Daring to Defy Darwin

“Indeed, we now know that the proportion of genetic sequences on earth that belongs to visible organisms is negligible. Furthermore, only 15% of the genetic sequences found in the samples from the environment and from feces analyzed in metagenomic studies belong to the three domains of microbes currently recognized in the tree-of-life framework – bacteria, archaea, and eukaryotes. Viruses contain another 15-30% of these genetic sequences.” This means that the majority of unidentified genetic sequences pose an unresolved problem. Where do they come from? New genes suddenly appear, called ORFans (“orphan genes”) without any precursors. They may be produced by gene duplication, or fusion, or some other unknown process. Yet, Darwin’s tree of life concept would make it impossible to consider such processes. The transfer of genetic sequences from parasites to hosts could involve hundreds of genes for bacteria or viruses. But, as Raoult writes, “the current classification of the domains of life is based on the ribosome – the production apparatus of proteins – which does not exist in these viruses.” Adherence to the dogmatism of Darwin thus prevents these new discoveries, that overturn his century-and-a-half old teachings, from ever reaching the new generation of scientists. Raoult concludes, "Genetic research, in particular, must be free to find new models to explain, and enhance, twenty-first-century scientific discovery. Today, Darwin’s theory of evolution is more a hindrance than a help, because it has become a quasi-theological creed that is preventing the benefits of improved research from being fully realized."