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Noticiario genética

            

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Headline (Posted) Abstract
Dangerous pathogens use this sophisticated machinery to infect hosts (17 May 2019) A detailed new model of a bacterial secretion system provides directions for developing precisely targeted antibiotics.

Cell polarity: An aurora over the pole (17 May 2019) Recent research has identified the master switch that triggers the symmetry breaking process in the zygotes of the nematode worm, Caenorhabditis elegans.

Researchers unravel mechanisms that control cell size (17 May 2019) A multidisciplinary team has provided new insight into underlying mechanisms controlling the precise size of cells. The researchers found that 'the adder,' a function that guides cells to grow by a fixed size from birth to division, is controlled by specific proteins that accumulate to a threshold.

Owning a dog is influenced by our genetic make-up (17 May 2019) Scientists have studied the heritability of dog ownership using information from 35,035 twin pairs from the Swedish Twin Registry. The new study suggests that genetic variation explains more than half of the variation in dog ownership, implying that the choice of getting a dog is heavily influenced by an individual's genetic make-up.

Designing biological movement on the nanometer scale (16 May 2019) Synthetic proteins have now been created that can move in response to their environment in predictable and tunable ways. These proteins can use their movement to disrupt lipid membranes in cells. They show promise as tools for drug delivery, and might eventually rival the efficiency of virus vehicles, but without some of their drawbacks.

Mutation makes bulldogs and Norwich terriers more susceptible to breathing problems (16 May 2019) The discovery of a new mutation associated with breathing difficulties in popular dog breeds suggests that shortened skulls causing flat faces is not the only factor that contributes to the condition, but that swelling around the airways from edema may also play a role.

Human antibody reveals hidden vulnerability in influenza virus (16 May 2019)
The ever-changing 'head' of an influenza virus protein has an unexpected Achilles heel, report scientists. The team discovered the structure of a naturally occurring human antibody that recognizes and disrupts a portion of the hemagglutinin (HA) protein that the virus uses to enter and infect cells. The investigators determined that the antibody, F [+]


Key step in cell protein production (16 May 2019) Scientists have discovered how genes create proteins in research which could aid the development of treatments for human diseases.

Revision to common view on how retinal cells in mammals process light (16 May 2019) Scientists say that new experiments with mouse eye tissues strongly suggest that a longstanding 'textbook concept' about the way a mammal's retina processes light needs a rewrite.

Breakthrough technique for studying gene expression takes root in plants (16 May 2019)
An open-source RNA analysis platform has been successfully used on plant cells for the first time -- a breakthrough that could herald a new era of fundamental research and bolster efforts to engineer more efficient food and biofuel crops. The technology, called Drop-seq is a method for measuring the RNA present in individual cells, allowing scienti [+]


How egg cells choose their best powerhouses to pass on (15 May 2019) Developing egg cells conduct tests to select the healthiest of their energy-making machines to be passed to the next generation.

What artificial intelligence can teach us about proteins (15 May 2019)
Proteins are vital parts of all living organisms and perform essential tasks in our bodies. They build and repair tissues, supply components of the immune and hormone systems, regulate metabolism, and transmit signals. Researchers have now developed an intelligent neural network that can predict the functions of proteins in the human body. The team [+]


Chewing gums reveal the oldest Scandinavian human DNA (15 May 2019) The first humans who settled in Scandinavia more than 10,000 years ago left their DNA behind in ancient chewing gums, which are masticated lumps made from birch bark pitch.

Newly identified bacteria-killing protein needs vitamin A to work (14 May 2019) People who have inadequate vitamin A in their diets are more susceptible to skin infection, yet how that vitamin affects skin immunity has been unclear. New research sheds some light on that mystery by identifying a previously unknown bacteria-killing protein on the epidermis that requires the vitamin to work.

