Overview
Research published in Nature Communications details observations of shared genetic, cellular, and signaling characteristics between human ovaries and those of bat sea stars. These similarities are noted despite a substantial evolutionary divergence between the two species.
Research Context
Bat sea stars (often found on the seafloor) and humans exhibit a significant evolutionary separation. The study explored the underlying organization of reproductive structures, specifically ovaries, across this evolutionary divide. The research investigated whether fundamental aspects of ovarian development and function could be conserved over long evolutionary timescales.
Findings
- Human and sea star ovaries share similar genetics.
- Similar cell types are present in both human and sea star ovaries.
- Signaling processes involved in ovarian function are common to both human and sea star ovaries.
These shared features suggest an ancient origin for the ovarian blueprint, maintained across divergent species such as humans and sea stars.
Why This Matters
The findings indicate that the fundamental blueprint for an ovary is ancient. This implies a conserved evolutionary basis for a complex organ in distantly related species.