Results 1 to 10 of about 20,338 (222)

Echinoderm immunity [PDF]

open access: yesInvertebrate Survival Journal, 2010
Echinoderms are exclusively marine animals that, after the chordates, represent the second largest group of deuterostomes. Their diverse species composition and singular ecological niches provide at the same time challenges and rewards when studying the ...
F Ramírez-Gómez, J E García-Arrarás
doaj   +5 more sources

Species richness and distribution patterns of echinoderms in the southwestern Atlantic Ocean (34-56°S) [PDF]

open access: yesScientia Marina, 2014
The aim of this study was to compile and analyse available historical information on echinoderms in the southwestern Atlantic Ocean in order to make a synthesis of present taxonomical knowledge, to identify patterns of geographical distribution of ...
Valeria Souto   +3 more
doaj   +5 more sources

Antero-posterior patterning in the brittle star Amphipholis squamata and the evolution of echinoderm body plans [PDF]

open access: yesEvoDevo
Although the adult pentaradial body plan of echinoderms evolved from a bilateral ancestor, identifying axial homologies between the morphologically divergent echinoderms and their bilaterian relatives has been an enduring problem in zoology.
L. Formery   +4 more
doaj   +2 more sources

Symbiotic interactions on middle Cambrian echinoderms reveal the oldest parasitism on deuterostomes [PDF]

open access: yesScientific Reports
Biotic interactions are considered as major drivers of evolutionary changes, but their identification in the fossil record is extremely rare and controversial.
Iban Goñi   +8 more
doaj   +2 more sources

The Evolution and Diversity of SALMFamide Neuropeptides [PDF]

open access: yes, 2013
The SALMFamides are a family of neuropeptides that act as muscle relaxants in echinoderms. Two types of SALMFamides have been identified: L-type (e.g.
Achhala, S, Elphick, MR, Martynyuk, N
core   +15 more sources

Environmental Drivers of Mesophotic Echinoderm Assemblages of the Southeastern Pacific Ocean

open access: yesFrontiers in Marine Science, 2021
Mesophotic ecosystems (50–400 m depth) of the southeastern Pacific have rarely been studied because of the logistical challenges in sampling across this remote zone. This study assessed how oxygen concentrations and other environmental predictors explain
Ariadna Mecho   +9 more
doaj   +1 more source

Large-scale spatial distribution patterns of echinoderms in nearshore rocky habitats. [PDF]

open access: yesPLoS ONE, 2010
This study examined echinoderm assemblages from nearshore rocky habitats for large-scale distribution patterns with specific emphasis on identifying latitudinal trends and large regional hotspots.
Katrin Iken   +17 more
doaj   +1 more source

Symbiotic Life of Echinoderm Larvae

open access: yesFrontiers in Ecology and Evolution, 2020
Echinoderm larvae have served as a fundamental system for understanding development and life history evolution over much of the last century. In the last few decades, our understanding of echinoderm larvae has expanded to the microbiota that they ...
Tyler J. Carrier, Adam M. Reitzel
doaj   +1 more source

Gene regulation of adult skeletogenesis in starfish and modifications during gene network co-option

open access: yesScientific Reports, 2021
The larval skeleton of the echinoderm is believed to have been acquired through co-option of a pre-existing gene regulatory network (GRN); that is, the mechanism for adult skeleton formation in the echinoderm was deployed in early embryogenesis during ...
Atsuko Yamazaki   +4 more
doaj   +1 more source

Genome-wide identification and spatiotemporal expression analysis of cadherin superfamily members in echinoderms

open access: yesEvoDevo, 2023
Background Cadherins are calcium-dependent transmembrane cell–cell adhesion proteins that are essential for metazoan development. They consist of three subfamilies: classical cadherins, which bind catenin, protocadherins, which contain 6–7 calcium ...
Macie M. Chess   +3 more
doaj   +1 more source

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