preprints.org > life sciences > molecular biology > doi: 10.20944/preprints201701.0016.v1

Preprint Hypothesis Version 1 This version is not peer-reviewed

Version 1 : Received: 4 January 2017 / Approved: 4 January 2017 / Online: 4 January 2017 (07:34:07 CET)

Currently there is little doubt left on the symbiogenetic nature of eukaryotes - genomes of archaeon and bacterium participated in shaping a genome of last eukaryotic common ancestor in equal albeit asymmetric manner, while a merger event itself indicated the advent of a new domain of life. The “symbiogenetic” framework of interaction of two partners is proposed, outlining similar steps essential for three major advents: the origin of life, the origin of complex life and the origin of humans. Given the immense importance of proper energy source for the evolution of life it seems plausible that for any principal increase in complexity, a partnership with a novel energy donor is required. Moreover, a “language” elaborated in the course of communication of partners might have been a prerequisite for a subsequent increase in complexity. Transitions, which led to RNA-protein world, eukaryotes and human brain, resulted in advent of complex languages via communication onsets between two entities in close partnership. Accordingly this further facilitated formation of first cells, multicellular organisms and human society.

symbiogenesis; eukaryogenesis; RNA world; expensive brain; human evolution; hydrothermal vent