Rice blast fungus study sheds new light on virulence mechanisms of plant pathogenic fungi (14 May 2019) Researchers examined the fungal cell biology of rice blast fungus pathogenesis and recently published the first systematic and comprehensive report on the molecular mechanism of the actin-binding protein (MoAbp1) that plays a crucial role in the pathogenicity of the fungus.

How proteins help influenza A bind and slice its way to cells (14 May 2019) Researchers have provided new insight on how two proteins help influenza A virus particles fight their way to human cells.

Keeping things in proportion: Lem2 necessary for nuclear scaling (14 May 2019)
A research team has found that inner nuclear membrane protein Lem2, backed up by endoplasmic reticulum protein Lnp1, acts as a valve to control the flow of the membrane into and out of the nuclear envelope. The researchers showed that by controlling membrane flow, Lem2 forms part of a regulatory system responsible for nuclear scaling, maintaining a [+]


Dead zones in circadian clocks (14 May 2019)
Circadian clocks of organisms respond to light signals during night but do not respond in daytime. The time window where circadian clocks are insensitive to light signals is referred to as the 'dead zone'. Researchers have proposed a mechanism for the daytime dead zone. They report that saturation of a single biochemical reaction in the gene regula [+]


Human gut microbiome physiology can now be studied in vitro using Organ Chip technology (13 May 2019) A research team has developed an approach to co-culture a complex human gut microbiome in direct contact with intestinal tissue for at least five days using 'organ-on-a-chip' (Organ Chip) microfluidic culture technology.

Catch a virus by its tail (13 May 2019) Research uncovers key mechanism that allows some of the deadliest human RNA viruses to orchestrate the precise copying of the individual pieces of their viral genome and replicate. The findings identify new targets to inhibit viral replication and may inform the development of a novel class of antiviral drugs.

Tomato pan-genome makes bringing flavor back easier (13 May 2019) Do you find that most store-bought tomatoes don't have much flavor? Scientists may have spotlighted the solution by developing the tomato pan-genome, mapping almost 5,000 previously undocumented genes, including genes for flavor.

Turning off growth to make flowers grow (13 May 2019)
Researchers report the final epigenetic events that terminate stem cell growth for proper flower development. They show the series of steps the binding of the transcription factor KNUCKLES initiates to suppress the gene expression of WUSCHEL in Arabidopsis. The ability to control flower growth has implications on seed productivity and food technolo [+]


Understanding relationship break-ups to protect the reef (13 May 2019) Unravelling the secrets of the relationship between coral and the algae living inside it will help prevent coral bleaching, researchers believe. By using genomic data to look for genes that enhance resilience in the algae, researchers hope to help coral adapt to the environmental shifts created by climate change.

Research on repetitive worm behavior may have implications for understanding human disease (11 May 2019) Studying microscopic worms, scientists have identified a brain circuit that drives repetitive behavior -- providing potential clues for understanding some human psychiatric conditions.

New efficient way to engineer nanostructures mimicking natural immune response complexes (10 May 2019) Scientists yield novel method to engineer large multi-antibody-like nanostructures using DNA nanotechnology. The results demonstrate the potential for assembly of multiple proteins and also other materials to enhance properties of traditional therapies.

How whales defy the cancer odds: Good genes (10 May 2019) Scientists have studied potential cancer suppression mechanisms in cetaceans, the mammalian group that includes whales, dolphins and porpoises. Biologists picked apart the genome of the humpback whale, as well as the genomes of nine other cetaceans, in order to determine how their cancer defenses are so effective.

Peering into the past, scientists discover bacteria transformed a viral threat to survive (09 May 2019) A study reports the first known evidence of bacteria stealing genetic material from their own worst enemy, bacteriophages, and transforming it to survive.

How the dengue virus replicates in infected cells (09 May 2019) The nonstructural protein 1 (NS1) of the dengue virus interacts with another viral protein called NS4A-2K-4B to enable viral replication, according to a new study.

