Quick Take Inbreeding occurs when relatives mate and can cause inbreeding depression, with abnormalities, health issues, and reduced fertility. Cheetahs have very low genetic variation, leading to ...

Historic population bottlenecks left cheetahs genetically similar, increasing disease risk and threatening long-term survival ...

Animal breeding has traditionally focused on improving mean trait performance; however, contemporary research increasingly highlights the significance of genetic variation not only in trait means but ...

Aortic stenosis is a narrowing of the aortic valve which connects the heart to the rest of the body. It affects millions of people and can be fatal if left untreated. At present, there are no ...

Are human beings as unique as snowflakes? Not quite, but new research shows humans may have a lot more individuality than originally thought -- in fact, the genetic codes of people can vary by as much ...

Humans were isolated in southern Africa for about 100,000 years, which caused them to "fall outside the range of genetic variation" seen in modern-day people, a new genetic study reveals. The finding ...

Genetic factors account for much of the variation in personality traits across the lifespan. Shared upbringing plays a ...

The present theory offers a unified solution to three closely related evolutionary problems. (1) Why does an evolving population explore only a small fraction of the accessible pathways in genotype ...

Researchers from the Psychiatric Genomics Consortium (PGC) report that most genetic influences on mental illness are shared across diagnostic categories, revealing a more interconnected biological ...

This large-scale genomic analysis of 14 psychiatric disorders shows that most heritable risk is shared across five broad ...