Results 31 to 40 of about 1,519 (159)

Independent Innexin Radiation Shaped Signaling in Ctenophores

Molecular Biology and Evolution, 2022
Abstract Innexins facilitate cell–cell communication by forming gap junctions or nonjunctional hemichannels, which play important roles in metabolic, chemical, ionic, and electrical coupling. The lack of knowledge regarding the evolution and role of these channels in ctenophores (comb jellies), the likely sister group to the rest of ...
Jennifer Ortiz, Yuriy V. Bobkov, Melissa B. DeBiasse, Dorothy G Mitchell, Allison Edgar, Mark Q. Martindale, Anthony G. Moss, Leslie S. Babonis, Joseph F. Ryan   +8 more
openaire   +2 more sources

Nuclear receptors from the ctenophore Mnemiopsis leidyi lack a zinc-finger DNA-binding domain: lineage-specific loss or ancestral condition in the emergence of the nuclear receptor superfamily?

EvoDevo, 2011
Background Nuclear receptors (NRs) are an ancient superfamily of metazoan transcription factors that play critical roles in regulation of reproduction, development, and energetic homeostasis.
Reitzel Adam M, Pang Kevin, Ryan Joseph F, Mullikin James C, Martindale Mark Q, Baxevanis Andreas D, Tarrant Ann M   +6 more
doaj   +1 more source

Improved histological fixation of gelatinous marine invertebrates

Frontiers in Zoology, 2021
Background Gelatinous zooplankton can be difficult to preserve morphologically due to unique physical properties of their cellular and acellular components.
Dorothy G. Mitchell, Allison Edgar, Mark Q. Martindale   +2 more
doaj   +1 more source

The first identification of complete Eph-ephrin signalling in ctenophores and sponges reveals a role for neofunctionalization in the emergence of signalling domains

BMC Evolutionary Biology, 2019
Background Animals have a greater diversity of signalling pathways than their unicellular relatives, consistent with the evolution and expansion of these pathways occurring in parallel with the origin of animal multicellularity.
Arunkumar Krishnan, Bernard M. Degnan, Sandie M. Degnan   +2 more
doaj   +1 more source

First records of two lobate comb-jellies (Ctenophora) from the Pakistani coast [PDF]

Check List, 2015
The knowledge on the comb-jellies faunistics along the southern Asian coast is very scarce. For some countries such as Pakistan there are no previous formal records of ctenophores. This study is a first survey to the group diversity along Pakistani coast,
Shahnawaz Gul, Otto Oliveira
doaj   +3 more sources

Three Distinct Views of Deep Pelagic Community Composition Based on Complementary Sampling Approaches

Frontiers in Marine Science, 2022
Our perception of deep-sea communities has evolved as various sampling approaches have captured different components of deep-sea habitats. We sampled midwater zooplankton assemblages in Monterey Bay, California to quantify community composition ...
Elizabeth D. Hetherington, C. Anela Choy, Erik V. Thuesen, Steven H. D. Haddock   +3 more
doaj   +1 more source

Environmental drivers and ecological implications of a ctenophore swarm: a case study from the Bay of Bengal, northern Indian Ocean

Journal of Water and Climate Change, 2023
Ctenophores are quick responders to coastal environmental changes and play a crucial role in marine food web dynamics. We report the environmental drivers of a ctenophore swarm (Pleurobrachia spp.) and associated ecological changes in estuarine and ...
Alfisa Siddique, Aishee Bhowal, Jasmine Purushothaman, Rakhesh Madhusoodhanan, Dhriti Banerjee   +4 more
doaj   +1 more source

Gelatinous zooplankton net-collected in the Gulf of Maine and adjacent submarine canyons: new species, new family (Jeanbouilloniidae), taxonomic remarks and some parasites

Scientia Marina, 2006
A systematic account is provided of the siphonophores, medusae, ctenophores, molluscs and salps net-collected in basins of the Gulf of Maine and adjacent canyons during three cruises carried out in September 2002, 2003 and 2004.
Francesc Pagès, Per Flood, Marsh Youngbluth   +2 more
doaj   +1 more source

Alternative neural systems: What is a neuron? (Ctenophores, sponges and placozoans)

Frontiers in Cell and Developmental Biology, 2022
How to make a neuron, a synapse, and a neural circuit? Is there only one ‘design’ for a neural architecture with a universally shared genomic blueprint across species?
Leonid L. Moroz, Leonid L. Moroz, Daria Y. Romanova   +2 more
doaj   +1 more source

The impacts of biological invasions

Biological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source