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evolutionary biology

Analysis of a gene associated with basal progenitor cell expansions in the brain suggests a single splice site change led to human-specific forms of the gene transcript.

Modern humans' population size has enabled weakly deleterious Neanderthal genes to be removed from the human genome, UC Davis researchers found.

Researchers established a high-quality version of the five-pacer viper genome and used it to take a wider look at snake relationships and adaptations. 

Researchers from the US and Germany assembled the genome of the small nocturnal primate and found a number of unusual insertions, including a complete mitochondrial genome.

By focusing on sequences that have diverged rapidly in humans, researchers identified regulatory sequences suspected of affecting neural processes.

Mountain chickadee

Researchers used thousands of conserved sequences for more than 100 songbird species to reconstruct their diversification and historical expansion route.

A comparative genomics study suggests ants with obligate mutualist relationships to plants may have higher rates of molecular evolution than generalist ants.

Colugo

With the help of a new draft genome assembly, researchers have found that a Southeast Asian gliding mammal called the colugo is closely related to primates. 

A genomic look at estrogen receptor-positive tumors before and after neoadjuvant aromatase inhibitor therapy suggests ongoing molecular monitoring may be needed.

New research shows early man's use of fire may have triggered mutations that contributed to human evolution.

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The Wall Street Journal reports on gaps in COVID-19 testing affecting less affluent urban areas and rural locations.

According to NBC News, new SARS-CoV-2 variants are making it harder for researchers to model the course of the pandemic.

The New York Times reports that experts say President Joe Biden's goal of vaccinating 1 million people a day in the US in the next 100 days is too low a bar.

In Science this week: single-cell lineage tracing technique applied to study lung cancer metastasis, and more.