Distinct gut microbial communities and functional predictions in divergent ophiuroid species: host differentiation, ecological niches, and adaptation to cold-water habitats [PDF]
Microbiology Spectrum, 2023 Gastrointestinal microorganisms play a crucial role in host survival and adaptation, but information on host-specific selection or environmental factors that shape the microbiome in natural populations is limited. In this study, we employed 16S rRNA gene
Yue Dong +7 more
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Gut Microbial Composition and Diversity in Four Ophiuroid Species: Divergence Between Suspension Feeder and Scavenger and Their Symbiotic Microbes [PDF]
Frontiers in Microbiology, 2021 Gut microbiota have important roles in the survival and adaptation of the host. Ophiuroids, as the worldwide dominant benthos, have ecological roles in benthic–pelagic coupling in the sea floor.
Yue Dong +13 more
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Earliest known ophiuroids from high palaeolatitude, southern Gondwana, recovered from the Pragian to earliest Emsian Baviaanskloof Formation (Table Mountain Group, Cape Supergroup) South Africa. [PDF]
PLoS ONE, 2023 For the first time, ophiuroids have been found in South African strata predating the lowermost Bokkeveld Group. These comprise natural moulds and casts from two localities in the 'upper unit' of the Baviaanskloof Formation (Table Mountain Group).
Caitlin Reddy +3 more
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Ophiuroids discovered in the middle triassic hypersaline environment. [PDF]
PLoS ONE, 2012 Echinoderms have long been considered to be one of the animal phyla that is strictly marine. However, there is growing evidence that some recent species may live in either brackish or hypersaline environments.
Mariusz A Salamon +4 more
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Chromosome-level genome assembly and single-cell analysis unveil molecular mechanisms of arm regeneration in the ophiuroid Ophiura sarsii vadicola [PDF]
Genome BiologyBackground Ophiuroids, belonging to Ophiuroidea in Echinodermata, possess remarkable regenerative capacities in their arms, relying on cellular recruitment and de-differentiation.
Qin-Zeng Xu +14 more
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Antero-posterior patterning in the brittle star Amphipholis squamata and the evolution of echinoderm body plans [PDF]
EvoDevoAlthough 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
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Mitochondrial phylogeny of the brittle star genus Ophioderma [PDF]
Scientific Reports, 2022 We reconstructed the mitochondrial phylogeny of the species of the brittle star genus Ophioderma, using sequences of the Cytochrome Oxidase I gene (COI) to address four questions: (i) Are the species of Ophioderma described on morphological evidence ...
H. A. Lessios, Gordon Hendler
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Integrative species delimitation in the common ophiuroid Ophiothrix angulata (Echinodermata: Ophiuroidea): insights from COI, ITS2, arm coloration, and geometric morphometrics [PDF]
PeerJ, 2023 Ophiothrix angulata (Say, 1825) is one of the most common and well-known ophiuroids in the Western Atlantic, with a wide geographic and bathymetric range. The taxonomy of this species has been controversial for a century because of its high morphological
Yoalli Quetzalli Hernández-Díaz +5 more
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Shared regulatory function of non-genomic thyroid hormone signaling in echinoderm skeletogenesis [PDF]
EvoDevoThyroid hormones are crucial regulators of metamorphosis and development in bilaterians, particularly in chordate deuterostomes. Recent evidence suggests a role for thyroid hormone signaling, principally via 3,5,3′,5′-Tetraiodo-L-thyronine (T4), in the ...
Elias Taylor +2 more
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Natural Product Communications, 2016 The action of seven polyhydroxylated sterol mono- and disulfates ( 1-7 ), isolated from ophiuroids, on innate and adaptive immunity was examined in in vitro and in vivo experiments.
Sergey N. Fedorov, Valentin Stonik
exaly +2 more sources