Convergent evolution of small molecule pheromones in Pristionchus nematodes
The small molecules that mediate chemical communication between nematodes—so-called ‘nematode-derived-modular-metabolites’ (NDMMs)—are of major interest because of their ability to regulate development, behavior, and life-history.
Chuanfu Dong +3 more
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Culture-based analysis of Pristionchus-associated microbiota from beetles and figs for studying nematode-bacterial interactions. [PDF]
The interplay with bacteria is of crucial importance for the interaction of multicellular organisms with their environments. Studying the associations between the nematode model organisms Caenorhabditis elegans and Pristionchus pacificus with bacteria ...
Nermin Akduman +2 more
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Pristionchus nematodes occur frequently in diverse rotting vegetal substrates and are not exclusively necromenic, while Panagrellus redivivoides is found specifically in rotting fruits. [PDF]
The lifestyle and feeding habits of nematodes are highly diverse. Several species of Pristionchus (Nematoda: Diplogastridae), including Pristionchus pacificus, have been reported to be necromenic, i.e.
Marie-Anne Félix +4 more
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Host-finding behaviour in the nematodePristionchus pacificus [PDF]
Costs and benefits of foraging have been studied in predatory animals. In nematodes, ambushing or cruising behaviours represent adaptations that optimize foraging strategies for survival and host finding. A behaviour associated with host finding of ambushing nematode dauer juveniles is a sit-and-wait behaviour, otherwise known as nictation.
Brown, F., D'Anna, I., Sommer, R.
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Life-History Traits of the Model Organism Pristionchus pacificus Recorded Using the Hanging Drop Method: Comparison with Caenorhabditis elegans. [PDF]
The nematode Pristionchus pacificus is of growing interest as a model organism in evolutionary biology. However, despite multiple studies of its genetics, developmental cues, and ecology, the basic life-history traits (LHTs) of P.
Patricia Gilarte +3 more
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Wnt Signaling Induces Vulva Development in the Nematode Pristionchus pacificus [PDF]
The Caenorhabditis elegans vulva is induced by a member of the epidermal growth factor (EGF) family that is expressed in the gonadal anchor cell, representing a prime example of signaling processes in animal development. Comparative studies indicated that vulva induction has changed rapidly during evolution.
Tian, H. +3 more
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iso‐Fatty Acid Metabolism in Caenorhabditis elegans’ Ceramide Biosynthesis
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
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
Operon Structure and Trans-Splicing in the Nematode Pristionchus pacificus [PDF]
In the nematode Caenorhabditis elegans, up to 15% of the genes are organized in operons. Polycistronic precursor RNAs are processed by trans-splicing at the 5' ends of genes by adding a specific trans-spliced leader. Ten different spliced leaders are known in C. elegans that differ in sequence and abundance.
Kwang-Zin, Lee, Ralf J, Sommer
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Background The nematode Pristionchus pacificus has originally been developed as a satellite organism for comparison to Caenorhabditis elegans. A 10X coverage of the whole genome of P. pacificus is available, making P.
Sommer Ralf J +2 more
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