Back in 2001, I proposed that the original cells, used to seed this planet, contained the ability to form “viretes.” The basic idea is that the virete would function something like a gamete, but instead of transmitting genetic information across time to future generations, it would transmit genetic information across space to facilitate the survival of the founding group (see my discussion on cross-talk ) by connecting them. Here is how I put it back in 2001:
Actually, I have been toying with the idea that viruses were designed (keeping in mind that I view viruses as non-living, life-dependent phenomena and not organisms). I would speculate that viruses were originally designed to allow the designed cells to cross-talk extensively. More specifically, I envision cells designed with the program to disperse part of their genetic constitution laterally through a life-cycle-like stage that involved replicating and packaging genetic material for dispersal. In short, I speculate that what we now know as ‘viruses’ were originally a designed sex-like mechanism for unicellular organisms, important for establishing a foothold on a sterile planet (I call them viretes). Possible expressions of this mechanism might include:
a. A cell suicide program coupled to the packaging of genetic material for dispersal.
b. An endospore-like program, where instead of forming a spore around the replicated DNA, the DNA is packaged in virus heads which in turn are packaged into a “release” cell.
c. Controlled exocytotic release.
I would further speculate that such sex-like mechanisms may have been important in the early stages of the designed founder effect allowing the heterogeneous cells to adjust, as a consortium, to an unfriendly environment. During this adjustment phase (analogous to the latent phase in a bacteria growth curve), the cells shuffled their material and hit upon global-adaptive state whereby the importance of such transfer was decreased. We still see “rusty remnants” of this state carried on by the vestiges of transposons, natural transformation, and yes, viruses.
Well, almost 10 years later, it’s looking like I was on to something: