Results 81 to 90 of about 1,652 (201)

Developmental expression of transcription factor genes in a demosponge: insights into the origin of metazoan multicellularity.

, 2018
Demosponges are considered part of the most basal evolutionary lineage in the animal kingdom. Although the sponge body plan fundamentally differs from that of other metazoans, their development includes many of the hallmarks of bilaterian and eumetazoan ...
Veronica F. Hinman (190364), Gert Wörheide (5063723), Bryony Fahey (5063726), Milena Gongora (5063717), Kathryn Green (5063711), Marie Gauthier (5063708), Bernard M. Degnan (35074), Danielle Liubicich (5063720), Sally P. Leys (192243), Claire Larroux (5063714)   +9 more
core   +1 more source

Demosponge diversity from North Sulawesi, with the description of six new species

ZooKeys, 2017
Sponges are key components of the benthic assemblages and play an important functional role in many ecosystems, especially in coral reefs. The Indonesian coral reefs, located within the so-called “coral triangle”, are among the richest in the world ...
Barbara Calcinai, Azzurra Bastari, Giorgio Bavestrello, Marco Bertolino, Santiago Bueno Horcajadas, Maurizio Pansini, Daisy M. Makapedua, Carlo Cerrano   +7 more
doaj   +3 more sources

Revisiting the silicon isotopic signal of sponge skeletons and its implications

Limnology and Oceanography, Volume 70, Issue 9, Page 2480-2495, September 2025.
Abstract This study investigates the relationship between the silicon (Si) isotopic composition of sponge skeletal silica (δ30SibSi) and seawater characteristics in sponge habitats, specifically the concentration of dissolved silicic acid and its Si isotopic signature (δ30SidSi).
Manuel Maldonado, Katharine R. Hendry
wiley   +1 more source

The ontogeny of choanocyte chambers during metamorphosis in the demosponge Amphimedon queenslandica

EvoDevo, 2016
Background The aquiferous body plan of poriferans revolves around internal chambers comprised of choanocytes, a cell type structurally similar to choanoflagellates.
Shunsuke Sogabe, Nagayasu Nakanishi, Bernard M. Degnan   +2 more
doaj   +1 more source

Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean

Environmental DNA, Volume 7, Issue 2, March/April 2025.
In the face of climate change, organisms must adapt or shift their ranges to survive. Our study conducted the first COI marker‐based eDNA survey in the Pacific Gateway of the Arctic Ocean, analyzing seawater samples from the Bering Strait and Chukchi Sea.
Gerlien Verhaegen, Tatsuya Kawakami, Ayla Murray, Akihide Kasai, Charlotte Havermans   +4 more
wiley   +1 more source

Analysis of evolutionary, biogeographical and taxonomic patterns of nucleotide composition in demosponge rRNA

, 2007
The ribosome is the location of protein translation and therefore a pivotal macromolecular complex for all organisms. The RNA molecules involved in the formation and functioning of the ribosome (rRNA) are partially single-stranded (loops) and partially ...
Cleary, D. F. R., Degnan, B.M., Cleary, D.F.R., Degnan, B. M., Hooper, J. N. A., Hooper, John N. A., Erpenbeck, Dirk, Nichols, S.A., Erpenbeck, D.J.G., Nichols, S. A., Voigt, O., Degnan, Bernard M., Erpenbeck, D., Worheide, G., Cleary, Danny F. R., Nichols, Scott A., Hooper, J.N.A., Voigt, Oliver, Woerheide, Gert   +18 more
core   +1 more source

Determination of the Halogenated Skeleton Constituents of the Marine Demosponge Ianthella basta

Marine Drugs, 2017
Demosponges of the order Verongida such as Ianthella basta exhibit skeletons containing spongin, a collagenous protein, and chitin. Moreover, Verongida sponges are well known to produce bioactive brominated tyrosine derivatives.
Susanne Ueberlein, Susanne Machill, Peter J. Schupp, Eike Brunner   +3 more
doaj   +1 more source

Habitat heterogeneity over multiple scales supports dense and diverse megafaunal communities on a northeast Pacific ridge

Limnology and Oceanography, Volume 70, Issue 2, Page 377-392, February 2025.
ABSTRACT Marine environments are highly heterogeneous, varying across scales of a few meters to entire ocean basins. Understanding the relationship between environmental variability and species distribution is essential for area‐based management and conservation.
Fanny Girard, David W. Caress, Jennifer B. Paduan, Linda A. Kuhnz, Steven Y. Litvin, Emma Flattery, Amanda S. Kahn, Andrew DeVogelaere, Erica J. Burton, Christopher Lovera, Eric J. Martin, James P. Barry   +11 more
wiley   +1 more source

FIGURE 1 in Keratose sponge MuseOMICS: setting reference points in dictyoceratid demosponge phylogeny

, 2022
FIGURE 1. Maximum Likelihood phylogram of concatenated ITS and 28S sequences from type material of type species for dictyoceratid genera. Numbers at branches are bootstrap values> 50%.
Galitz, Adrian, Agne, Stefanie, Straube, Nicolas, Wörheide, Gert, Preick, Michaela, Erpenbeck, Dirk, Ekins, Merrick, Hofreiter, Michael (Prof.), Hofreiter, Michael   +8 more
core   +1 more source

Multi‐Taxon Predictions of Deep‐Sea Corals and Sponges From Stacked Species Distribution Models in the United States West Coast Exclusive Economic Zone and Relation to Trawl Closure Zones

Diversity and Distributions, Volume 31, Issue 2, February 2025.
ABSTRACT Aim Abundant species distribution models (SDMs) of deep‐sea corals and sponges (DSCS) allow one to make community‐level predictions about DSCS. Pairing that with the conservation information of Vulnerable Marine Ecosystems (VMEs) due to their sensitivity to seafloor trawling, one can assess the efficacy of established seafloor protections ...
Arvind Shantharam, Matthew Poti, Arliss Winship, Yee Lau, Heather Coleman, Danielle Weissman, Renee Eaton, Robert McGuinn, Just Cebrian, Thomas Hourigan   +9 more
wiley   +1 more source