Sunny days were best for saving ancient DNA


QUICK-SETTING resin preserves the DNA of ancient plants and animals better than resin that dries slowly, according to Scott Rogers of the State University of New York in Syracuse. So the ability to recover DNA trapped in amber may depend on whether or not the prehistoric Sun was shining. Rogers and his colleagues added pieces of fungi to resin from Douglas fir trees. The researchers found that the fungal DNA was well preserved in resin that dried quickly in sunshine, but was severely damaged in slow-drying resin that was kept in shade and immersed in water (Naturwissenschaften, vol 87,
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