Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages
Abstract The entomopathogenic genus Ophiocordyceps includes a highly diverse group of fungal species, predominantly parasitizing insects in the orders Coleoptera, Hemiptera, Hymenoptera and Lepidoptera. However, other insect orders are also parasitized by these fungi, for example the Blattodea (term...
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BMC
2021-02-01
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| Series: | IMA Fungus |
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| Online Access: | https://doi.org/10.1186/s43008-020-00053-9 |
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| author | João P. M. Araújo Mitsuru G. Moriguchi Shigeru Uchiyama Noriko Kinjo Yu Matsuura |
| author_facet | João P. M. Araújo Mitsuru G. Moriguchi Shigeru Uchiyama Noriko Kinjo Yu Matsuura |
| author_sort | João P. M. Araújo |
| collection | DOAJ |
| description | Abstract The entomopathogenic genus Ophiocordyceps includes a highly diverse group of fungal species, predominantly parasitizing insects in the orders Coleoptera, Hemiptera, Hymenoptera and Lepidoptera. However, other insect orders are also parasitized by these fungi, for example the Blattodea (termites and cockroaches). Despite their ubiquity in nearly all environments insects occur, blattodeans are rarely found infected by filamentous fungi and thus, their ecology and evolutionary history remain obscure. In this study, we propose a new species of Ophiocordyceps infecting the social cockroaches Salganea esakii and S. taiwanensis, based on 16 years of collections and field observations in Japan, especially in the Ryukyu Archipelago. We found a high degree of genetic similarity between specimens from different islands, infecting these two Salganea species and that this relationship is ancient, likely not originating from a recent host jump. Furthermore, we found that Ophiocordyceps lineages infecting cockroaches evolved around the same time, at least twice, one from beetles and the other from termites. We have also investigated the evolutionary relationships between Ophiocordyceps and termites and present the phylogenetic placement of O. cf. blattae. Our analyses also show that O. sinensis could have originated from an ancestor infecting termite, instead of beetle larvae as previously proposed. |
| format | Article |
| id | doaj-art-3ad421040eaf444fbf727b99a67c4b84 |
| institution | Kabale University |
| issn | 2210-6359 |
| language | English |
| publishDate | 2021-02-01 |
| publisher | BMC |
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| series | IMA Fungus |
| spelling | doaj-art-3ad421040eaf444fbf727b99a67c4b842025-02-02T02:04:27ZengBMCIMA Fungus2210-63592021-02-0112111710.1186/s43008-020-00053-9Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineagesJoão P. M. Araújo0Mitsuru G. Moriguchi1Shigeru Uchiyama2Noriko Kinjo3Yu Matsuura4Tropical Biosphere Research Center, University of the RyukyusOkinawa UniversityThe Japanese Society of Cordyceps ResearchThe Japanese Society of Cordyceps ResearchTropical Biosphere Research Center, University of the RyukyusAbstract The entomopathogenic genus Ophiocordyceps includes a highly diverse group of fungal species, predominantly parasitizing insects in the orders Coleoptera, Hemiptera, Hymenoptera and Lepidoptera. However, other insect orders are also parasitized by these fungi, for example the Blattodea (termites and cockroaches). Despite their ubiquity in nearly all environments insects occur, blattodeans are rarely found infected by filamentous fungi and thus, their ecology and evolutionary history remain obscure. In this study, we propose a new species of Ophiocordyceps infecting the social cockroaches Salganea esakii and S. taiwanensis, based on 16 years of collections and field observations in Japan, especially in the Ryukyu Archipelago. We found a high degree of genetic similarity between specimens from different islands, infecting these two Salganea species and that this relationship is ancient, likely not originating from a recent host jump. Furthermore, we found that Ophiocordyceps lineages infecting cockroaches evolved around the same time, at least twice, one from beetles and the other from termites. We have also investigated the evolutionary relationships between Ophiocordyceps and termites and present the phylogenetic placement of O. cf. blattae. Our analyses also show that O. sinensis could have originated from an ancestor infecting termite, instead of beetle larvae as previously proposed.https://doi.org/10.1186/s43008-020-00053-9AscomycotaHypocrealesCockroachesTermitesEntomopathogenic fungiHost-jumps |
| spellingShingle | João P. M. Araújo Mitsuru G. Moriguchi Shigeru Uchiyama Noriko Kinjo Yu Matsuura Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages IMA Fungus Ascomycota Hypocreales Cockroaches Termites Entomopathogenic fungi Host-jumps |
| title | Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages |
| title_full | Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages |
| title_fullStr | Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages |
| title_full_unstemmed | Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages |
| title_short | Ophiocordyceps salganeicola, a parasite of social cockroaches in Japan and insights into the evolution of other closely-related Blattodea-associated lineages |
| title_sort | ophiocordyceps salganeicola a parasite of social cockroaches in japan and insights into the evolution of other closely related blattodea associated lineages |
| topic | Ascomycota Hypocreales Cockroaches Termites Entomopathogenic fungi Host-jumps |
| url | https://doi.org/10.1186/s43008-020-00053-9 |
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