4.2 Article

Amblyomma testudinarium infestation on a brown bear (Ursus arctos yesoensis) captured in Hokkaido, a northern island of Japan

期刊

PARASITOLOGY INTERNATIONAL
卷 80, 期 -, 页码 -

出版社

ELSEVIER IRELAND LTD
DOI: 10.1016/j.parint.2020.102209

关键词

Amblyomma testudinarium; Brown bear; Hokkaido; Mitogenome

资金

  1. JSPS KAKENHI [15H05633, 16H06429, 16K21723, 16H06431, 19H03118]
  2. Grants-in-Aid for Scientific Research [15H05633] Funding Source: KAKEN

向作者/读者索取更多资源

The research reported the discovery of a partially engorged Amblyomma testudinarium tick on a wild brown bear in Hokkaido, Japan. Genetic characterization of the specimen through complete mitochondrial genome sequencing revealed clustering with A. testudinarium from Nara, Japan, providing important insights on the distribution and host range of this tick species. This study represents the northernmost detection point of the tropical tick A. testudinarium.
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.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据