Moths' Evolution Driven by Genetic Clockwork

Study reveals how differences in circadian rhythms led to the speciation of two moth species in the southeastern U.S.

Researchers discovered that clock genes, particularly the 'disco' gene, play a critical role in moth speciation.
Two closely related moth species evolved into separate species by shifting their active periods from day to night.
The study provides a rare example of molecular-level speciation driven by temporal isolation rather than physical barriers.
Differences in gene expression between the species highlight the importance of diverse genetic studies for broader biological insights.
Findings emphasize the need for a wider pool of functionally characterized genes to address environmental challenges.