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Related Experiment Video

Updated: Jun 21, 2026

Inducing Complete Polyp Regeneration from the Aboral Physa of the Starlet Sea Anemone Nematostella vectensis

Inducing Complete Polyp Regeneration from the Aboral Physa of the Starlet Sea Anemone Nematostella vectensis

Published on: January 14, 2017

Bindin from a sea star.

Susana Patiño¹, Jan E Aagaard, Michael J MacCoss

¹Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada V5A 1S6.

Evolution & Development

|July 16, 2009

Summary

This summary is machine-generated.

Bindin, a key protein in sea urchin reproduction, is also found in sea stars. This discovery expands our understanding of bindin evolution and its role in speciation across echinoderms.

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Last Updated: Jun 21, 2026

Inducing Complete Polyp Regeneration from the Aboral Physa of the Starlet Sea Anemone Nematostella vectensis

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Genotyping of Sea Anemone during Early Development

Genotyping of Sea Anemone during Early Development

Published on: May 13, 2019

Area of Science:

Evolutionary biology
Reproductive biology
Genetics

Background:

Sperm-egg proteins are crucial for reproductive evolution.
Bindin protein studies in sea urchins illuminate gamete compatibility and speciation.
Bindin was previously thought to be specific to sea urchins (Echinoidea).

Purpose of the Study:

To characterize the bindin gene in the sea star Patiria miniata.
To investigate the evolutionary history and molecular characteristics of bindin beyond sea urchins.

Main Methods:

Sequencing and analysis of the bindin cDNA and its intron in Patiria miniata.
Comparative analysis of Patiria miniata bindin with sea urchin bindin.

Main Results:

A full-length bindin cDNA and intron were identified in Patiria miniata.
Patiria miniata bindin is larger than sea urchin bindin but shares domain structure and sequence features.
The evolutionary history of bindin is extended to the early Paleozoic.

Conclusions:

Bindin is not exclusive to sea urchins, suggesting a broader role in echinoderm reproduction.
This finding opens new avenues for studying bindin's role in sexual selection, life history, and speciation in sea stars.
The molecular evolution of bindin is a significant factor in the diversification of echinoderms.