Approximately 10,000 years after the last mammoths used to roam across the North American and Eurasian spaces, they still remain an exciting subject of inquiry for researchers. Mammoths and elephants belong to the most ancient group of mammals, therefore, when studying mammoths the researchers reveal secrets of evolutionary origin of contemporary species. Discussions continue about genetic kinship of mammoths and contemporary elephants.
Now, Russian researchers working at several institutes of the Russian Academy of Sciences, Russian Academy of Medical Sciences and Lomonosov Moscow State University, as well as at Universities of Massachusetts and California managed to obtain independent proof this kinship. The researchers managed to reconstruct the most ancient (as of today) complete DNA sequence of mitochondrial genome received from remains of a mammoth that died about 33,000 years ago.
Professor Rogayev, Doctor of Biology, and his colleagues (from UMASS MS, Scientific Center of Mental Health, Russian Academy of Medical Sciences, Institute of General Genetics, Russian Academy of Sciences, Moscow State University, UCSD) published the article entitled “Complete mitochondrial genome and phylogeny of Pleistocene mammoth Mammuthus primigenius” on February 7 in the Plos Biology magazine, Public Library of Science (Plos), where they described the DNA sequence of 16,842 signs (16,842 pairs of nucleotides). This is a complete mitochondrial genome of a mammoth, whose remains had been extracted from the permafrost. The remains date back to the Pleistocene era – the period of time from 10,000 through 1.6-1.9 million years B.C. The investigations have showed that mammoths and Asia’s elephants are related species that drifted apart in the course of evolution soon after separation of their common ancestor from the line of African elephants.
Sergey Komarov | alfa
Cryo-electron microscopy achieves unprecedented resolution using new computational methods
24.03.2017 | DOE/Lawrence Berkeley National Laboratory
How cheetahs stay fit and healthy
24.03.2017 | Forschungsverbund Berlin e.V.
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
24.03.2017 | Materials Sciences
24.03.2017 | Physics and Astronomy
24.03.2017 | Physics and Astronomy