Tag Archive: honeybee

Olfaction, ecology, and intelligence

rp_poster-from-jesse.jpg

“I should think we might fairly gauge the future of biological science, centuries ahead by estimating the time it will take to reach a complete comprehensive understanding of odor. It may not seem a profound enough problem to dominate all…
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Modeling conserved microRNA expression

translocated chromosome

Insects as models to study the epigenetic basis of disease Excerpt: “…selected insects can be used as models for human diseases with an epigenetic component because the underlying molecular mechanisms (DNA methylation, histone acetylation and the expression of microRNAs) are…
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Rejecting what is known about viral microRNAs and nutrient-dependent microRNAs

terrarium eco system

Of Cells and Limits Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement. By Anna Azvolinsky | March 1, 2015…
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Imagining that data historically supports evolutionary theory

human-evolution

1) Arguments in the evo-devo debate: say it with flowers! Abstract excerpt: A key question in evolutionary developmental biology is how DNA sequence changes have directed the evolution of morphological diversity. The widely accepted view was that morphological changes resulted…
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Chemical ecology and RNA-mediated control of DNA loops

terrarium eco system

DNA Loop-the-Loops A new full-genome map indicates how DNA is folded within the nuclei of human cells.By Kate Yandell | December 11, 2014 Excerpt: “…many loops were conserved among cell types, and even between mice and humans. But others seemed…
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One test of bioenergetic health?

human-evolution

Success of new-generation metabolo-therapies in personalized medicine depends on measuring bioenergetic health Excerpt: “In one test, a comprehensive measure of energetic health, or its disease-related deterioration, can now be made. The prognostic and diagnostic value of bioenergetic measurements in patients…
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Epigenetic pharmacology and RNA-mediated transciptional landscapes

terrarium eco system

Last year, Vosshall’s group eliminated ideas about the involvement of beneficial mutations in the nutrient-dependent cell type differentiation of mosquitoes. orco mutant mosquitoes lose strong preference for humans and are not repelled by volatile DEET. This year her group showed…
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RNA-mediated events and “The Theory of Everything”

Physics

The Large Scale Structure of Space-Time Co-author George F.R. Ellis won the 2004 Templeton Prize People like him are likely to recognize the top-down link from light-induced amino acid substitutions to epigenetically-effected neuronal structure and function. In my model, light-induced…
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Thermodynamic constraints and ecological adaptations sans evolution

Physics

Relationship between protein thermodynamic constraints and variation of evolutionary rates among sites Excerpt: “…a two-variable model that combines stability and stress signi ficantly improves predictions. Therefore, both the overall stability [symbol] and the stress [symbol] seem to capture distinct thermodynamic constraints on…
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Eliminating correlations from evolutionary ecology

terrarium eco system

De novo creation of olfactory receptor genes clearly links food odors via amino acid substitutions to cell type differentiation in mosquitoes, and in nematodes, flies, honeybees, etc. It would be surprising if cause and effect did not extend to vertebrates…
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