A team of Stanford University researchers led by Richard Myers, Ph.D., in collaboration with Chris Amemiya, Ph.D., of the Benaroya Research Institute in Seattle, campaign in the December issue of Genome Research for deciphering the genetic code of a "living fossil" fish, the coelacanth.
The genomic sequence of this large "hollow-spined" fish, which populates deep-sea volcanic caves, could hold valuable clues for biologists studying the evolution of vertebrate species. Coelacanths were believed to have been extinct until a live specimen was discovered in 1938 off the coast of South Africa. Both of the known coelacanth species that survive today, Latimeria chalumnae and Latimeria menadoensis, are anatomically similar to their fossil relatives. Furthermore, coelacanths have exhibited little morphological change since their emergence during the Devonian period approximately 360 million years ago.
To date, complete genomic sequences for more than 200 organisms have been obtained, and hundreds more are currently in progress (www.genomesonline.org). These efforts will enable scientists to perform detailed comparisons of the complete genetic codes from multiple species, identifying the sequence changes that contributed to evolutionary adaptation and speciation. Although a wide assortment of species have been chosen for sequencing, ranging from lampreys to armadillos (www.genome.gov/12511858), Myers observed: "Were missing an organism that could really shed light on the emergence of land vertebrates. We dont know what genomic changes accompanied the transition from water to land, and a coelacanth genome could help identify those events."
Maria A. Smit | EurekAlert!
Research team of the HAW Hamburg reanimated ancestral microbe from the depth of the earth
01.03.2017 | Hochschule für Angewandte Wissenschaften Hamburg
Researchers Imitate Molecular Crowding in Cells
01.03.2017 | Universität Basel
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.
On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...
In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
01.03.2017 | Health and Medicine
01.03.2017 | Physics and Astronomy
01.03.2017 | Life Sciences