A "new" view of evolution sans mutations

The hologenome: A new view of evolution 14 January 2013 by Carrie Arnold From issue 2899 of New Scientist magazine, page 30-34. [subscription required, but also found here]

Excerpt: “…Dodd … found that changing the diet of a fruit fly could alter the flies’ mating choices after just two generations.

“When I read this, I started jumping up and down,” Rosenberg said. “It had to be the microbes. I just knew it. Nothing else could explain such a rapid change.”

To prove this, Rosenberg got his PhD student Gil Sharon to try replicate Dodd’s results. Sure enough, after two generations, flies fed on molasses would no longer mate with flies on a regular starch. Next, Sharon gave the flies rifampicin to kill off their bacteria. Afterwards, starch flies happily copulated with molasses flies, showing that bacteria were indeed responsible (PNAS, vol 107, p 20051).”

My comment: Doesn’t this prove that speciation is nutrient chemical-dependent and pheromone-controlled? Is there any reason to believe that the molecular mechanisms involved are not epigenetically effected by nutrient chemicals and their metabolism to pheromones in every species on the planet?

See also: Bacteria can drive the evolution of new species Published online 1 November 2010 | Nature | doi:10.1038/news.2010.575

Note: It is not the bacteria that drive evolution of a new species, it is their metabolism of nutrient chemicals to species-specific pheromones that drives evolution. It is not random mutations, and never has been.  Is there a simpler “proof” that makes those who think that random mutations cause adaptive evolution appear even more ridiculous? If there were any evidence to suggest that random mutations caused adaptive evolution I could not have concluded that “Olfaction and odor receptors provide a clear evolutionary trail that can be followed from unicellular organisms to insects to humans.




About James V. Kohl 1308 Articles
James Vaughn Kohl was the first to accurately conceptualize human pheromones, and began presenting his findings to the scientific community in 1992. He continues to present to, and publish for, diverse scientific and lay audiences, while constantly monitoring the scientific presses for new information that is relevant to the development of his initial and ongoing conceptualization of human pheromones. Recently, Kohl integrated scientific evidence that pinpoints the evolved neurophysiological mechanism that links olfactory/pheromonal input to genes in hormone-secreting cells of tissue in a specific area of the brain that is primarily involved in the sensory integration of olfactory and visual input, and in the development of human sexual preferences. His award-winning 2007 article/book chapter on multisensory integration: The Mind’s Eyes: Human pheromones, neuroscience, and male sexual preferences followed an award winning 2001 publication: Human pheromones: integrating neuroendocrinology and ethology, which was coauthored by disinguished researchers from Vienna. Rarely do researchers win awards in multiple disciplines, but Kohl’s 2001 award was for neuroscience, and his 2007 “Reiss Theory” award was for social science. Kohl has worked as a medical laboratory scientist since 1974, and he has devoted more than twenty-five years to researching the relationship between the sense of smell and the development of human sexual preferences. Unlike many researchers who work with non-human subjects, medical laboratory scientists use the latest technology from many scientific disciplines to perform a variety of specialized diagnostic medical testing on people. James V. Kohl is certified with: * American Society for Clinical Pathology * American Medical Technologists James V. Kohl is a member of: * Society for Neuroscience * Society for Behavioral Neuroendocrinology * Association for Chemoreception Sciences * Society for the Scientific Study of Sexuality * International Society for Human Ethology * American Society for Clinical Laboratory Science * Mensa, the international high IQ society