Serotonin Drives Predatory Feeding Behavior via Synchronous Feeding Rhythms in the Nematode Pristionchus pacificus. [PDF]
G3: Genes, Genomes, Genetics, 2017 Feeding behaviors in a wide range of animals are regulated by the neurotransmitter serotonin, although the exact neural circuits and associated mechanism are often unknown.
Ralf J Sommer, Misako Okumura
exaly +4 more sources
Analysis of meiosis in Pristionchus pacificus reveals plasticity in homolog pairing and synapsis in the nematode lineage [PDF]
eLife, 2021 Meiosis is conserved across eukaryotes yet varies in the details of its execution. Here we describe a new comparative model system for molecular analysis of meiosis, the nematode Pristionchus pacificus, a distant relative of the widely studied model ...
Regina Rillo-Bohn +11 more
doaj +2 more sources
Characterization of Heat Shock Protein Expression and Its Application to Temporal Gene Expression in the Nematode Pristionchus pacificus. [PDF]
Dev Growth DifferABSTRACT Temporal gene expression systems are widely used to examine gene functions at specific developmental stages. The heat‐inducible gene expression system, which uses a heat shock promoter with evolutionarily conserved heat shock elements, is used in temporal gene expression systems in many organisms.
Ishita Y +3 more
europepmc +2 more sources
Kin-recognition and predation shape collective behaviors in the cannibalistic nematode Pristionchus pacificus. [PDF]
PLoS Genetics, 2023 Kin-recognition is observed across diverse species forming an important behavioral adaptation influencing organismal interactions. In many species, the molecular mechanisms involved are difficult to characterize, but in the nematode Pristionchus ...
Fumie Hiramatsu, James W Lightfoot
doaj +2 more sources
High Nutritional Conditions Influence Feeding Plasticity in Pristionchus pacificus and Render Worms Non-Predatory. [PDF]
J Exp Zool B Mol Dev EvolSome nematodes exhibit mouth‐form polyphenism resulting in different feeding strategies including predation. In this study, Piskobulu and co‐workers investigate the influence of glucose supplementation on mouth‐form expression and find that higher glucose levels render worms non‐predatory.
Piskobulu V +5 more
europepmc +2 more sources
Analysis of repeat elements in the Pristionchus pacificus genome reveals an ancient invasion by horizontally transferred transposons [PDF]
BMC Genomics, 2022 Background Repetitive sequences and mobile elements make up considerable fractions of individual genomes. While transposition events can be detrimental for organismal fitness, repetitive sequences form an enormous reservoir for molecular innovation.
Marina Athanasouli +1 more
doaj +2 more sources
Application of ALFA-Tagging in the Nematode Model Organisms Caenorhabditis elegans and Pristionchus pacificus [PDF]
Cells, 2022 The detection, manipulation and purification of proteins is key in modern life sciences studies. To achieve this goal, a plethora of epitope tags have been employed in model organisms from bacteria to humans.
Catia Igreja +7 more
doaj +2 more sources
A sulfotransferase dosage-dependently regulates mouthpart polyphenism in the nematode Pristionchus pacificus [PDF]
Nature Communications, 2018 Certain genotypes define developmental plasticity and discrete morphologies, but a mechanism as to how this arises is unclear. Here, the authors show that dosage-specific sulfotransferase (SEUD-1) expression specifies which mouthparts are expressed in ...
Linh T. Bui +2 more
doaj +2 more sources
Thousands of Pristionchus pacificus orphan genes were integrated into developmental networks that respond to diverse environmental microbiota. [PDF]
PLoS Genetics, 2023 Adaptation of organisms to environmental change may be facilitated by the creation of new genes. New genes without homologs in other lineages are known as taxonomically-restricted orphan genes and may result from divergence or de novo formation ...
Marina Athanasouli +4 more
doaj +2 more sources
Cell Reports, 2017 The nematode Pristionchus pacificus is an established model for integrative evolutionary biology and comparative studies with Caenorhabditis elegans.
Felix Bemm +2 more
exaly +3 more sources