Results 11 to 20 of about 2,733 (168)
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 +5 more
doaj +3 more sources
ParaHox Genes Revisited: From Gut Patterning to Integrated Axial and Neural Organization in Rotifera. [PDF]
J Exp Zool B Mol Dev EvolIn rotifers, ParaHox genes show a dispersed genomic organization, with Xlox absent across gnathiferans. Exclusive neuronal expression of Gsx and Cdx reveals that ancestral ParaHox genes coordinated neural and epithelial development beyond gut patterning, suggesting an integrated role in early bilaterian body plan organization.
Fröbius AC, Mark Welch DB, Herlyn H.
europepmc +2 more sources
An Increase in Animal Diversity was Facilitated by Ecologically-Driven Brain Complexity Throughout the Cambrian. [PDF]
BioessaysThe 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 +3 more
openaire +6 more sources
Evolution of the Cdk4/6-Cdkn2 system in invertebrates. [PDF]
Genes CellsHypothesis 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 +5 more
europepmc +2 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 +3 more
doaj +1 more source
20 years of Zootaxa: Tardigrada (Ecdysozoa: Panarthropoda)
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 +2 more
openaire +8 more sources
Investigating Low-Temperature Stress Responses in Crustacea Aquatic Species Through Comparative Transcriptomics. [PDF]
Evol ApplABSTRACT Crustaceans, such as shrimp and crabs, are pivotal to global aquaculture, yet their productivity is severely impacted by low‐temperature stress. This study employs comparative transcriptomic and genomic analyses to elucidate the molecular mechanisms underlying crustacean responses to cold stress across five economically significant species ...
Chen Y +7 more
europepmc +2 more sources
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
The evolutionary position of nematodes
BMC Evolutionary Biology, 2002 Background The complete genomes of three animals have been sequenced by global research efforts: a nematode worm (Caenorhabditis elegans), an insect (Drosophila melanogaster), and a vertebrate (Homo sapiens).
Gojobori Takashi +3 more
doaj +1 more source