Genomics

Rapid Genetic Evolution Linked to Lighter Skin Pigmentation in a Southern African Population

December 11, 2018
Study finds that a gene for lighter skin spread rapidly among people in southern Africa in the last 2,000 years. University of California, Davis, researchers and colleagues report that the gene was introduced from eastern Africa to southern African populations. Strong positive selection caused this gene to rise in frequency among some KhoeSan populations.

First Jellyfish Genome Reveals Ancient Beginnings of Complex Body Plan

December 03, 2018
Jellyfish undergo an amazing metamorphosis, from tiny polyps growing on the seafloor to swimming medusae with stinging tentacles. The first in-depth look at the genome of a jellyfish — the moon jelly Aurelia aurita — reveals the origins of this successful survival strategy.

Study Challenges Role of Speech Gene in Evolution of Human Language

August 03, 2018
The FOXP2 gene has been associated with uniquely human language abilities. But a UC Davis scientist and colleagues did a study with a wider variety of people and found no evidence of selection for FOXP2 in modern humans, challenging previous of how we think humans acquired language.