Results 1 to 10 of about 5,499 (220)

Primer registro de Scelidotheriinae Ameghino (Xenartha, Mylodontidae) del Piso/Edad Chasiquense (Mioceno tardío) de la Argentina [PDF]

open access: yesEstudios Geologicos, 2014
La subfamilia Scelidotheriinae constituye un grupo de milodóntidos ampliamente representados en el Cuaternario de América del Sur. Sin embargo, el registro fósil de los taxa del Neógeno es aun escaso. En este trabajo se presenta un nuevo ejemplar de esta
A. R. Miño-Boilini   +2 more
doaj   +3 more sources

Radioprotection redefined: drug discovery at the intersection of tardigrade biology and translational pharmacology [PDF]

open access: yesFrontiers in Pharmacology
Ionizing radiation inflicts lethal double-strand DNA breaks and oxidative stress that underlie acute radiation syndrome, secondary malignancies, and dose-limiting toxicity in radiotherapy; yet the conventional armamentarium of radioprotectants ...
Zhitao Cui   +4 more
doaj   +2 more sources

Lineage-specific expansions of the Dicer gene family in tardigrades [PDF]

open access: yesBMC Genomics
Background RNA interference (RNAi) is an important pathway for gene regulation and immunity. Dicer is a conserved RNAi pathway protein that is found in eukaryotes, with many species expressing multiple dicer gene copies.
Bethany Weinberg   +3 more
doaj   +2 more sources

Extensive loss of Wnt genes in Tardigrada [PDF]

open access: yesBMC Ecology and Evolution, 2021
Background Wnt genes code for ligands that activate signaling pathways during development in Metazoa. Through the canonical Wnt (cWnt) signaling pathway, these genes regulate important processes in bilaterian development, such as establishing the ...
Raul A. Chavarria   +5 more
doaj   +2 more sources

Aquatic tardigrades in Poland – a review

open access: yesLimnological Review, 2021
The diversity, distribution and ecology of aquatic Tardigrada in Poland remain poorly known. We reviewed the literature focused on tardigrades in Poland and recognized only 15 aquatic taxa which were reported from various freshwater and marine habitats ...
Kayastha Pushpalata   +3 more
doaj   +1 more source

First record of the tardigrade Echiniscus testudo (Doyère, 1840) from northeast of Iran (Heterotardigrada: Echiniscidae) [PDF]

open access: yesIranian Journal of Animal Biosystematics, 2018
Tardigrada is a phylum closely allied with the arthropods. They are small (0.05-1.20 mm), hygrophilous micrometazoans, have four pairs of lobe-like legs and are either carnivorous or feed on plant material.
farahnaz Molavi   +4 more
doaj   +1 more source

Tardigrades and oribatid mites in bryophytes from geothermally active lava fields (Krafla, Iceland) and the description of Pilatobius islandicus sp. nov. (Eutardigrada) [PDF]

open access: yesPolish Polar Research, 2018
In polar regions, apart from tundra and glaciers, geothermally active areas with elevated temperatures are important elements of ecosystems. One such geothermally active region characterized by mosaic ecosystems and vast areas covered by recent lava ...
Jakub Buda   +3 more
doaj   +1 more source

Halloween genes in panarthropods and the evolution of the early moulting pathway in Ecdysozoa [PDF]

open access: yesRoyal Society Open Science, 2018
Moulting is a characteristic feature of Ecdysozoa—the clade of moulting animals that includes the hyperdiverse arthropods and less speciose groups, such as onychophorans, tardigrades and nematodes.
Isabell Schumann   +4 more
doaj   +1 more source

Integrative description of Macrobiotus porifini sp. nov. (Macrobiotidae) from Madagascar and its phylogenetic position within the hufelandi group

open access: yesThe European Zoological Journal, 2021
In this paper we applied an integrative taxonomy approach to describe a new tardigrade species from Madagascar. The description is based on morphological and morphometric data (using both light and scanning electron microscopy), combined with genetic ...
K. A. Kuzdrowska   +6 more
doaj   +1 more source

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