Scientists identify rare evolutionary intermediates to understand the origin of eukaryotes

(Molecular Biology and Evolution (Oxford University Press)) A new study provides a key insight into a milestone event in the early evolution of life on Earth -- the origin of the cell nucleus and complex cells. In a study led by Sergey Melnikov at Yale University, the team peered deep inside current living cells, known as Archaea - the organisms that are believed to most closely resemble the ancient intermediates between bacteria and the more complex cells that we now know as eukaryotic cells.

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