An analysis of the genomic features that distinguish conserved from species-specific circular RNAs reveals that the expansion of the downstream intron by insertion of retrotransposons stabilizes circular RNAs' production across 30+ millions years of evolution.
Bleaching-resistant corals are widespread across Palau and concentrated in warmer regions, but this trait is associated with decreased growth which could lead to reduced fitness if it is the only priority of conservation efforts.
Replicating experimental evolution from ancestral proteins shows that historical contingency steadily overwhelms chance and necessity as the primary cause of evolutionary variation in molecular sequences on long phylogenetic timescales.
Humans showed the most widespread asymmetric connectivity between the inferior parietal lobule subregions and the rest of the brain compared to macaques and chimpanzees, which shapes hemispheric specialization in primates.
Detailed analysis of transporter expression and glucose uptake rates shows that carbohydrate import at the blood–brain barrier is adapted via TGF-βsignaling-dependent transcriptional regulation of carbohydrate transporters to protect the brain form effects of nutrient shortage.