Results 41 to 50 of about 2,599 (222)

Description of a new species of Tardigrada Hypsibius nivalis sp. nov. and new phylogenetic line in Hypsibiidae from snow ecosystem in Japan

Scientific Reports, 2022
Snow ecosystems are an important component of polar and mountainous regions, influencing water regime, biogeochemical cycles and supporting snow specific taxa.
M. Ono, N. Takeuchi, K. Zawierucha
semanticscholar   +1 more source

Multiomics study of a heterotardigrade, Echinisicus testudo, suggests the possibility of convergent evolution of abundant heat-soluble proteins in Tardigrada

BMC Genomics, 2021
Many limno-terrestrial tardigrades can enter an ametabolic state, known as anhydrobiosis, upon desiccation, in which the animals can withstand extreme environments.
Yumi Murai, M. Yagi-Utsumi, Masayuki Fujiwara, Sae Tanaka, M. Tomita, Koichi Kato, K. Arakawa   +6 more
semanticscholar   +1 more source

Time-series transcriptomic screening of factors contributing to the cross-tolerance to UV radiation and anhydrobiosis in tardigrades

BMC Genomics, 2022
Background Tardigrades are microscopic animals that are capable of tolerating extreme environments by entering a desiccated state of suspended animation known as anhydrobiosis.
Yuki Yoshida, Tadashi Satoh, Chise Ota, Sae Tanaka, Daiki D. Horikawa, Masaru Tomita, Koichi Kato, Kazuharu Arakawa   +7 more
doaj   +1 more source

Terrestrial Tardigrada (Water Bears) of the Słowiński National Park (Northern Poland)

Diversity
In this paper, samples of mosses, lichens and cryptogams (mosses mixed with lichens) collected from Słowiński National Park (northern Poland) were studied for water bears (Tardigrada). In total, 27 tardigrade taxa were identified: 21 to the species level,
T. Bartylak, P. Kayastha, A. Polishchuk, M. Roszkowska, M. M. Bartylak, T. Rutkowski, M. Zacharyasiewicz, Ł. Kaczmarek   +7 more
semanticscholar   +1 more source

An integrative description of Minibiotus ioculator sp. nov. from the Republic of South Africa with notes on Minibiotus pentannulatus Londoño et al., 2017 (Tardigrada: Macrobiotidae)

Zoologischer Anzeiger, 2020
The genus Minibiotus is morphologically diverse, which may suggest its polyphyletic character. However, scarce genetic data and often also the lack of detailed morphological data currently do not allow for the verification of the relationships within ...
D. Stec, R. Kristensen, Ł. Michalczyk
semanticscholar   +1 more source

Systematics of tardigrada: A reanalysis of tardigrade taxonomy with specific reference to Guil et al. (2019)

, 2021
The Tardigrada are a clade with a disputed and complex taxonomy. The three traditional tardigrade classes are the Heterotardigrada, Eutardigrada and the dubious, monotypic Mesotardigrada.
James F. Fleming, K. Arakawa
semanticscholar   +1 more source

Phylogenetic position of two Macrobiotus species with a revisional note on Macrobiotus sottilei Pilato, Kiosya, Lisi amp; Sabella, 2012 (Tardigrada: Eutardigrada: Macrobiotidae).

Zootaxa, 2021
In a moss and lichen sample collected on the Polish coast, a new population of Macrobiotus sottilei was found. Given that the original description of M. sottilei was based solely on the morphology observed under light microscopy and measurements of a few
Y. Kiosya, Justyna Pogwizd, Y. Matsko, M. Vecchi, D. Stec   +4 more
semanticscholar   +1 more source

Integrative taxonomy supports two new species of Macrobiotus (Tardigrada: Eutardigrada: Macrobiotidae) allowing further discussion on the genus phylogeny

European Journal of Taxonomy
In this study, I describe two new species of Macrobiotus based on morphological data collected through light and scanning electron microscopy. Both species are accompanied by DNA sequences from four commonly used molecular markers (18S rDNA, 28S rDNA ...
D. Stec
semanticscholar   +1 more source

First insights into female sperm storage duration in tardigrades

Ecology and Evolution, 2022
Female sperm storage is ubiquitous in the animal kingdom and it has been shown to be linked to several evolutionary processes, from postcopulatory sexual selection to dispersal.
Matteo Vecchi, Justine Chartrain, Simo Puro, Riikka Tynkkynen, Tommi Vuori, Łukasz Michalczyk, Sara Calhim   +6 more
doaj   +1 more source

New records of deep-sea Gastrotricha and Tardigrada from Iberian and Canary Basins (Northeast Atlantic) with comments on abyssal meiofauna composition and the meiofauna paradox

The Journal of V. N. Karazin Kharkiv National University, Series "Biology"
The “meiofauna paradox” refers to the amphi-oceanic or even cosmopolitan distribution of species of this ecological group, i.e. the marine meiofauna, as opposed to their weak dispersal potential.
R. Trokhymchuk, A. Kieneke
semanticscholar   +1 more source