# The successful search for genetic loci associated with depression

## TL;DR

A new study successfully identified two genetic variants linked to depression using low-coverage sequencing and reduced heterogeneity.

## Contribution

The study introduces low-coverage sequencing and reduced heterogeneity to identify robust genetic loci for depression.

## Key findings

- Two genetic variants were identified and replicated as risk factors for depression.
- Low-coverage sequencing proved effective in uncovering these loci.
- Reducing phenotypic and genetic heterogeneity improved study outcomes.

## Abstract

Major depressive disorder is among the leading causes of disease burden and disability, as well as a major public health concern worldwide. Despite its substantial heritability, no robustly replicated genetic risk loci had been found until recently. Now, a new study has identified, and replicated, two variants associated with an increased risk for this disorder. The success of this study appears to lie in the use of low-coverage sequencing, instead of microarrays, and in minimizing phenotypic and genetic heterogeneity.