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Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan

The Culex vishnui subgroups, particularly Culex tritaeniorhynchus, are considered the primary vectors of the Japanese encephalitis virus (JEV) in Asia. Recent molecular phylogenetic analyses of JEV isolates from Asian countries have shown that JEVs with diverse genetic variants are present in Asia....

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Autores principales: Arai, Satoru, Kuwata, Ryusei, Higa, Yukiko, Maekawa, Yoshihide, Tsuda, Yoshio, Roychoudhury, Sudipta, Bertuso, Arlene Garcia, Phong, Tran Vu, Yen, Nguyen Thi, Etoh, Tomoki, Otuka, Akira, Matsumura, Masaya, Nabeshima, Takeshi, Taya, Keiko Tanaka, Okabe, Nobuhiko, Kobayashi, Mutsuo, Sawabe, Kyoko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9278767/
https://www.ncbi.nlm.nih.gov/pubmed/35771889
http://dx.doi.org/10.1371/journal.pntd.0010543
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author Arai, Satoru
Kuwata, Ryusei
Higa, Yukiko
Maekawa, Yoshihide
Tsuda, Yoshio
Roychoudhury, Sudipta
Bertuso, Arlene Garcia
Phong, Tran Vu
Yen, Nguyen Thi
Etoh, Tomoki
Otuka, Akira
Matsumura, Masaya
Nabeshima, Takeshi
Taya, Keiko Tanaka
Okabe, Nobuhiko
Kobayashi, Mutsuo
Sawabe, Kyoko
author_facet Arai, Satoru
Kuwata, Ryusei
Higa, Yukiko
Maekawa, Yoshihide
Tsuda, Yoshio
Roychoudhury, Sudipta
Bertuso, Arlene Garcia
Phong, Tran Vu
Yen, Nguyen Thi
Etoh, Tomoki
Otuka, Akira
Matsumura, Masaya
Nabeshima, Takeshi
Taya, Keiko Tanaka
Okabe, Nobuhiko
Kobayashi, Mutsuo
Sawabe, Kyoko
author_sort Arai, Satoru
collection PubMed
description The Culex vishnui subgroups, particularly Culex tritaeniorhynchus, are considered the primary vectors of the Japanese encephalitis virus (JEV) in Asia. Recent molecular phylogenetic analyses of JEV isolates from Asian countries have shown that JEVs with diverse genetic variants are present in Asia. Furthermore, some JEV strains have been found to have crossed the East China Sea and been introduced into Japan. In this study, the possibility of overseas migration of the JE vector mosquito, Cx. tritaeniorhynchus was examined from the genetic, physical, and meteorological perspectives. Molecular phylogenetic analysis was performed based on both whole coding sequences and on the barcoding region of the mitochondrial cytochrome c oxidase subunit I (COI) gene of Cx. vishnui subgroups collected from Asian countries. Culex tritaeniorhymchus was classified into two genetically independent taxa by COI sequences: the Japanese type (Ct-J), which inhabits Japan except for the Amami Islands of southern Japan, and the continental type (Ct-C), which inhabits the Asian region except for Japan. It was confirmed that approximately 10% of Cx. tritaeniorhynchus trapped during the summer in western Kyushu were Ct-C, and that they could fly for up to 38 h continuously. The meteorological analysis also confirmed that the atmospheric flow occurring over the continent coincided with the date of Ct-C capture. This is the first report showing the existence of two taxa in Cx. tritaeniorhynchus. Their physical and physiological characteristics suggest the possibility of long-distance migration from overseas regions to Japan across the East China Sea. Future efforts are expected to provide evidence to support the occurrence of long-distance migration of Cx. tritaeniorhynchus with JEV.
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spelling pubmed-92787672022-07-14 Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan Arai, Satoru Kuwata, Ryusei Higa, Yukiko Maekawa, Yoshihide Tsuda, Yoshio Roychoudhury, Sudipta Bertuso, Arlene Garcia Phong, Tran Vu Yen, Nguyen Thi Etoh, Tomoki Otuka, Akira Matsumura, Masaya Nabeshima, Takeshi Taya, Keiko Tanaka Okabe, Nobuhiko Kobayashi, Mutsuo Sawabe, Kyoko PLoS Negl Trop Dis Research Article The Culex vishnui subgroups, particularly Culex tritaeniorhynchus, are considered the primary vectors of the Japanese encephalitis virus (JEV) in Asia. Recent molecular phylogenetic analyses of JEV isolates from Asian countries have shown that JEVs with diverse genetic variants are present in Asia. Furthermore, some JEV strains have been found to have crossed the East China Sea and been introduced into Japan. In this study, the possibility of overseas migration of the JE vector mosquito, Cx. tritaeniorhynchus was examined from the genetic, physical, and meteorological perspectives. Molecular phylogenetic analysis was performed based on both whole coding sequences and on the barcoding region of the mitochondrial cytochrome c oxidase subunit I (COI) gene of Cx. vishnui subgroups collected from Asian countries. Culex tritaeniorhymchus was classified into two genetically independent taxa by COI sequences: the Japanese type (Ct-J), which inhabits Japan except for the Amami Islands of southern Japan, and the continental type (Ct-C), which inhabits the Asian region except for Japan. It was confirmed that approximately 10% of Cx. tritaeniorhynchus trapped during the summer in western Kyushu were Ct-C, and that they could fly for up to 38 h continuously. The meteorological analysis also confirmed that the atmospheric flow occurring over the continent coincided with the date of Ct-C capture. This is the first report showing the existence of two taxa in Cx. tritaeniorhynchus. Their physical and physiological characteristics suggest the possibility of long-distance migration from overseas regions to Japan across the East China Sea. Future efforts are expected to provide evidence to support the occurrence of long-distance migration of Cx. tritaeniorhynchus with JEV. Public Library of Science 2022-06-30 /pmc/articles/PMC9278767/ /pubmed/35771889 http://dx.doi.org/10.1371/journal.pntd.0010543 Text en © 2022 Arai et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Arai, Satoru
Kuwata, Ryusei
Higa, Yukiko
Maekawa, Yoshihide
Tsuda, Yoshio
Roychoudhury, Sudipta
Bertuso, Arlene Garcia
Phong, Tran Vu
Yen, Nguyen Thi
Etoh, Tomoki
Otuka, Akira
Matsumura, Masaya
Nabeshima, Takeshi
Taya, Keiko Tanaka
Okabe, Nobuhiko
Kobayashi, Mutsuo
Sawabe, Kyoko
Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan
title Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan
title_full Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan
title_fullStr Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan
title_full_unstemmed Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan
title_short Two hidden taxa in the Japanese encephalitis vector mosquito, Culex tritaeniorhynchus, and the potential for long-distance migration from overseas to Japan
title_sort two hidden taxa in the japanese encephalitis vector mosquito, culex tritaeniorhynchus, and the potential for long-distance migration from overseas to japan
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9278767/
https://www.ncbi.nlm.nih.gov/pubmed/35771889
http://dx.doi.org/10.1371/journal.pntd.0010543
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