MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY
Grape vine DNA research. Researcher at the University of Milan pouring liquid nitrogen onto a sample of the Grenache grape variety (Vitis sp.), so that its DNA may be extracted. This formed part of a study where the DNA from different vine samples was analysed to help determine the geographical origin of the vines. Genetic analyses from more than 500 sites revealed that vines do not only have one single origin, as was thought, but several origins around the circumference of the Mediterranean Basin.
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