Two New Species of Pristionchus (Nematoda: Diplogastridae) Support the Biogeographic Importance of Japan for the Evolution of the Genus Pristionchus and the Model System P. pacificus

@inproceedings{Kanzaki2013TwoNS,
  title={Two New Species of Pristionchus (Nematoda: Diplogastridae) Support the Biogeographic Importance of Japan for the Evolution of the Genus Pristionchus and the Model System P. pacificus},
  author={Natsumi Kanzaki and Erik J. Ragsdale and Matthias Herrmann and Waltraud R{\"o}seler and Ralf J. Sommer},
  booktitle={Zoological science},
  year={2013}
}
Pristionchus pacificus Sommer, Carta, Kim, and Sternberg, 1996 is an important model organism in evolutionary biology that integrates developmental biology with ecology and population genetics. This species is part of a sub-complex of the genus Pristionchus that is considered to have originated in East Asia. Here, we describe two new species of Pristionchus, P. maxplancki and P. quartusdecimus, which were isolated from beetles in Japan, supporting the hypothesis that a region including Japan is… 
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References

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TLDR
Three new species of Pristionchus (P. exspectatus, P. arcanus, and P. japonicus) are described from Japan, and all three new species are distinguished from P. pacificus by having a gonochoristic instead of hermaphroditic mode of reproduction.
The Nematode Pristionchus pacificus (Nematoda: Diplogastridae) Is Associated with the Oriental Beetle Exomala orientalis (Coleoptera: Scarabaeidae) in Japan
Abstract Pristionchus pacificus has been developed as a nematode satellite organism in evolutionary developmental biology. Detailed studies of vulva development revealed multiple differences in
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TLDR
A robust phylogeny of all 18 available Pristionchus species based on a set of 27 ribosomal protein genes encompassing a total of 10,971 bp indicates that all hermaphroditic species have arisen independently within the genus Pristonchus.
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TLDR
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TLDR
Two new species of stenostomatous cheilostom, isolated from soil in Nepal and Japan, are described, recognized as basal within the genus Pristionchus fissidentatus and occupied an important position for macroevolutionary studies that center on the model P. pacificus.
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TLDR
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TLDR
Morphological and molecular evidence support the new species as being close to P. elegans, which was previously the most basal known species of the genus Pristionchus.
Parapristionchus giblindavisi n. gen., n. sp. (Rhabditida: Diplogastridae) isolated from stag beetles (Coleoptera: Lucanidae) in Japan
TLDR
Discovery and description of a close sister group to Pristionchus, a model biological system, enables character polarisation in macroevolutionary studies of Pristonchus nematodes.
Multi locus analysis of Pristionchus pacificus on La Réunion Island reveals an evolutionary history shaped by multiple introductions, constrained dispersal events and rare out‐crossing
TLDR
periodic out‐crossing generates admixture between genetically diverse lineages, creating a diverse array of allelic combinations likely to increase the evolutionary potential of the species and facilitate adaptation to local environments and beetle hosts.
Sex, bugs and Haldane's rule: the nematode genus Pristionchus in the United States
TLDR
The Pristionchus – beetle association provides a powerful tool for studying biodiversity, biogeography, speciation and species invasion on a global scale and suggests that P. uniformis was introduced together with its beetle vector.
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