The mathematical algorithm jointly developed by EURAC and the University of Bolzano (unibz) now permits exceptionally rapid recognition of regular DNA sequences: the previously required time of 20 days is reduced to just 5 hours under the new method.
Its efficiency and methodological rigour has now led the algorithm to be incorporated in the world’s most widely-used DNA-analysis software. This momentous scientific breakthrough is the work of Daniel Taliun: today at the faculty of Computer Science of the Free University of Bolzano he discussed his doctoral thesis in information technology, completed at the EURAC Center for Biomedicine.
DNA is made up of 3 billion bases, or letters, with the sequence formed of stable segments interspersed with breakpoints. Stable segments are inherited as a single block, while the breaks allow successive sequences to recombine in new ways, ensuring genetic variation between people.
The rapid recognition of regular sequences is of great value as it allows for much more straightforward representation of DNA and for greater precision and speed in identifying those areas of DNA associated with disease. The method developed by Daniel Taliun at the EURAC’s Center for Biomedicine and University of Bolzano is of great assistance in this field; the new algorithm processes the entire DNA in 1% of the time previously required, down from 20 days to just 5 hours.
“The results caught the attention of the leaders of PLINK, the most widely-used software at global level for genetic data analysis, who asked us if they could integrate our algorithm into their program,” explains Cristian Pattaro, head of the biostatistics group at EURAC’s Center for Biomedicine and the research group’s specialist on aspects related to genetics and biostatistics.
“This project combines mathematics with information technology and genetics and has merged the skill sets of two organisations. The University of Bolzano and EURAC have applied their areas of specialisation to achieve a level of excellence that has seen us both working outside of our usual fields of research,” says Johann Gamper, professor at the Faculty of Computer Science of the University of Bolzano and supervisor of Daniel’s PhD course.
The new algorithm can be applied both in the analysis of the genetic causes of disease and in population genetics. In disease analysis, the recognition of regular DNA segments allows for greater precision in the search for genetic variations associated with illness in that it allows the examination to be narrowed down to a smaller segment.
In population genetics, on the other hand, the recognition of a succession of regular sequences and breakpoints provides information on the study of background genetics, as we have seen that these successions are relatively stable within a single population but may alter between differing populations.
Daniel Taliun returned to Bolzano from the United States for his doctoral viva. “The results of the research have achieved great resonance internationally, and this has led me to obtain a post as researcher at the Department of Biostatistics of the University of Michigan, one of the world’s leading centres,” concludes Daniel – now Doctor – Taliun who, in developing his algorithm, formulated and demonstrated new mathematical theorems.
Stefanie Gius | idw - Informationsdienst Wissenschaft
Blood test shows promise for early detection of severe lung-transplant rejection
23.01.2019 | NIH/National Heart, Lung and Blood Institute
Evolution of signaling molecules opens door to new sepsis therapy approaches
23.01.2019 | Technische Universität München
So-called bifacial stem cells are responsible for one of the most critical growth processes on Earth – the formation of wood.
Immune cells called macrophages are supposed to serve and protect, but cancer has found ways to put them to sleep. Now researchers at the Abramson Cancer...
The scientific and political community alike stress the importance of German Antarctic research
Joint Press Release from the BMBF and AWI
The Antarctic is a frigid continent south of the Antarctic Circle, where researchers are the only inhabitants. Despite the hostile conditions, here the Alfred...
World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles
The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.
Dead and alive at the same time? Researchers at the Max Planck Institute of Quantum Optics have implemented Erwin Schrödinger’s paradoxical gedanken experiment employing an entangled atom-light state.
In 1935 Erwin Schrödinger formulated a thought experiment designed to capture the paradoxical nature of quantum physics. The crucial element of this gedanken...
16.01.2019 | Event News
14.01.2019 | Event News
12.12.2018 | Event News
23.01.2019 | Physics and Astronomy
23.01.2019 | Materials Sciences
23.01.2019 | Life Sciences