Codon evolution is governed by linear formulas.

sorimachi submitted, created time 10 months 3 weeks (www.springerlink.com)

A new discavery that codon evolution is governed by linear formulas based on simple calculations of a lot of genomic data. This study has been dirived from the evidence that a gene assembly coding 3,000-7,000 amino acid residues represents the whole genome (Mycoscience 44(5): 415-417, 2003); genome is constructed homogeneously with putative small units coding similar amino acid compositions.

2 comments | Blog It | Email It | Keywords: genome evolution protein-coding gene genome assembly DNA genome Genome Biology codon usage optimization Neural Coding amino acid replacement amino acid

A Map of Olfactory Representation in the Drosophila Mushroom Body

amanda submitted, created time 1 year 9 months (www.cell.com)

"Neural coding for olfactory sensory stimuli has been mapped near completion in the Drosophila first-order center, but little is known in the higher brain centers."

Submit comment | Blog It | Email It | Keywords: Neural Coding brain map projection neurons

Fly Photoreceptors Demonstrate Energy-Information Trade-Offs in Neural Coding

dovechocolate submitted, created time 1 year 9 months (biology.plosjournals.org)

Many animals show striking reductions or enlargements of sense organs or brain regions according to their lifestyle and habitat. For example, cave dwelling or subterranean animals often have reduced eyes and brain regions involved in visual processing. These differences suggest that although there are benefits to possessing a particular sense organ or brain region, there are also significant costs that shape the evolution of the nervous system, but little is known about this trade-off, particularly at the level of single neurons

Submit comment | Blog It | Email It | Keywords: Photoreceptors Neural Coding