Post-metamorphic skeletal growth in the sea urchin Paracentrotus lividus and implications for body plan evolution.

ABSTRACT:

Background

Understanding the molecular and cellular processes that underpin animal development are crucial for understanding the diversity of body plans found on the planet today. Because of their abundance in the fossil record, and tractability as a model system in the lab, skeletons provide an ideal experimental model to understand the origins of animal diversity. We herein use molecular and cellular markers to understand the growth and development of the juvenile sea urchin (echinoid) skeleton.

Results

We developed a detailed staging scheme based off of the first ~ 4 weeks of post-metamorphic life of the regular echinoid Paracentrotus lividus. We paired this scheme with immunohistochemical staining for neuronal, muscular, and skeletal tissues, and fluorescent assays of sk

SUBMITTER: Thompson JR 

PROVIDER: S-EPMC7968366 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature