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Are myoepithelial cells confined to genital coelomic sinus in the gonads of sea stars?

Are myoepithelial cells confined to genital coelomic sinus in the gonads of sea stars?

Authors :
Kalachev AV
Dyachuk VA
Source :
Tissue & cell [Tissue Cell] 2022 Jun; Vol. 76, pp. 101757. Date of Electronic Publication: 2022 Feb 11.
Publication Year :
2022

Abstract

An ultrastructural study of the gonadal wall in 10 sea star species from the orders Forcipulatida, Paxillosida, Spinulosida, Valvatida and Velatida has shown variations in the presence of myoepithelial cells in the visceral peritoneal epithelium. These cells have only been found in the peritoneal epithelium of the gonads in Aphelasterias japonica (Forcipulatida: Asteriidae), Asterias amurensis (Forcipulatida: Asteriidae), Distolasterias nipon (Forcipulatida: Asteriidae), Diplopteraster multipes (Velatida: Pterasteridae), Luidia quinaria (Paxillosida: Ctenodiscidae), and Pteraster sp. (Velatida: Pterasteridae). Our results may shed light on the evolution of peritoneal epithelium of sea star gonads. It is probable that, initially sea stars had myoepithelial cells in visceral peritoneal epithelium of the gonads. The species from the orders Forcipulatida and Velatida have retained this plesiomorphic state, while many species from the orders Paxillosida, Spinulosida and Valvatida have lost myoepithelial cells from visceral peritoneal epithelium of their gonads.<br /> (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Details

Language :
English
ISSN :
1532-3072
Volume :
76
Database :
MEDLINE
Journal :
Tissue & cell
Publication Type :
Academic Journal
Accession number :
35180554
Full Text :
https://doi.org/10.1016/j.tice.2022.101757