Description of Pristionchus endotocus n. sp., a new obligately bagging androdioecious species from the Philippines
References
- Dieterich, C., Clifton, S. W., Schuster, L., Chinwalla, A., Delehaunty, K., Dinkelacker, I., Fulton, L., Fulton, R., Godfrey, J., Minx, P., Mitreva, M., Roeseler, W., Tian, H., Witte, H., Yang, S.-P., Wilson, R. K. and Sommer, R. J. 2008. The Pristionchus pacificus genome provides a unique perspective on nematode lifestyle and parasitism. Nature Genetics 40(10):1193–1198. https://doi.org/10.1038/ng.227
- Edgar, R. C. 2004. MUSCLE: Multiple sequence alignment with high accuracy and high throughput. Nucleic Acids Research 32(5):1792–1797. https://doi.org/10.1093/nar/gkh340
- Eisenback, J. and Hunt, D. J. 1986. Handling, fixing, staining and mounting nematodes. Pp. 59–80 in J. F. Southey, ed. Methods for work with plant and soil nematodes. London: Her Majesty’s Stationary Office.
- Ekseth, O. K., Kuiper, M. and Mironov, V. 2014. orthAgogue: An agile tool for the rapid prediction of orthology relations. Bioinformatics 30(5):734–736. https://doi.org/10.1093/bioinformatics/btt582
- Fonderie P., Steel H., Moens T. and Bert W. 2013. Experimental induction of intraspecific morphometric variability in a single population of Halicephalobus cf. gingivalis may surpass total interspecific variability. Nematology 15:529–544. https://doi.org/10.1163/15685411-00002699
- Grabherr, M. G., Haas, B. J., Yassour, M., Levin, J. Z., Thompson, D. A., Amit, I., Adiconis, X., Fan, L., Raychowdhury, R., Zeng, Q., Chen, Z., Mauceli, E., Hacohen, N., Gnirke, A., Rhind, N., di Palma, F., Birren, B. W., Nusbaum, C., Lindblad-Toh, K., Friedman, N. and Regev, A. 2011. Full-length transcriptome assembly from RNA-Seq data without a reference genome. Nature Biotechnology 29(7):644–652. https://doi.org/10.1038/nbt.1883
- Herrmann M., Mayer W. E. and Sommer R. J. 2006. Nematodes of the genus Pristionchus are closely associated with scarab beetles and the Colorado potato beetle in Western Europe. Zoology 109:96–108. https://doi.org/10.1016/j.zool.2006.03.001
- Herrmann M., Weiler C., Rödelsperger C., Kanzaki N. and Sommer R. J. 2016. Two new Pristionchus species (Nematoda: Diplogastridae) from Taiwan are part of a species-cluster representing the closest known relatives of the model organism P. pacificus. Zoological Studies 55(48):e48. https://doi.org/10.6620/ZS.2016.55-48
- Herrmann, M., Kanzaki, N., Weiler, C., Theam, P., Rödelsperger, C. and Sommer, R. 2024. Description of two new Pristionchus species from South Korea. Journal of Nematology 56(1):20240032–20240032.
- Igreja, C., Loschko, T., Schäfer, A., Sharma, R., Quiobe, S. P., Aloshy, E., Witte, H. and Sommer, R. J. 2022. Application of ALFA-tagging in the nematode model organisms Caenorhabditis elegans and Pristionchus pacificus. Cells, 11(23):3875.
- Kanzaki N., Ragsdale E. J., Herrmann M., Mayer W. E. and Sommer R. J. 2012. Description of three Pristionchus species (Nematoda: Diplogastridae) from Japan that form a cryptic species complex with the model organism P. pacificus. Zoological Science 29:403–417. https://doi.org/10.2108/zsj.29.403
- Kanzaki, N. 2013. Simple methods for morphological observation of nematodes. Nematological Research 43:15–17. https://doi.org/10.3725/jjn.43.15
- Kanzaki, N., Fujimori, Y., Ekino, T. and Degawa, Y. 2024. Pristionchus seladoniae n. sp. (Diplogastridae) isolated from a eusocial soil-dwelling bee, Halictus (Seladonia) aerarius, in Nagano, Japan. Nematology 26(6):621–645.
