May 19th, 2006



Эукариоты и прокариоты: ну и кто кого породил?...

Many researchers think eukaryotes are the descendants of either bacteria or archaea, or some combination of the two. But genetic and protein evidence do not support this view....Instead, the data suggest that eukaryote cells with all their bells and whistles are probably as ancient as bacteria and archaea, and may have even appeared first, with bacteria and archaea appearing later as stripped-down versions of eukaryotes.

Science, May 2006:
Genomics and the Irreducible Nature of Eukaryote Cells

Here, we review recent data from proteomics and genome sequences suggesting that eukaryotes are a unique primordial lineage.

Genomics and proteomics have greatly increased our awareness of the uniqueness of eukaryote cells. This, together with increased understanding of molecular crowding, as well as the dynamic, often reductive nature of genome evolution, offers a new view of the origin of eukaryote cells. The eukaryotic CSSs define a unique cell type that cannot be deconstructed into features inherited directly from archaea and bacteria. Only a small fraction (15%) of -proteobacterial proteins are identified in the yeast and human mitochondrial proteomes; none seem to be direct descendants of archaea, and roughly half seem to be exclusively eukaryotic.

из серии 'блеск и нищета Comparative genomics'...имхо.

A.I./Swarm Int.

Searching for the soul in the machine

If computers could create a society, what kind of world would they make? Thanks to the work of an ambitious project that adds a whole new meaning to the phrase, ‘computer society’, in which millions of software agents will potentially evolve their own culture, we could be about to find out.

With funding from the European Commission’s Future and Emerging Technologies (FET) initiative of the IST programme, five European research institutes are collaborating on the NEW TIES project to create a thoroughly 21st-century brave new world – one populated by randomly generated software beings, capable of developing their own language and culture.

NEW TIES project
Mars Attack!