Results 11 to 20 of about 4,943 (209)

The Unique Antimicrobial Recognition and Signaling Pathways in Tardigrades with a Comparison Across Ecdysozoa [PDF]

G3: Genes, Genomes, Genetics, 2020
Tardigrades are microscopic animals known to withstand unfavorable abiotic conditions. These animals are also constantly exposed to biotic stresses, including parasites and internal microbiomes.
Marc A. Mapalo, Kazuharu Arakawa, Caitlin M. Baker, Dennis K. Persson, Denise Mirano-Bascos, Gonzalo Giribet   +5 more
doaj   +3 more sources

Hepatincolaceae (Alphaproteobacteria) are Distinct From Holosporales and Independently Evolved to Associate With Ecdysozoa

Environmental Microbiology, Volume 27, Issue 1, January 2025.
The main differences between the ‘Ca. Hepatincolaceae’ and the Holosporales are their habitats and modes of existence. The former are non‐motile bacteria that exist extracellularly in the host gut lumen, associating with microvilli, while the latter are intracellular bacteria, primarily hosted by protists such as amoebae and ciliates, and often possess
Michele Castelli, Leandro Gammuto, Diona Podushkina, Matteo Vecchi, Tiziana Altiero, Emanuela Clementi, Roberto Guidetti, Lorena Rebecchi, Davide Sassera   +8 more
wiley   +4 more sources

An Increase in Animal Diversity was Facilitated by Ecologically-Driven Brain Complexity Throughout the Cambrian. [PDF]

Bioessays
The Brain‐First Hypothesis suggests that the Cambrian transition from animals with simple body plans and simple brains to more complex animals was driven by a selection for brains with increased neural processing, following increased ecological complexity, and the networks underlying brain development were co‐opted to pattern other complex systems ...
Chipman AD.
europepmc   +2 more sources

Evolution of DNA Methylation Across Ecdysozoa [PDF]

Journal of Molecular Evolution, 2021
Abstract DNA methylation is a crucial, abundant mechanism of gene regulation in vertebrates. It is less prevalent in many other metazoan organisms and completely absent in some key model species, such as Drosophila melanogaster and Caenorhabditis elegans
Jan Engelhardt, Oliver Scheer, Peter F. Stadler, Sonja J. Prohaska   +3 more
openaire   +5 more sources

Evolution of the Cdk4/6-Cdkn2 system in invertebrates. [PDF]

Genes Cells
Hypothesis on the evolution of the Cdkn2 locus. (a) Loss of Cdkn2 occurred multiple times. (b) Evolution of microsynteny at the Cdkn2 locus. Cdkn2e is a hypothetical transient gene. Abstract The cell cycle is driven by cyclin‐dependent kinases (Cdks). The decision whether the cell cycle proceeds is made during G1 phase, when Cdk4/6 functions.
Yuki S, Sasaki S, Yamamoto Y, Murakami F, Sakata K, Araki I.   +5 more
europepmc   +2 more sources

20 years of Zootaxa: Tardigrada (Ecdysozoa: Panarthropoda) [PDF]

Zootaxa, 2021
Over the last two decades, Zootaxa has hosted nearly 200 papers concerning tardigrade taxonomy, systematics, phylogeny, and evolution. A total of 160 researchers from all continents (except the Antarctic) published descriptions of almost 200 new taxa, mostly species, but also genera and higher taxonomic ranks, such as families and superfamilies.
SANDRA J. MCINNES, ASLAK JØRGENSEN, ŁUKASZ MICHALCZYK   +2 more
openaire   +6 more sources

A first look at the biodiversity of Loricifera in the southern Gulf of Mexico

Frontiers in Marine Science, 2022
Loricifera is a group of marine, meiobenthic invertebrates of microscopic size that are found worldwide. The Loriciferan fauna of the Southern Gulf of Mexico (SGM) remains unknown.
Ricardo Cardoso Neves, Reinhardt Møbjerg Kristensen, Axayacatl Rocha-Olivares, Gerardo Rivas   +3 more
doaj   +1 more source

Expression of Distal-less, dachshund, and optomotor blind in Neanthes arenaceodentata (Annelida, Nereididae) does not support homology of appendage-forming mechanisms across the Bilateria [PDF]

, 2010
The similarity in the genetic regulation of arthropod and vertebrate appendage formation has been interpreted as the product of a plesiomorphic gene network that was primitively involved in bilaterian appendage development and co-opted to build ...
A Abzhanov, A Caracciolo, A Hejnol, A Hidalgo, A Horner, A Minelli, A Minelli, A Saudemont, A Schmidt-Rhaesa, A Wallberg, AD Chipman, AS Denes, B Hausdorf, B Mittmann, B Prud’homme, B Rhode, C Nielsen, Christopher J. Winchell, CJ Tabin, CJ Winchell, CL Hughes, CM Heuer, CM Heuer, CW Dunn, D Arendt, DA Dorsett, DA Dorsett, David K. Jacobs, DK Jacobs, DK Jacobs, DR Angelini, DR Angelini, DR Maddison, DW Golding, DW Stock, E Abouheif, EC Seaver, EC Seaver, F Ronquist, G Aspöck, G Balavoine, G Campbell, G Giribet, G Mardon, G Panganiban, G Panganiban, G Panganiban, G Scholtz, G Scholtz, G Scholtz, GA Wray, GF Striedter, GO Pflugfelder, GP Wagner, J Felsenstein, J Mallatt, J Mallatt, J Paps, J Paps, JD Thompson, JE Smith, JH Imai, JI Hamaker, JI Pueyo, JJ Gibson-Brown, Jonathan E. Valencia, K Bell, KJ Sepp, KL Hammond, KL Hammond, KS Pappu, L Maves, L Orrhage, L Orrhage, M Kulakova, M Qiu, M Schoppmeier, MJ Bastiani, MJ Telford, N Dray, N Gorfinkiel, N Shubin, N Shubin, N-M Prpic, N-M Prpic, N-M Prpic, N-M Prpic, NJ Strausfeld, NT Takaesu, P Dollé, R Abascal, R Desper, R Janssen, R Janssen, R Kirsch, R Tomer, RF Robledo, RJ Davis, S Candiani, S Guindon, S Nissim, SB Carroll, SF Altschul, SM Cohen, SM Cohen, SM Farris, SQ Irvine, SQ Irvine, SR Martini, T Bartolomaeus, T Kojima, TA Heanue, TA Williams, TH Bullock, W Arthur, W Sewell, W Westheide, WJ Brook, WJ Dickinson, X Yang, Y Boilly-Marer, Y Inoue, Y Inoue, Y Kida, Z Kozmik, Z Kozmik   +125 more
core   +4 more sources

Rotiferan Hox genes give new insights into the evolution of metazoan bodyplans [PDF]

, 2017
The phylum Rotifera consists of minuscule, nonsegmented animals with a unique body plan and an unresolved phylogenetic position. The presence of pharyngeal articulated jaws supports an inclusion in Gnathifera nested in the Spiralia.
Fröbius, Andreas C., Funch, Peter
core   +1 more source

Pix proteins and the evolution of centrioles.

PLoS ONE, 2008
We have made a wide phylogenetic survey of Pix proteins, which are constituents of vertebrate centrioles in most eukaryotes. We have also surveyed the presence and structure of flagella or cilia and centrioles in these organisms, as far as is possible ...
Hugh R Woodland, Andrew M Fry
doaj   +1 more source