The proponents of intelligent design believe that chance and selection are too casual and slow to allow complex new properties to arise. In particular, they argue that the intermediate steps in shuffling the genes to make something new are likely to scramble the existing system and be bad for the organism ("half an eye is bad for you").
The work, directed by Mark Isalan, leader of the group Gene Network Engineering and Luis Serrano, coordinator of the research programme Systems Biology and leader of the group Design of Biological Systems, from the Centre for Genomic Regulation in Barcelona, Spain, will be published tomorrow in the prestigious magazine Nature.
Although it’s true that it seems incredible that organisms could be able to face extreme mutation processes and gene reorganization, Isalan et al. show just that. This work describes a new method that links information networks in the genome of the bacterium Escherichia coli that are not usually communicating with each other. Not only do most of the bacteria survive with the new transcription networks, but some gain new properties that allow them to do better than the original bacteria in extreme conditions. For example, some survive better at 50°C or have a longer lifespan after growing to maturity.
Organisms appear to have an innate capacity to allow evolution. This new and revolutionary methodology opens the door to a much more rapid evolution that offers multiple new phenotypes or properties.
This will have useful applications in biotechnology, for example in the production of biofuel from more efficient microorgansims. Ultimately, evolving cellular gene networks may allow the production of new properties in a wide variety of cells, with profound implications for human health.
Gloria Lligadas | alfa
Flavins keep a handy helper in their pocket
25.04.2018 | University of Freiburg
Complete skin regeneration system of fish unraveled
24.04.2018 | Tokyo Institute of Technology
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
25.04.2018 | Physics and Astronomy
25.04.2018 | Physics and Astronomy
25.04.2018 | Information Technology