obvious behavioral and cognitive differences. Now, researchers have developed a strategy to more easily study the early development of human neurons compared with the neurons of nonhuman p [+]

How well can H7N9 and H5N8 genetically mix with a seasonal strain? (12 Feb 2019) Emory scientists have been probing the RNA packaging factors that limit reassortment between avian H7N9/H5N8 strains and a well-known strain (H3N2) that has been dominating the last few human flu seasons in the United States. Mix and match still occurred at a low level, particularly with H5N8.

Why too much DNA repair can injure tissue (12 Feb 2019) Researchers have discovered how overactive DNA repair systems can lead to retinal damage and blindness in mice. A DNA repair enzyme called Aag glycosylase becomes hyperactive, provoking an inflammatory response that produces necrosis, leading to severe tissue damage.

Infection biology: What makes Helicobacter so adaptable? (12 Feb 2019) The bacterial pathogen Helicobacter pylori owes its worldwide distribution to its genetic adaptability. Microbiologists have identified an enzyme that plays a vital role in the flexible control of global gene expression in the species.

Once seen as nerve cells' foot soldier, the axon emerges as decision-maker (12 Feb 2019) New research reveals that parts of the neuron are far more complex than once thought.

Cancer comparison across species highlights new drug targets (12 Feb 2019)
Cancer genes in mucosal melanoma, a rare and poorly understood subtype of melanoma, have been compared in humans, dogs and horses for the first time. Researchers sequenced the genomes of the same cancer across different species to pinpoint key cancer genes. The results give insights into how cancer evolves across the tree of life and could guide th [+]

The physical forces of cells in action (12 Feb 2019)
The detection of physical forces is one of the most complex challenges facing science. Considered to play a decisive role in many biological processes, the chemical tools to visualize the physical forces in action do not exist. But today, researchers have developed probes inspired by lobster cooking, they enable to enter into cells. For the first t [+]

Engineered miniature kidneys come of age (11 Feb 2019)
A research team has now removed a major barrier for the use of kidney organoids as a tool to model kidney diseases, test drug toxicities and eventually for the creation of organ replacements, the lack of a pervasive blood vessel system (vasculature). The team solved this problem with a powerful new approach that exposes stem cell-derived kidney org [+]

Acoustic waves can monitor stiffness of living cells (11 Feb 2019) Engineers have devised a new, non-invasive way to monitor the stiffness of single living cells, using acoustic waves. Their technique could be used to study many biological phenomena, such as cell division, programmed cell death or metastasis.

Genome scientists develop novel approaches to studying widespread form of malaria (08 Feb 2019) Scientists have developed a novel way with genome sequences to study and better understand transmission, treat and ultimately eradicate Plasmodium vivax, the most widespread form of malaria.

Fluconazole makes fungi sexually active (08 Feb 2019) Under the influence of the drug fluconazole, the fungus Candida albicans can change its mode of reproduction and thus become even more resistant, scientists report.

Scientists discover genes that help harmful bacteria thwart treatment (08 Feb 2019)
A team has discovered two genes that make some strains of harmful Staphyloccocus bacteria resistant to treatment by copper, a potent and frequently used antibacterial agent. The discovery shows that Staphyloccocus aureus can acquire additional genes that promote infections and antibacterial resistance and may open new paths for the development of a [+]

Cryo-force spectroscopy reveals the mechanical properties of DNA components (08 Feb 2019) Physicists have developed a new method to examine the elasticity and binding properties of DNA molecules on a surface at extremely low temperatures. With a combination of cryo-force spectroscopy and computer simulations, they were able to show that DNA molecules behave like a chain of small coil springs.

New technique pinpoints milestones in the evolution of bacteria (07 Feb 2019) Scientists have devised a reliable way to determine when certain groups of bacteria appeared in the evolutionary record. The technique could be used to identify when significant changes occurred in the evolution of bacteria, and to reveal details about the primitive environments that drove such changes in the first place.

Bee dispersal ability may influence conservation measures (07 Feb 2019) The abilities of various bee species to disperse influences the pattern of their population's genetic structure, which, in turn, can constrain how they respond to environmental change, researchers report.

Butterflies are genetically wired to choose a mate that looks just like them (07 Feb 2019) Male butterflies have genes which give them a sexual preference for a partner with a similar appearance to themselves, according to new research. Researchers observed the courtship rituals and sequenced the DNA from nearly 300 butterflies to find out how much of the genome was responsible for their mating behavior.

Biologists answer fundamental question about cell size (07 Feb 2019) Biologists have discovered why cell sizes are so tightly regulated. Researchers found that the need to produce just the right amount of protein is behind the striking uniformity of sizes.

Scientists generate functional, transplantable B cells from mice (07 Feb 2019) Functional B-1 cells derived from mouse embryonic stem cells are capable of long-term engraftment and secrete natural antibodies after transplantation in mice, researchers report. Scientists are interested in B-1 cells generated from pluripotent stem cells because they could be tested as a therapeutic for a broad range of immunological disorders.

