Results 91 to 100 of about 5,403 (156)

Ancient gene duplications have shaped developmental stage-specific expression in Pristionchus pacificus [PDF]

open access: yesBMC Evolutionary Biology, 2015
Abstract Background The development of multicellular organisms is accompanied by gene expression changes in differentiating cells. Profiling stage-specific expression during development may reveal important insights into gene sets that contributed to the morphological diversity across the animal kingdom.
Baskaran, P.   +6 more
openaire   +6 more sources

The role of plasticity and stochasticity in coexistence

open access: yesEcology Letters, Volume 27, Issue 2, February 2024.
Phenotypic plasticity, which is widespread in nature, can profoundly affect the composition of an ecological assembly. We present an integrative theoretical–experimental framework using the nematode plasticity model Pristionchus pacificus to predict how diet‐induced polyphenism can result in exclusion and/or coexistence. Abstract Species coexistence in
Ata Kalirad, Ralf J. Sommer
wiley   +1 more source

Pristionchus.org: a genome-centric database of the nematode satellite species Pristionchus pacificus [PDF]

open access: yesNucleic Acids Research, 2007
Comparative studies have been of invaluable importance to the understanding of evolutionary biology. The evolution of developmental programs can be studied in nematodes at a single cell resolution given their fixed cell lineage. We have established Pristionchus pacificus as a major satellite organism for evolutionary developmental biology relative to ...
Dieterich, C.   +3 more
openaire   +4 more sources

The Role of Epigenetic Switches in Polyphenism Control: Implications from a Nematode Model for the Developmental Regulation of Alternative Phenotypes

open access: yesBiology
Polyphenisms, the capability of organisms to form two or more alternative phenotypes in response to environmental variation, are prevalent in nature. However, associated molecular mechanisms and potential general principles of polyphenisms among major ...
Sara Wighard, Ralf J. Sommer
doaj   +1 more source

Stochastic and conditional regulation of nematode mouth-form dimorphisms

open access: yesFrontiers in Ecology and Evolution, 2016
Integrative research at the interphase between ecology, developmental, and evolutionary biology increasingly highlights the importance of phenotypic plasticity, the property of a single genotype to produce different phenotypes depending on environmental ...
Ralf J Sommer, Vladislav eSusoy
doaj   +1 more source

A host beetle pheromone regulates development and behavior in the nematode Pristionchus pacificus

open access: yeseLife, 2014
Nematodes and insects are the two most speciose animal phyla and nematode–insect associations encompass widespread biological interactions. To dissect the chemical signals and the genes mediating this association, we investigated the effect of an ...
Jessica K Cinkornpumin   +7 more
doaj   +1 more source

Analysis of meiosis in Pristionchus pacificus reveals plasticity in homolog pairing and synapsis in the nematode lineage

open access: yesbioRxiv, 2019
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
semanticscholar   +1 more source

Computational and phylogenetic validation of nematode horizontal gene transfer

open access: yesBMC Biology, 2011
Sequencing of expressed genes has shown that nematodes, particularly the plant-parasitic nematodes, have genes purportedly acquired from other kingdoms by horizontal gene transfer.
Bird David, Scholl Elizabeth H
doaj   +1 more source

Environmental variables explain genetic structure in a beetle-associated nematode.

open access: yesPLoS ONE, 2014
The distribution of a species is a complex expression of its ecological and evolutionary history and integrating population genetic, environmental, and ecological data can provide new insights into the effects of the environment on the population ...
Angela McGaughran   +2 more
doaj   +1 more source

Two independent sulfation processes regulate mouth-form plasticity in the nematode Pristionchus pacificus

open access: yesDevelopment, 2018
Sulfation of biomolecules, like phosphorylation, is one of the most fundamental and ubiquitous biochemical modifications with important functions during detoxification.
S. Namdeo   +5 more
semanticscholar   +1 more source

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