OT: RNA determines butterfly black patterns

Genomic dark matter solves butterfly evolutionary riddle
 https://www.sciencedaily.com/releases/2024/08/240830164205.htm

New study reveals how an unexpected genetic mechanism influences the evolution of butterfly wing coloration
Date:
 August 30, 2024
Source:
 George Washington University
Summary:
  Researchers have uncovered a surprising genetic mechanism that influences the vibrant and complex patterns on butterfly wings. The team discovered that an RNA molecule, rather than a protein as previously thought, plays a pivotal role in determining the distribution of black pigment on butterfly wings.

The findings not only challenge long-standing assumptions about genetic regulation
but also open up new avenues for studying how visible traits evolve in animals.