- Kanzaki, N., Herrmann, M., Weiler, C., Röseler, W., Theska, T., Berger, J., Rödelsperger, C. and Sommer, R. J. 2021. Nine new Pristionchus (Nematoda: Diplogastridae) species from China. Zootaxa 4943(1):1–66. https://doi.org/10.11646/zootaxa.4943.1.1
- Kanzaki, N., Ragsdale, E. J., Herrmann, M., Mayer, W. E. and Sommer, R. J. 2012. Description of three nematode species from Japan, Pristionchus exspectatus n. sp., P. arcanus n. sp., and P. japonicus n. sp., which form a cryptic species complex including the model organism P. pacificus (Diplogastridae). Zoological Science 29:403–417. https://doi.org/10.2108/zsj.29.403
- Kanzaki, N., Ragsdale, E. J., Herrmann, M., Susoy, V. and Sommer, R. J. 2013. Two androdioecious and one dioecious new species of Pristionchus (Nematoda: Diplogastridae): New reference points for the evolution of reproductive mode. Journal of Nematology 45:172–194.
- Lightfoot, J. W., Dardiry, M., Kalirad, A., Giaimo, S., Eberhardt, G., Witte, H., Wilecki, M., Rödelsperger, C., Traulsen, A. and Sommer, R. J. 2021. Sex or cannibalism: Polyphenism and kin recognition control social action strategies in nematodes. Science Advances 7(35):eabg8042.
- Merrill, J. H. and Ford, L. 1916. Life history and habits of two new nematodes parasitic on insects. Journal of Agricultural Research 6:115.
- Ragsdale E. J., Kanzaki N. and Herrmann M. 2015. Taxonomy and natural history: the genus Pristionchus. Pp. 77–120, Vol. 11 in R. J. Sommer, D. J. Hunt and R. N. Perry, eds. Pristionchus pacificus – a nematode model for comparative and evolutionary biology – Nematology Monographs and Perspectives. Leiden: Brill.
- Ragsdale E., Kanzaki N., Roeseler W., Herrmann M. and Sommer R. J. 2013. Three new species of Pristionchus (Nematoda: Diplogastridae) show morphological divergence through evolutionary intermediates of a novel feeding polymorphism. Zoological Journal of the Linnean Society 168:671–698. https://doi.org/10.1111/zoj.12041
- Ragsdale, E. J. 2015. Mouth dimorphism and the evolution of novelty and diversity. Pp. 301–329, Vol. 11 in R. J. Sommer, D. J. Hunt and R. N. Perry, eds. Pristionchus pacificus – a nematode model for comparative and evolutionary biology – Nematology Monographs and Perspectives. Leiden: Brill.
- Rödelsperger, C., Meyer, J. M., Prabh, N., Lanz, C., Bemm, F. and Sommer, R. J. 2017. Single-molecule sequencing reveals the chromosome-scale genomic architecture of the nematode model organism Pristionchus pacificus. Cell Reports 21:834–844.
- Rödelsperger, C., Röseler, W., Athanasouli, M., Wighard, S., Herrmann, M. and Sommer, R. J. 2024. Genome assembly of the nematode Rhabditoides inermis from a complex microbial community. Genome Biology and Evolution 16(11). https://doi.org/10.1093/gbe/evae230
- Rödelsperger, C., Röseler, W., Prabh, N., Yoshida, K., Weiler, C., Herrmann, M. and Sommer, R. J. 2018. Phylotranscriptomics of Pristionchus nematodes reveals parallel gene loss in six hermaphroditic lineages. Current Biology 28(19):3123–3127.
