Results 31 to 40 of about 1,252 (113)

iso‐Fatty Acid Metabolism in Caenorhabditis elegans’ Ceramide Biosynthesis

open access: yesHelvetica Chimica Acta, Volume 106, Issue 11, November 2023., 2023
Abstract Ceramide biosynthesis and its connection to iso‐fatty acid metabolism in the model organism Caenorhabditis elegans was investigated using a combination of reverse genetics and comparative ESI‐(+)‐HR‐MSe ceramide profiling along with incorporation experiments with bacterial mutants specifically enriched with isotopically labeled branched‐chain ...
Rocío Rivera Sánchez   +8 more
wiley   +1 more source

Comparative transcriptomics reveals that a novel form of phenotypic plasticity evolved via lineage‐specific changes in gene expression

open access: yesEcology and Evolution, Volume 13, Issue 10, October 2023., 2023
We evaluated whether a novel resource polyphenism in New World spadefoot toads evolved by co‐opting mechanisms from an ancestral form of plasticity (accelerating larval development rate in response to pond drying) common in anurans using differential gene expression analysis.
Andrew J. Isdaner   +2 more
wiley   +1 more source

Genome-wide analysis of germline signaling genes regulating longevity and innate immunity in the nematode Pristionchus pacificus. [PDF]

open access: yesPLoS Pathogens, 2012
Removal of the reproductive system of many animals including fish, flies, nematodes, mice and humans can increase lifespan through mechanisms largely unknown.
Robbie Rae, Amit Sinha, Ralf J Sommer
doaj   +1 more source

Sex, bugs and Haldane's rule: the nematode genus Pristionchus in the United States

open access: yesFrontiers in Zoology, 2006
Background The nematode Pristionchus pacificus has been developed as a satellite organism in evolutionary developmental biology for comparison to Caenorhabditis elegans.
Herrmann Matthias   +2 more
doaj   +1 more source

The cGMP signaling pathway affects feeding behavior in the necromenic nematode Pristionchus pacificus. [PDF]

open access: yesPLoS ONE, 2012
The genetic tractability and the species-specific association with beetles make the nematode Pristionchus pacificus an exciting emerging model organism for comparative studies in development and behavior. P. pacificus differs from Caenorhabditis elegans (
Silvina M Kroetz   +4 more
doaj   +1 more source

Predator-secreted sulfolipids induce defensive responses in C. elegans

open access: yesNature Communications, 2018
Defensive behavioral responses can be triggered by predator-released odors. Here, the authors identified the relevant Pristionchus pacificus-released sulfolipid molecules and dissected the neural circuits underlying C. elegans response to this predator.
Zheng Liu   +10 more
doaj   +1 more source

Developmental Plasticity and Robustness of a Nematode Mouth-Form Polyphenism

open access: yesFrontiers in Genetics, 2018
In the last decade, case studies in plants and animals provided increasing insight into the molecular mechanisms of developmental plasticity. When complemented with evolutionary and ecological analyses, these studies suggest that plasticity represents a ...
Bogdan Sieriebriennikov, Ralf J. Sommer
doaj   +1 more source

Chromatin remodelling and antisense-mediated up-regulation of the developmental switch gene eud-1 control predatory feeding plasticity

open access: yesNature Communications, 2016
In the nematode Pristionchus pacificus, a developmental switch, the sulfatase eud-1, controls mouth-form plasticity. Here, the authors show that mutations in two conserved histone modifying enzymes mimic the eud-1 phenotype, in part mediated by an ...
Vahan Serobyan   +7 more
doaj   +1 more source

Computational archaeology of the Pristionchus pacificus genome reveals evidence of horizontal gene transfers from insects

open access: yesBMC Evolutionary Biology, 2011
Background The recent sequencing of nematode genomes has laid the basis for comparative genomics approaches to study the impact of horizontal gene transfer (HGT) on the adaptation to new environments and the evolution of parasitism.
Sommer Ralf J, Rödelsperger Christian
doaj   +1 more source

Two new Species of Pristionchus (Nematoda: Diplogastridae) include the Gonochoristic Sister Species of P. fissidentatus

open access: yesJournal of Nematology, 2019
The genus Pristionchus (Kreis, 1932) consists of more than 30 soil nematode species that are often found in association with scarab beetles. Three major radiations have resulted in the “maupasi species group” in America, the “pacificus species group” in ...
Herrmann Matthias   +5 more
doaj   +1 more source

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