In:
PLOS Neglected Tropical Diseases, Public Library of Science (PLoS), Vol. 16, No. 6 ( 2022-6-30), p. e0010543-
Kurzfassung:
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.
Materialart:
Online-Ressource
ISSN:
1935-2735
DOI:
10.1371/journal.pntd.0010543
DOI:
10.1371/journal.pntd.0010543.g001
DOI:
10.1371/journal.pntd.0010543.g002
DOI:
10.1371/journal.pntd.0010543.g003
DOI:
10.1371/journal.pntd.0010543.g004
DOI:
10.1371/journal.pntd.0010543.g005
DOI:
10.1371/journal.pntd.0010543.g006
DOI:
10.1371/journal.pntd.0010543.g007
DOI:
10.1371/journal.pntd.0010543.g008
DOI:
10.1371/journal.pntd.0010543.t001
DOI:
10.1371/journal.pntd.0010543.t002
DOI:
10.1371/journal.pntd.0010543.s001
DOI:
10.1371/journal.pntd.0010543.s002
Sprache:
Englisch
Verlag:
Public Library of Science (PLoS)
Publikationsdatum:
2022
ZDB Id:
2429704-5
Permalink