History classes would have had added flavour had we been told that our great explorers of the past travelled with their pigs. Originally descended from the Eurasian wild boar, present day pig populations in South America and Africa can pride themselves with adventurous ancestors. At the SEB meeting at the Universitat Autonoma de Barcelona, Oscar Ramírez from the Universitat Autonoma de Barcelona, will be presenting his work on the formation of European pig breeds and their subsequent dispersion in the New World and Africa through the process of colonization [session A1.12]. Using mitochondrial DNA analysis, Ramírez and coworkers confirmed that modern European pig breeds were domesticated from European wild boar populations. The European and Asian breeds were previously found to have crossbred during the 18-19th centuries, in order to accelerate maturation and fattening in the British breed.
Ramírez now suggests that the South American and African pig populations have descended from pigs brought in by the European colonizers several centuries ago. Peruvian Creole pigs show genetic similarities with Iberian pigs, which were brought in as food supplies by the Spaniards at the time of American colonization. In contrast, Nicaraguan Creole and Cuino mexican breeds are of Chinese origin. On the African continent, the Nigerian and Benin breeds have supposedly been imported by Portuguese settlers, while the Zimbabwean Mukota breed is believed to have been introduced by European and Chinese traders in the 16-17th centuries.
So, the establishment of pig populations indicates historical time points in human migration. All that remains is to do a taste test on our pork chops!
Diana van Gent | alfa
Newly designed molecule binds nitrogen
23.02.2018 | Julius-Maximilians-Universität Würzburg
Atomic Design by Water
23.02.2018 | Max-Planck-Institut für Eisenforschung GmbH
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
23.02.2018 | Physics and Astronomy
23.02.2018 | Health and Medicine
23.02.2018 | Physics and Astronomy