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Population genomics revealed cryptic species within host-specific zombie-ant fungi (Ophiocordyceps unilateralis).
Mol Phylogenet Evol. 2019 11; 140:106580.MP

Abstract

The identification and delimitation of species boundaries are essential for understanding speciation and adaptation processes and for the management of biodiversity as well as development for applications. Ophiocordyceps unilateralis sensu lato is a complex of fungal pathogens parasitizing Formicine ants, inducing zombie behaviors in their hosts. Previous taxonomic works with limited numbers of samples and markers led to the "one ant-one fungus" paradigm, resulting in the use of ant species as a proxy for fungal identification. Here, a population genomics study with sampling on three ant species across Thailand supported the existence of host-specific species in O. unilateralis s.l. with no footprints of long term introgression despite occasional host shifts and first-generation hybrids. We further detected genetic clusters within the previously delimited fungal species, with each little footprints of recombination, suggesting high levels of inbreeding. The clusters within each of O. camponoti-leonardi and O. camponoti-saundersi were supported by differentiation throughout the genome, suggesting they may constitute further cryptic species parasitizing the same host, challenging the one ant-one fungus paradigm. These genetic clusters had different geographical ranges, supporting different biogeographic influences between the north/center and the south of Thailand, reinforcing the scenario in which Thailand endured compartmentation during the latest Pleistocene glacial cycles.

Authors+Show Affiliations

National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; Ecologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91400 Orsay, France. Electronic address: noppol.kob@biotec.or.th.National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin Rd., Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.Ecologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91400 Orsay, France.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

31419479

Citation

Kobmoo, Noppol, et al. "Population Genomics Revealed Cryptic Species Within Host-specific Zombie-ant Fungi (Ophiocordyceps Unilateralis)." Molecular Phylogenetics and Evolution, vol. 140, 2019, p. 106580.
Kobmoo N, Mongkolsamrit S, Arnamnart N, et al. Population genomics revealed cryptic species within host-specific zombie-ant fungi (Ophiocordyceps unilateralis). Mol Phylogenet Evol. 2019;140:106580.
Kobmoo, N., Mongkolsamrit, S., Arnamnart, N., Luangsa-Ard, J. J., & Giraud, T. (2019). Population genomics revealed cryptic species within host-specific zombie-ant fungi (Ophiocordyceps unilateralis). Molecular Phylogenetics and Evolution, 140, 106580. https://doi.org/10.1016/j.ympev.2019.106580
Kobmoo N, et al. Population Genomics Revealed Cryptic Species Within Host-specific Zombie-ant Fungi (Ophiocordyceps Unilateralis). Mol Phylogenet Evol. 2019;140:106580. PubMed PMID: 31419479.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Population genomics revealed cryptic species within host-specific zombie-ant fungi (Ophiocordyceps unilateralis). AU - Kobmoo,Noppol, AU - Mongkolsamrit,Suchada, AU - Arnamnart,Nuntanat, AU - Luangsa-Ard,Janet Jennifer, AU - Giraud,Tatiana, Y1 - 2019/08/13/ PY - 2019/04/10/received PY - 2019/08/06/revised PY - 2019/08/08/accepted PY - 2019/8/17/pubmed PY - 2020/3/7/medline PY - 2019/8/17/entrez KW - Cryptic species KW - Ophiocordyceps unilateralis KW - Phylogenetic species KW - Population genomics KW - Recombination SP - 106580 EP - 106580 JF - Molecular phylogenetics and evolution JO - Mol. Phylogenet. Evol. VL - 140 N2 - The identification and delimitation of species boundaries are essential for understanding speciation and adaptation processes and for the management of biodiversity as well as development for applications. Ophiocordyceps unilateralis sensu lato is a complex of fungal pathogens parasitizing Formicine ants, inducing zombie behaviors in their hosts. Previous taxonomic works with limited numbers of samples and markers led to the "one ant-one fungus" paradigm, resulting in the use of ant species as a proxy for fungal identification. Here, a population genomics study with sampling on three ant species across Thailand supported the existence of host-specific species in O. unilateralis s.l. with no footprints of long term introgression despite occasional host shifts and first-generation hybrids. We further detected genetic clusters within the previously delimited fungal species, with each little footprints of recombination, suggesting high levels of inbreeding. The clusters within each of O. camponoti-leonardi and O. camponoti-saundersi were supported by differentiation throughout the genome, suggesting they may constitute further cryptic species parasitizing the same host, challenging the one ant-one fungus paradigm. These genetic clusters had different geographical ranges, supporting different biogeographic influences between the north/center and the south of Thailand, reinforcing the scenario in which Thailand endured compartmentation during the latest Pleistocene glacial cycles. SN - 1095-9513 UR - https://www.unboundmedicine.com/medline/citation/31419479/Population_genomics_revealed_cryptic_species_within_host_specific_zombie_ant_fungi__Ophiocordyceps_unilateralis__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1055-7903(19)30207-6 DB - PRIME DP - Unbound Medicine ER -