Cadherins control intercellular adhesion in epithelial cells. This property relies on the ability to recruit actin filaments at adherens junctions via beta-catenin and alpha-catenin. A recent study shows that Echinoid, a member of the immunoglobulin domain containing protein family, is a modulator of intercellular adhesion in Drosophila that controls cell sorting.

Classification: Biological Sciences, Developmental Biology 1 2 Title: Divergence of gene regulatory network linkages during specification of ectoderm and 3 mesoderm in early development of sea urchins 4 5 Short Title: Divergence of GRNs in early echinoid embryos 6 7 Author Affiliations: 8 Eric M. Erkenbrack and Eric H. Davidson 9 10 Division of Biology and Biological Engineering, California Ins...

Effects of salinity on fertilization, embryonic, and early larval development and growth performances of long-spined black sea urchin (Diademasetosum) were investigated in a controlled laboratory condition. The experiment was carried out with seven salinity treatments (22, 25, 28, 31, 34, 37 and 40ppt), each of which was triplicated. Significantly highest fertilization success was achieved at 3...

—The Permian is regarded as one of the most crucial intervals during echinoid evolution because crown group echinoids are first widely known from the Permian. New faunas provide important information regarding the diversity of echinoids during this significant interval as well as the morphological characterization of the earliest crown group and latest stem group echinoids. A new fauna from the...

A second discovery of the echinoid associated shrimp species Diapontonia maranulus Bruce, 1986 is recorded from deep water off Curaçao, Leeward Islands of the Dutch Caribbean. The material is compared with the type description and paratypic material as well as with material of closely related species. A mtDNA COI barcode was obtained from the material. The systematic position of the genus is di...

This database includes over 7,100 georeferenced occurrence records of sea urchins (Echinodermata: Echinoidea) obtained from samples collected in the Southern Ocean (+180°W/+180°E; -35°/-78°S) during oceanographic cruises led over 150 years, from 1872 to 2015. Echinoids are common organisms of Southern Ocean benthic communities. A total of 201 species is recorded, which display contrasting depth...

Covering behavior refers to the propensity of echinoids (Echinoidea) to lift materials from the surrounding environment onto their aboral surfaces using their tube feet and spines. This behavior has been widely documented in regular echinoids from a variety of well-lit, shallowmarine habitats. Covering behavior in the deep sea, however, is rarely observed, and the functional significance of cov...