comparative genomics
Sequencing Study Uncovers Genes Under Positive Selection in Large, Long-Lived Sea Creatures
Sequences from a range of cetacean species suggest the aquatic environment has exerted selective pressure genes involved in growth, cancer suppression, and other features.
Boost to Modern Human Brain Linked to Single Amino Acid Substitution
A modern human-specific lysine-to-arginine substitution in transketolase-like 1 led to enhanced neuron cell levels and neuroprogenitor representation in the brain's frontal neocortex.
Ancient Wolf Genomes Reveal Ice Age Population Connections, Clues to Origins of Dogs
Based on dozens of ancient wolf genomes, researchers detected genetic connectedness during the Ice Age and proposed at least two wolf sources of dog domestication.
Octopus, Squid Genome Assemblies Reveal Hallmarks of Cephalopod Evolution
Researchers detected genome shuffling, gene expansions, and RNA editing changes in the cephalopod lineage using genome assemblies for three representatives.
Unique Fraction of Modern Human Genome Surprisingly Small, Comparison With Archaic Hominins Suggests
Human-specific sequences not found in Neanderthals or Denisovans appeared to make up 1.5 to 7 percent of the human genome, contributing to brain-related processes.