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在加拿大检测到多种犬类Rhipicephalus复合物的物种

Sarah Myers¹, Katie Clow², Sydney DeWinter²

¹Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA.

Veterinary parasitology, regional studies and reports

|February 5, 2024

概括

多种棕色狗物种,Rhipicephalus linnaei和Rhipicephalus sanguineus sensu stricto (s.s.),现在可以在加拿大找到. 国际旅行是这些犬感染的可能原因.

科学领域:

兽医昆虫学兽医昆虫学
寄生虫学的寄生虫学
分子遗传学分子遗传学

背景情况:

棕色狗 (Rhipicephalus spp.) 是一种动物. 在全球范围内是狗的常见寄生虫.
几种Rhipicephalus物种,包括Rhipicephalus sanguineus sensu stricto (s.s.),Rhipicephalus linnaei和Rhipicephalus rutilus,在美国和加勒比地区已经建立.
在加拿大,犬类Rhipicephalus感染很少见,物种识别数据有限.

研究的目的:

为了确定在加拿大感染狗的Rhipicephalus物种.
为了调查犬类Rhipicephalus感染和狗的旅行史之间的关联.
了解加拿大的棕色狗的多样性和分布.

主要方法:

来自不列颠哥伦比亚省,安大略省和北克省的13只狗的93只棕色狗的形态鉴定.
从86只单独的虫中提取DNA.
聚合酶连锁反应 (PCR) 放大了12S rRNA线粒体基因片段.
遗传学分析比较放大序列与参考序列.

主要成果:

鉴定了Rhipicephalus linnaei (26.7%) 和Rhipicephalus sanguineus s.s. (70.9%),以及一个Rhipicephalus rutilus (2.3%) 的病例.
感染发生在不列颠哥伦比亚省,安大略省和北克省.
大多数受感染的狗 (76.9%) 最近有国际旅行史 (<1个月).

结论:

证实了加拿大狗中多种Rhipicephalus物种的存在.
表明国际旅行是引入这些的主要因素.
强调需要进一步研究北美犬类Rhipicephalus的分布和多样性.

关键词:

12S rRNA 基因是12S 的基因.棕色狗复杂物种复杂物种 R. rutiluslus 是一个古老的植物.血液型的R. sanguineus是一种血液型的R.里皮塞法卢斯 (Rhipicephalus linnaei) 是一个有趣的动物.旅行旅行旅行旅行

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