It had survived in a state of cryptobiosis.
“One can halt life and then start it from the beginning. This a major finding,” he noted.
“To see that the same biochemical pathway is used in a species which is 200, 300 million years away, that’s really striking,” toldPhilipp Schiffer, research group leader of the Institute of Zoology at the University of Cologne and one of the scientists involved in the study. “It means that some processes in evolution are deeply conserved.
At the time, researcher Anastasia Shatilovich revived two of the worms at the institute by simply rehydrating them with water. She then proceeded to take around 100 worms to labs in Germany for further analysis, by transporting them in her pocket.Radiocarbon analysis of the plant material in the samples indicated that the deposits had not been thawed since between 45,839 and 47,769 years ago, making the worms quite old.
Further genetic analysis conducted by scientists in Dresden and Cologne found that these worms belonged to a novel species, which researchers called Panagrolaimus kolymaenis. They discovered that the P. kolymaenis species shared with C. elegans “a molecular toolkit” that could allow both organisms to produce a sugar called trehalose that would allow them to survive freezing and dehydration.
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