Results 1 to 10 of about 39,060 (269)

Two Distinct, Geographically Overlapping Lineages of the Corallimorpharian Ricordea Florida (Cnidaria: Hexacorallia: Ricordeidae) [PDF]

open access: yes, 2011
We examined the genetic variation of the corallimorpharian Ricordea florida; it is distributed throughout the Caribbean region and is heavily harvested for the marine aquarium trade. Eighty-four distinct individuals of R. florida were sequenced from four
Lado-Insua, T.   +4 more
core   +1 more source

An Evolutionarily Conserved SoxB-Hdac2 Crosstalk Regulates Neurogenesis in a Cnidarian

open access: yesCell Reports, 2017
SoxB transcription factors and histone deacetylases (HDACs) are each major players in the regulation of neurogenesis, but a functional link between them has not been previously demonstrated.
Hakima Flici   +8 more
doaj   +1 more source

Fuzzy species limits in Mediterranean gorgonians (Cnidaria, Octocorallia): inferences on speciation processes [PDF]

open access: yes, 2017
The study of the interplay between speciation and hybridization is of primary importance in evolutionary biology. Octocorals are ecologically important species whose shallow phylogenetic relationships often remain to be studied. In the Mediterranean Sea,
Anne Haguenauer   +74 more
core   +3 more sources

Distinct mechanisms underlie oral vs aboral regeneration in the cnidarian Hydractinia echinata

open access: yeseLife, 2015
Cnidarians possess remarkable powers of regeneration, but the cellular and molecular mechanisms underlying this capability are unclear. Studying the hydrozoan Hydractinia echinata we show that a burst of stem cell proliferation occurs following ...
Brian Bradshaw   +2 more
doaj   +1 more source

Contribution of Maternal and Paternal Transmission to Bacterial Colonization in Nematostella vectensis

open access: yesFrontiers in Microbiology, 2021
Microbial communities confer multiple beneficial effects to their multicellular hosts. To evaluate the evolutionary and ecological implications of the animal-microbe interactions, it is essential to understand how bacterial colonization is secured and ...
Laura Baldassarre   +6 more
doaj   +1 more source

First record of conulariids from the Tērvete Formation, Upper Devonian of Latvia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2020
Phosphatized remains belonging to conulariids have been found in the Middle Famennian (Upper Devonian) deposits of the Tērvete Formation of Latvia for the first time.
Ervīns Lukševičs
doaj   +1 more source

Statistical relationships of cnidocyst sizes in the sea anemone Oulactis muscosa (Actiniaria: Actiniidae) [PDF]

open access: yes, 2011
This study analysis the multivariate statistical relationships among cnidocyst types and tissues in terms of cnidocyst capsule size in the sea anemone O. muscosa.
Acuña, Fabian Horacio
core  

Medusan Morphospace: Phylogenetic Constraints, Biomechanical Solutions, and Ecological Consequences [PDF]

open access: yes, 2008
Medusae were the earliest animals to evolve muscle-powered swimming in the seas. Although medusae have achieved diverse and prominent ecological roles throughout the world\u27s oceans, we argue that the primitive organization of cnidarian muscle tissue ...
Ahlborn   +114 more
core   +2 more sources

Observations on the Infection by Kudoa sp. (Myxozoa, Multivalvulida) in fishes caught off Rio Grande, Rio Grande do Sul State, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2016
It is reported the parasitization of Kudoa sp. (Myxozoa, Multivalvulida) within the somatic muscles of the fish Odontesthes bonariensis (Valenciennes, 1835), Micropogonias furnieri (Desmarest, 1823) and Mugil liza Valenciennes, 1836, captured off Rio ...
Jorge Costa Eiras   +3 more
doaj   +1 more source

The enigmatic cnidarian Martsaphyton moxi gen. et sp. nov. from the Darriwilian (Middle Ordovician) of Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2020
On the basis of detailed SEM-EDS study and computer tomography scanning, the single specimen of the enigmatic Martsaphyton moxi from the Aseri Stage (Darriwilian; Middle Ordovician) of Estonia, was identified as a member of the phylum Cnidaria and ...
Oive Tinn, Olev Vinn, Leho Ainsaar
doaj   +1 more source

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