A new single-celled organism could explain the evolution … – Ultimahora.com

EFE

Scientists at the department of cell and molecular biology and molecular evolution of the Uppsala University (Sweden) argue that the emergence of a new arch explains the existence of the gap between simple cell bodies complex.

Although life is characterized by great diversity, all organisms are classified into two groups around, remind researchers in their study.

The morphology prokaryotic organisms , which they include bacteria and archaea are composed of single cells without nuclei, whereas eukaryotic cell morphology with large core and a high degree of internal organization thanks, among others, to their cytoskeleton.

Both bodies are so different that the origin of eukaryotic organisms and their evolution from prokaryotic “remains one of the most controversial enigmas in modern biology” remind researchers.

Recent studies had already suggested that the domain of eukaryotes might have arisen from archaea, but so far had not been able to verify the existence of this specific form of “intermediate” simple life.

Scientists University of Uppsala, the researcher Thijs Ettema at the head, have identified this new bow in deep sea sediments, arguing that it could be the first prokaryotic organism known having a closer relationship with eukaryotic.

They called “Lokioarqueota” and has, say the experts, genes encoding proteins only found, for example, in parts of the cytoskeleton of eukaryotic organisms.

These genetic characteristics could have acted as a “kit home “for the primitive eukaryotic organisms, contributing to the increase in cellular complexity, typical feature of modern eukaryotic organisms.