Mariia A Maiorova,Yulia O Kipryushina,Konstantin V Yakovlev Mariia A Maiorova

Using single-gene/transcript mapping, we analyzed the expression of the Otx gene at the mRNA isoform level in some embryonic and adult tissue mRNA libraries of the sea urchin Strongylocentrotus purpuratus available in GenBank.

Marta S Magri,Danila Voronov,Saoirse Foley et al. Marta S Magri et al.

We generated new reference genome assemblies for two species belonging to two different echinoderm classes: the purple sea urchin Strongylocentrotus purpuratus and the bat sea star Patiria miniata using PacBio and HiC data and characterize their 3D chromatin architecture....We systematically profiled CREs during sea star and sea urchin development using ATAC-seq, comparing their regulatory logic and dynamics over multiple developmental stages....Finally, our analysis of sea urchin and sea star CRE evolution across multiple evolutionary distances and timescales showed several thousand elements conserved for hundreds of millions of years, revealing a vertebrate-like pattern of CRE evolution that probably constitutes an ancestral property of the

Danae Patsiou,Argyro Adamopoulou,Nikoletta Digka et al. Danae Patsiou et al.

Additionally, students participated in the sampling of a sea urchin (Paracentrotus lividus), while scientists conducted the analysis for ingested MPs. The results revealed an average of 1.6 and 2 MPs per individual for Methoni and P. Fokaia, respectively.

Stefano Davide Vianello,Ching-Yi Lin,Wahyu Cristine Pinem et al. Stefano Davide Vianello et al.

Patterning systems composed of Hox, ParaHox, and, surprisingly, other transcription factors (TFs) known to be involved in gut formation in sea urchin larvae are maintained in these adult tissues.

Eugeny E Orlov,Polina S Timoshina,Elena A Parshina et al. Eugeny E Orlov et al.

At the dawn of experimental embryology, Hans Driesch demonstrated that separated sea urchin blastomeres can develop into fully proportioned organisms, revealing an intrinsic capacity for embryonic scaling. However, the molecular mechanisms that enable this phenomenon remain poorly understood....Here, we present optimized protocols for generating half-sized embryos from separated blastomeres in two phylogenetically distant model organisms: the green sea urchin (Strongylocentrotus droebachiensis) and the frog (Xenopus laevis).

Jeremie Bauer,Jorge Olmos Jeremie Bauer

This review analyzes current research on short-term culture of sea urchin from barrens through formulated feed, addressing the need for sustainable aquaculture practices and ecological restoration of kelp forests....Our analysis suggests that macroalgae are the best feed ingredients to improve gonad growth and coloration; however, environmental and economic challenges persist in expanding sea urchin production with these types of ingredients....The review also explores the potential of sea urchin aquaculture in mitigating urchin barrens and restoring kelp forests, highlighting the interplay between ecological and economic factors....These findings have significant implications for developing sustainable and economically viable sea urchin aquaculture, potentially transforming urchin barrens into productive ecosystems while meeting market demand for roe....Keywords: echinoderm aquaculture; functional feed; restorative aquaculture; sea urchin barrens; uni production; urchin feed formulation.

Gianni Brundu,Philip Graham,Mattia Corrias et al. Gianni Brundu et al.

The European flat oyster Ostrea edulis and the stony sea urchin Paracentrotus lividus play key ecological roles in Mediterranean coastal ecosystems, supporting biodiversity and ecosystem functions.

Xinran Zhao,Ankai Zhang,Yu Guo et al. Xinran Zhao et al.

Tripneustes gratilla is an economically important sea urchin species that is found in the tropics and has great potential for market development. However, owing to habitat loss, overfishing, climate change and other factors, the natural resources of this species have experienced serious decline.

Estela Carbonell-Garzón,Ricardo Ibanco-Cañete,Pablo Sanchez-Jerez et al. Estela Carbonell-Garzón et al.

Keywords: Arbacia lixula; HR-MAS NMR spectroscopy; Paracentrotus lividus; ecological adaptation; gonadal biochemistry; microbial interactions; osmolytes and amino acids; reproductive physiology; sea urchin metabolomics.

Alwin Hylkema,Oliver J Klokman Alwin Hylkema

To understand recovery dynamics and support restoration, greater insight into factors constraining sea urchin population recovery is essential.