New type of highly sensitive vision discovered in deep-sea fish (09 May 2019) The deep sea is home to fish species that can detect various wavelengths of light in near-total darkness. Unlike other vertebrates, they have several genes for the light-sensitive photopigment rhodopsin, which likely enables these fish to detect bioluminescent signals from light-emitting organs.

Egg yolk precursor protein regulates mosquitoes' attraction to humans (09 May 2019) Feeding mosquitoes sugar makes them less attracted to humans, a response that is regulated by the protein vitellogenin, according to a new study.

Painting a fuller picture of how antibiotics kill (09 May 2019) Researchers have used machine-learning algorithms to discover a secondary mechanism that helps some antibiotics kill bacteria. This mechanism involves disrupting bacterial metabolism of nucleotides that the cells need to replicate their DNA.

Discovery of the photosensor for yellow-green light-driven photosynthesis in cyanobacteria (09 May 2019)
Cyanobacteria, a type of bacteria that performs photosynthesis, utilize a photosensor to maximize their light-harvesting capacity under different light environments. A joint research team found a new photosensor that regulates yellow-green light-harvesting antenna in cyanobacteria. Further analysis of the cyanobacterial genomes revealed that this p [+]


Location is everything for plant cell differentiation (09 May 2019)
During development, plant cell differentiation is guided by location rather than lineage. Now, researchers have shown that the accumulation and intracellular localization of regulatory protein ATML1, which controls the expression of genes associated with epidermal cell identity, are also critical for the differentiation of plant cells into an epide [+]


Innovative mechanobiology research expands understanding of cells (09 May 2019)
Researchers have developed a new technology that allows them to probe cell changes without disturbing the cell's physiology -- a major advancement that helps scientists look more closely at cell changes to solve human health problems, according to a new article. This technology, known as deformation microscopy, allows scientists to more accurately [+]


New avenues for improving modern wheat (08 May 2019)
Since the Agricultural Revolution about 12,000 years ago, humans have been selectively breeding plants with desirable traits such as high grain yield and disease resistance. Over time, Triticum aestivum, otherwise known as bread wheat, has emerged as one of the world's most important crops. Together with the growing human population and the changin [+]


The secrets of secretion: Isolating eucalyptus genes for oils, biofuel (08 May 2019) Close genetic analysis of 480 blue mallee eucalyptus plants provides clues to modify cultivars for greater yield, whether for essential oils or jet fuel.

Creating a global map of the protein shape universe (08 May 2019) Researchers have come up with a novel way to classify proteins and their shapes, which lays the foundation of how we understand protein structures and functions.

Surface protein editing in bacteria (07 May 2019) New research delves into an unknown cell circuit in bacteria that can lead to new targets for antibiotics.

Teaching CRISPR and antibiotic resistance to high school students (07 May 2019) A team has developed BioBits, a suite of hands-on educational kits that enable students to perform a range of biological experiments by adding water and simple reagents to freeze-dried cell-free reactions.

Trigger for directed cell motion (07 May 2019) Researchers have discovered that curvatures of cell membranes trigger a self-organizing system. As a result, cells can move in the same direction over a longer distance, forming search patterns.

 


  

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. 

 



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

 

 

 

Biological Sciences - Genetics: 390 journals. http://journalseek.net/cgi-bin/journalseek/journalsearch.cgi?field=category&query=bio.genet

Linked Journals (345)

 

   Non-Linked Journals (49)


GENES VETERANOS
Odiaba a los abuelos; la torturaban por ser madre soltera. En venganza, ella los culpó de que su hijo naciera con cara de anciano.

Burlón, el científico espetó: - ¿Serán viejos los cromosomas?

Lo expulsaron de la Academia por decisión del Concejo de veteranos.
- ¡Los cromosomas mutan pero no envejecen!-, dijeron los mayores, llenos de honra.

Cuento extraído de “Cuentos perversos de genética” de William R. Fadul.
Propuesta de Marta Rodríguez Cruz y Sara Aparicio

La replicación genética: una visión darwiniana
Contributed by Nerea Ramirez y Núria Prieto