Genetic probes give new clues about the stunning diversity of comb jellies

Ctenophores (pronounced “TEEN-o-fours”), also known as comb jellies, mesmerize with their beauty, but these ubiquitous gelatinous animals remain poorly studied, largely due to their delicate nature. MBARI researchers are leveraging the power of genetics to learn more about comb jellies. Since comb jellies are so delicate, they can be challenging to study. MBARI uses submersibles and scuba to carefully collect these fragile, gelatinous animals. Genetic analysis of these specimens has revealed surprising details. In fact, our researchers have uncovered several new species and some familiar species aren’t who we thought from their appearance alone. This work lays the foundation for reading genetic fingerprints across the family tree of comb jellies. In the future, we’ll be able to detect comb jellies by the DNA they leave behind in seawater. Learn more: Christianson, L., S. Johnson, D. Schultz, and . Haddock (2021). Hidden diversity of Ctenophora revealed by new mitochondrial