The origin of eukaryotes is one of the key problems in evolutionary biology. The demonstration that the last eukaryotic common ancestor (LECA) already contained the mitochondrion—an endosymbiotic organelle derived from […]
biorxiv via PubMed
Posted inGenomics, Proteomics, Bioinformatics, Microbiology & Virology, Status Report
Obelisks: Newly-Discovered Viroid-like Colonists Of Human Microbiomes
Editor’s note: researchers were surprised recently when an unexpected and rather novel biological structure was found inside the cells of the human gut. Nicknamed “obelisks” due to their shape, these […]
Posted inBiochemistry & Organic Chemistry, Biophysics, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Status Report
The Effectiveness Of Selection In A Species Affects The Direction Of Amino Acid Frequency Evolution
Nearly neutral theory predicts that species with higher effective population size (Ne) are better able to purge slightly deleterious mutations.