Results 61 to 70 of about 4,565 (205)

The bilaterian head patterning gene six3/6 controls aboral domain development in a cnidarian.

PLoS Biology, 2013
The origin of the bilaterian head is a fundamental question for the evolution of animal body plans. The head of bilaterians develops at the anterior end of their primary body axis and is the site where the brain is located.
Chiara Sinigaglia, Henriette Busengdal, Lucas Leclère, Ulrich Technau, Fabian Rentzsch   +4 more
doaj   +1 more source

NvPrdm14d-expressing neural progenitor cells contribute to non-ectodermal neurogenesis in Nematostella vectensis

Nature Communications, 2023
Neurogenesis has been studied extensively in the ectoderm, from which most animals generate the majority of their neurons. Neurogenesis from non-ectodermal tissue is, in contrast, poorly understood.
Quentin I. B. Lemaître, Natascha Bartsch, Ian U. Kouzel, Henriette Busengdal, Gemma Sian Richards, Patrick R. H. Steinmetz, Fabian Rentzsch   +6 more
doaj   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy, Dávid Mező, Kinga K. Nagy, Viktória Perey‐Simon, Judit Tóth, Angéla Békési, Beáta Vértessy, Máté Varga   +7 more
wiley   +1 more source

Circadian regulation of reproduction and neoblast cell division in the catenulid flatworm Stenostomum virginianum (Platyhelminthes)

Photochemistry and Photobiology, EarlyView.
The circadian clock and melatonin coordinate homeostasis in many animals, yet their influence on reproduction and neoblast proliferation has only been shown in triclads. This study demonstrates that the early‐branching catenulid Stenostomum virginianum contains photoreceptive refractile bodies, synthesizes endogenous melatonin, and that exogenous ...
Daniel L. Stanton, Ian D. Deas, J. Kennon Smith, Samuel B. Robinson, Adam M. Reitzel, Julian P. S. Smith III   +5 more
wiley   +1 more source

Functional roles of Notch signaling in the cnidarian Nematostella vectensis

Developmental Biology, 2012
Notch signaling is among the oldest of known Metazoan signaling pathways and is used in a multitude of developmental contexts to effect cellular differentiation, specification and the maintenance of stem cell state. Here we report the isolation and expression of the canonical Notch signaling pathway in the early branching metazoan Nematostella ...
Marlow, Heather, Roettinger, Eric, Boekhout, Michiel, Martindale, Mark Q.   +3 more
openaire   +2 more sources

Employing BAC-reporter constructs in the sea anemone Nematostella vectensis [PDF]

Integrative and Comparative Biology, 2013
Changes in the expression and function of genes drive evolutionary change. Comparing how genes are regulated in different species is therefore becoming an important part of evo-devo studies. A key tool for investigating the regulation of genes is represented by bacterial artificial chromosomes (BAC)-reporter constructs. BACs are large insert libraries,
Antje H L, Fischer, Sarah, Tulin, David, Fredman, Joel, Smith   +3 more
openaire   +2 more sources

Muscle cell-type diversification is driven by bHLH transcription factor expansion and extensive effector gene duplications

Nature Communications, 2023
Different muscle cell types account for specific abilities in animals, yet how their diversification arose remains unclear. Here, the authors show that gene duplications of bHLH transcription factors and effector genes contributed to the diversification ...
Alison G. Cole, Stefan M. Jahnel, Sabrina Kaul, Julia Steger, Julia Hagauer, Andreas Denner, Patricio Ferrer Murguia, Elisabeth Taudes, Bob Zimmermann, Robert Reischl, Patrick R. H. Steinmetz, Ulrich Technau   +11 more
doaj   +1 more source

Characterization of RNA interference in the model cnidarian Nematostella vectensis reveals partial target silencing but lack of small RNA amplification

bioRxiv
RNA interference (RNAi) is a sequence-specific mRNA degradation mechanism, which serves as an antiviral pathway by processing viral double-stranded RNA (dsRNA) into short interfering RNAs (siRNAs), leading to virus destruction.
Yael Admoni, Magda Lewandowska, R. Aharoni, Junchao Shi, Xudong Zhang, Qi Chen, Yehu Moran   +6 more
semanticscholar   +1 more source

Functional Analysis of Ligand‐Gated Chloride Channels in a Cnidarian Sheds Light on the Evolution of Inhibitory Signaling

Advanced Science, Volume 13, Issue 41, 22 July 2026.
We uncover a large variety of putative inhibitory ligand‐gated ion channels (LGICs) in the phylum Cnidaria, the sister group to all bilaterian animals. Phylogenetic analysis suggests a complex evolutionary history of inhibitory LGICs with diverse neurotransmitter ligands.
Abhilasha Ojha, Linda Kloss, Juan D. Montenegro, Simone Albani, Audrey Ortega‐Ramírez, Mihaela Raycheva, Sylvia Joussen, Sabrina Kaul, Michèle Bachmann, Lisa Huf, Günther Schmalzing, Alison G. Cole, Ulrich Technau, Stefan Gründer   +13 more
wiley   +1 more source

Nematostella vectensis, an Emerging Model for Deciphering the Molecular and Cellular Mechanisms Underlying Whole-Body Regeneration

Cells, 2021
The capacity to regenerate lost or injured body parts is a widespread feature within metazoans and has intrigued scientists for centuries. One of the most extreme types of regeneration is the so-called whole body regenerative capacity, which enables ...
Eric Röttinger
doaj   +1 more source