social environment

Losers: rediscovering an epigenetic key

Epigenetic mechanisms modulate differences in Drosophila foraging behavior Little is known about how genetic variation and epigenetic marks interact to shape differences in behavior. Reported as: An epigenetic key to unlock behavior change October 16, 2017 “One of the big questions in the Child & Brain Development program over the years has been how experience gets embedded in our biology and the mechanisms for that,” says Sokolowski. See for comparison: See Brain on stress: How the social environment gets under…

Read More

Sexual communication signals: New Insights!

Nobody wants to belong to the party of losers. One of the best strategies in such a case is evidently an interpretation of the change as a gradual accumulation of knowledge while their work has always been at the cutting edge. — Kalevi Kull New insights in the evolution of sexual communication signals Abstract excerpt: Our research focuses on identifying a) the genes underlying sexual signals and responses in both sexes2-4, and b) ecological factors that may cause divergence in…

Read More

Quantum physics, Patrick Bateson, and neo-Darwinian nonsense

Sir Patrick Bateson: Zoologists Should Not ‘Hog’ Upcoming Royal Society Evolution Meeting I’m not sure we’re going to be talking about a completely new set of ideas, a lot have been around for a while. Frankly, I think some evolutionary biologists have not shed their neo-Darwinist clothing. Patrick Bateson, a leader in the field of animal behavior for many decades from Cambridge University, died just a few weeks ago at age 79. See https://en.wikipedia.org/wiki/Patrick_Bateson. I do not know if he ever…

Read More

Energy-dependent epigenetic translation to mRNA stability (3)

Energy-dependent epigenetic translation to mRNA stability (2) Energy-dependent epigenetic translation to mRNA stability (2) See for comparison this treatise on climate change packaged as information on the evolution of a flying snake. Fossil ‘winged serpent’ is a new species of ancient snake At the time that Zilantophis dwelled there, the site was a sinkhole surrounded by forest, attracting a variety of animals. The local fauna included ancient representatives of familiar North American creatures such as bears, beavers and salamanders. Others…

Read More

Creating gravity, nucleic acids, receptors, and supercoiled DNA (2)

See also: Creating gravity, nucleic acids, receptors, and supercoiled DNA Scientists make first direct detection of gravitational waves Excerpt: Almost 100 years ago today, Albert Einstein predicted the existence of gravitational waves — ripples in the fabric of space-time that are set off by extremely violent, cosmic cataclysms in the early universe. With his knowledge of the universe and the technology available in 1916, Einstein assumed that such ripples would be “vanishingly small” and nearly impossible to detect. My comment:…

Read More

Neuroscience Virtual Event vs AAAS Symposium

Neuroscience Virtual Event Abstract Submission Poster title: From hydrogen-atom transfer in DNA base pairs to ecosystems (March 16-17, 2016) Abstract: This atoms to ecosystems model of ecological adaptations links nutrient-dependent epigenetic effects on DNA base pairs in solution and RNA-mediated amino acid substitutions to chromosomal rearrangements via pheromone-controlled changes in the microRNA / messenger RNA balance. The nutrient-dependent pheromone-controlled changes are required for the thermodynamic regulation of intracellular signaling, which enables biophysically constrained nutrient-dependent & pH-dependent protein folding; experience-dependent receptor-mediated behaviors,…

Read More

Mechanisms of stress: from genes to cancer

Biophysically constrained nutrient-dependent thermodynamic cycles of protein biosynthesis and degradation link the epigenetic landscape to the physical landscape of DNA in all living genera. Genomic stability arises in the context of a fine-tuned balance of viral microRNAs and nutrient-dependent microRNAs.  RNA-mediated gene duplication and RNA-mediated amino acid substitutions stabilize organized genomes. Nutrient-dependent microRNAs are linked by RNA-mediated amino acid substitutions from ecological variation to protection from DNA damage caused by viral microRNAs. The microRNA/messenger RNA balance links ecological variation to…

Read More