Amblyomma testudinarium infestation on a brown bear (Ursus arctos yesoensis) captured in Hokkaido, a northern island of Japan
| Autor: | Gohta Kinoshita, Nariaki Nonaka, Shohei Ogata, Mariko Sashika, Takuya Ito, Mohamed Abdallah Mohamed Moustafa, Kohei Shinjo, Ryo Nakao, Toshio Tsubota, Michito Shimozuru, Tomoki Sakiyama, Elisha Chatanga, Doaa Naguib, Wessam Mohamed Ahmed Mohamed, Kodai Kusakisako, Keita Matsuno |
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| Rok vydání: | 2021 |
| Předmět: |
Male
0301 basic medicine Mitochondrial DNA 030231 tropical medicine Zoology Tick 03 medical and health sciences 0302 clinical medicine Amblyomma Japan Animals Acari Ursus Phylogeny biology Amblyomma testudinarium 030108 mycology & parasitology Ribosomal RNA biology.organism_classification Tick Infestations Infectious Diseases Vector (epidemiology) Female Parasitology Ursidae Ixodidae |
| Zdroj: | Parasitology International. 80:102209 |
| ISSN: | 1383-5769 |
| DOI: | 10.1016/j.parint.2020.102209 |
| Popis: | The tick Amblyomma testudinarium Koch, 1844 (Acari: Ixodidae) is known as a vector of several pathogens such as Rickettsia tamurae and severe fever with thrombocytopenia syndrome (SFTS) virus. This tick species is present in many Asian countries, including Japan, where its distribution is limited to the warm areas of Kanto region and the southwestern region. The present study reports the recovery of a partially engorged A. testudinarium from a wild brown bear captured in Shari town, Hokkaido. In addition to morphological identification, the specimen was genetically characterized by the complete mitochondrial genome sequencing. The results showed that the length of the obtained mitogenome is 14,835 bp that encodes 13 protein-coding, two ribosomal RNA (rRNA) (12S and 16S), and 22 transfer RNA genes with two non-coding control regions. The phylogenetic analysis indicated that our sample clustered with A. testudinarium from Nara, Japan, but separated from A. testudinarium from China. Although the introduction of the tick through livestock transportation cannot be ruled out, the detection of A. testudinarium in Hokkaido prefecture, which is separated from the main island where A. testudinarium is present in the south, may suggest the introduction by migratory birds. This study provides important insights on the distribution and host range of A. testudinarium. This will be useful for the future taxonomic analysis of ticks based on the complete mitogenome sequencing. To our knowledge, this is the northernmost detection point of the tropical tick A. testudinarium. |
| Databáze: | OpenAIRE |
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