- Schlager, B., Wang, X., Braach, G. and Sommer, R. J. 2009. Molecular cloning of a dominant roller mutant and establishment of DNA-mediated transformation in the nematode model Pristionchus pacificus. Genesis 47:300–304.
- Sommer R. J., Carta L. K., Kim S. Y. and Sternberg P. W. 1996. Morphological, genetic and molecular description of Pristionchus pacificus n. sp. (Nematoda: Neodiplogastridae). Fundamental and Applied Nematology 19:511–521.
- Sommer, R. J. 2015. Integrative evolutionary biology and mechanistic approaches in comparative biology. Pp. 19–41, Vol. 11 in R. J. Sommer, D. J. Hunt and R. N. Perry, eds. Pristionchus pacificus – a nematode model for comparative and evolutionary biology – Nematology Monographs and Perspectives. Leiden: Brill.
- Stamatakis A. 2014. RAxML version 8: A tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics 30(9):1312–1313. https://doi.org/10.1093/bioinformatics/btu033
- Sudhaus, W., & Fürst von Lieven, A. 2003. A phylogenetic classification and catalogue of the Diplogastridae (Secernentea, Nematoda). Journal of Nematode Morphology and Systematics 6(1):43–90.
- Susoy, V., Herrmann, M., Kanzaki, N., Kruger, M., Nguyen, C. N., Rödelsperger, C., Röseler, W., Weiler, C., Giblin-Davis R. M., Ragsdale, E. J. and Sommer, R. J. 2016. Large-scale diversification without genetic isolation in nematode symbionts of figs. Science Advances 2(1):e1501031.
- Theam, P., Kanzaki, N., Herrmann, M., Weiler, C., Rödelsperger, C. and Sommer, R. J. 2025. Pristionchus kravanhensis n. sp., the first Pristionchus species reported from Cambodia. Nematology 1(aop):1–13. https://doi.org/10.1163/15685411-bja10413
- Tian, H., Schlager, B., Xiao, H. and Sommer, R. J. 2008. Wnt signaling by differentially expressed Wnt ligands induces vulva development in Pristionchus pacificus. Current Biology 18:142–146.
- Vigne, P., Gimond, C., Ferrari, C., Vielle, A., Hallin, J., Pino-Querido, A., El Mouridi S., Mignerot L., Frøkjær-Jensen C., Boulin, T., Teotónio H. and Braendle, C. 2021. A single-nucleotide change underlies the genetic assimilation of a plastic trait. Science Advances 7(6):eabd9941.
- Witte, H., Moreno, E., Rödelsperger, C., Kim, J., Kim, J.-S., Streit, A. and Sommer, R. J. 2015. Gene inactivation using the CRISPR/Cas9 system in the nematode Pristionchus pacificus. Development Genes and Evolution 225:55–62.
- Yoshida, K., Rödelsperger, C., Röseler, W., Riebesell, M., Sun, S., Kikuchi, T. and Sommer, R. J. 2023. Chromosome fusions repatterned recombination rate and facilitated reproductive isolation during Pristionchus nematode speciation. Nature Ecology Evolution 7(3):424–439.
- Yoshida, K., Witte, H., Hatashima, R., Sun, S., Kikuchi, T., Röseler, W. and Sommer, R. J. 2024. Rapid chromosome evolution and acquisition of thermosensitive stochastic sex determination in nematode androdioecious hermaphrodites. Nature Communications 15(1):9649. https://doi.org/10.1038/s41467-024-53854-6
Language: English
Page range: 78 - 93
Submitted on: Dec 25, 2025
Accepted on: Mar 13, 2026
Published on: Apr 28, 2026
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Related subjects:
© 2026 Berke Güner, Natsumi Kanzaki, Christian Weiler, Christian Rödelsperger, Nanette Hope N. Sumaya, Ralf J. Sommer, Matthias Herrmann, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.