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Hitchhiking nematodes on beetles: insights into biology, ecology and distribution of Pristionchus pacificus and its relatives

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Herrmann,  M       
Department Integrative Evolutionary Biology, Max Planck Institute for Developmental Biology, Max Planck Society;
Entomo-Nematology Group, Department Integrative Evolutionary Biology, Max Planck Institute for Developmental Biology, Max Planck Society;

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Herrmann, M. (2006). Hitchhiking nematodes on beetles: insights into biology, ecology and distribution of Pristionchus pacificus and its relatives. Talk presented at RIKEN Center for Developmental Biology: Laboratory for Developmental Genomics. Kobe Japan. 2006-07-07.


Cite as: https://hdl.handle.net/21.11116/0000-000F-3F0A-1
Abstract
The nematode Pristionchus pacificus has been established as a satellite organism to Caenorhabditis elegans. Three years ago not much had been known about the lifecycle and ecology of Pristionchus in nature. The few species and strains cultured in the lab hab been isolated from soil. There were some hints that the nematodes could be insect-associated. Field sampling could not only verify this hypothesis but led also to the isolation of hundreds of strains in more than a dozen species. Pristionchus species are necromenic i.e. resting on insects in dauer stage until the insect dies and then growing adult and reproducing, feeding on bacteria, fungi and insect tissue. However, in contrast to other Pristionchus species, Pristionchus pacificus could be found only in few cases and on various insects. The geografic origin and insect „host“ remained unknown. The closest relative of P. pacificus was isolated from japanese soil so we came to Japan to perform a large scale field screen and hopefully find our favourite model organism. Please be curious about the whole Pristionchus story and some preliminary results of the JapanFieldScreenProject!