The novel method Nested CRISPR enables efficient genome editing using long DNA fragments (07 Feb 2019) Researchers used the model organism Caenorhabditis elegans to optimize a new technique, leading to the development of the method called Nested CRISPR. This cloning-free method involves the insertion of long DNA fragments in two steps.

Finding chemicals inside a cell (07 Feb 2019)
How are chemicals distributed in a cell? Scientists have developed a combined mass spectrometry and biological imaging device that enables direct, label-free detection, and high-resolution mapping of chemicals inside a biological cell. The distribution and accumulation of the disinfectant proflavine around the cell organelles could be visualized di [+]

Evolution: Larger datasets unravel deep roots (07 Feb 2019) Comparative genome content analyses provide insight into the early evolution of animals. A novel method that permits the use of larger datasets in such studies yields results that are consistent with classical views of animal phylogeny.

How microbes produce key compound used to fight cancer (06 Feb 2019) Researchers have untangled how bacteria found in soil are able to manufacture streptozotocin, showing for the first time that the compound is produced through an enzymatic pathway and revealing the novel chemistry that drives the process.

Research explains how snakes lost their limbs (06 Feb 2019) The study is part of an effort to understand how changes in the genome lead to changes in phenotypes.

See-through fish aid scientists in autism-related breakthrough (06 Feb 2019) Researchers have discovered a clue in the humble zebrafish's digestive tract that, one day, could help people on the autism spectrum alleviate one of the most common yet least studied symptoms of their disorder: gastrointestinal distress.

Hibernating hamsters could provide new clues to Alzheimer's disease (06 Feb 2019)
Syrian hamsters are golden-haired rodents often kept as house pets. Cold and darkness can cause the animals to hibernate for three to four days at a time, interspersed with short periods of activity. Surprisingly, the hibernation spurts of these cute, furry creatures could hold clues to better treatments for Alzheimer's disease (AD), according to a [+]

Cannabinoid compounds may inhibit growth of colon cancer cells (06 Feb 2019) Medical marijuana has gained attention in recent years for its potential to relieve pain and short-term anxiety and depression. Now, researchers say some cannabinoid compounds may actually inhibit the growth of colon cancer cells in the lab.

New anti-CRISPR proteins discovered in soil and human gut (05 Feb 2019) Scientists have found four new anti-CRISPR proteins that are distributed across different environments. The new study suggests that some anti-CRISPR proteins are more widespread in nature than previously anticipated. These anti-CRISPRs can potentially be used to regulate the activity of CRISPR-Cas9 systems better in the future.

Catching flies with vinegar (05 Feb 2019) Taste is so familiar a sensation that you might think scientists had long ago sorted out how the sense works. Yet such research is far from settled.

Time-lapse microscopy helps reveal brake mechanism in Streptomyces lifecycle (05 Feb 2019) Streptomyces are soil-dwelling bacteria that produce approximately two-thirds of the antibiotics in current clinical use.

HIV-1 protein suppresses immune response more broadly than thought (05 Feb 2019) Scientists have revealed how a protein produced by HIV-1 plays a broader role in suppressing the immune system's response to infection than previously thought.



Noticias sobre Genética | EL PAÍS


Genética cotidiana (Prof. José Luis Micol Molina) 

Selección de noticias sobre genética aparecida en medios de comunicación español, y se añade un breve comentario. Se incluye un enlace a la noticia en español y cuando es posible, otro al artículo científico original en inglés. (Prof. José Luis Micol Molina, Catedrático de Genética, Universidad Miguel Hernández)


Blog Genes, genomas y otras genialidades (Prof. Ana Aguirre) Universidad del País Vasco

Este blog surge del interés de la autora por la formación de los estudiantes de Grado y de posgrado del ámbito de las Biociencias. Está concebido como un complemento formativo e informativo para estudiantes universitarios y para cualquier persona interesada por conocer de cerca los avances que suceden en el campo de la Genética, de la Biología Molecular y de otras áreas afines. 


Latest articles from Genetics (from Nature Journals)

Inicio | La ciencia Genética | Conceptos básicos | Guía docente | I: Introducción | II: Mendelismo | III: Recombinación | IV: Genética Cuantitativa | V: DNA y mutación | VI: Genética Poblaciones | Seminarios | Prácticas | Aula permanente | Trabajos estudiantes | Evaluación continua | Tutoría | Glosario | Frases y citas | Enlaces de interés | Noticiario genética | Buzón de sugerencias | 

Curso de Genética - Grado Genética de la UAB
Plataforma Web 2.0 para la docencia universitaria
Prof. Antonio Barbadilla





Biological Sciences - Genetics: 394 journals.

Linked Journals (345)


   Non-Linked Journals (49)

Nuestra capacidad de leer esta secuencia de nuestro genoma tiene todos los ingredientes de una paradoja filosófica. ¿Puede un ser inteligente comprender las instrucciones para hacerse a sí mismo?

John Sulston
Contributed by Amaiur Mendizabal Bengoa