The first finding of Dictyocaulus cervi and Dictyocaulus skrjabini (Nematoda) in feral fallow deer (Dama dama) in Australia

IF 2 3区医学 Q3 ECOLOGY International Journal for Parasitology-Parasites and Wildlife Pub Date : 2024-06-08 DOI:10.1016/j.ijppaw.2024.100953

Keira Brown , David J. Jenkins , Alexander W. Gofton , Ina Smith , Nidhish Francis , Shokoofeh Shamsi , Diane P. Barton

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Abstract

Feral deer are widespread throughout Australia with the capacity to impact livestock production via transmission of parasites. Samples of Dama dama (fallow deer), Rusa unicolor (sambar deer), Cervus elaphus (red deer) and an unidentified deer were sourced from various locations in south-eastern Australia for examination for parasites. Adult nematodes were collected from the lungs of all deer species across four separate geographical locations. The nematodes were identified as species of Dictyocaulus through both morphological and molecular means. Species identification based on morphological features was difficult, with many measurements from described species overlapping. Molecular analyses targeting three markers, namely 18S rRNA, ITS2, and cox1 revealed the presence of two distinct species: Dictyocaulus cervi and Dictyocaulus skrjabini. These are the first genetically confirmed reports of species of Dictyocaulus in feral deer in Australia, and although cross-transmission of species of Dictyocaulus with livestock has not yet been reported, it cannot be completely discounted without further research.

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首次在澳大利亚的野生秋鹿（Dama dama）中发现 Dictyocaulus cervi 和 Dictyocaulus skrjabini（线虫）。

野鹿广泛分布于澳大利亚各地，可通过传播寄生虫影响畜牧业生产。我们从澳大利亚东南部不同地点采集了达玛鹿（Dama dama）、单色鹿（Rusa unicolor）、马鹿（Cervus elaphus）和一种不明鹿的样本，进行寄生虫检查。在四个不同的地理位置，从所有鹿类的肺部采集了成体线虫。通过形态学和分子学方法确定线虫为 Dictyocaulus 的物种。根据形态特征进行物种鉴定非常困难，因为许多描述物种的测量结果是重叠的。以 18S rRNA、ITS2 和 cox1 三个标记为目标的分子分析表明存在两个不同的物种：Dictyocaulus cervi 和 Dictyocaulus skrjabini。这是首次从遗传学角度证实澳大利亚野鹿中存在Dictyocaulus物种的报告，虽然尚未有Dictyocaulus物种与家畜交叉传播的报告，但在没有进一步研究的情况下，不能完全排除这种可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal for Parasitology-Parasites and Wildlife Medicine-Infectious Diseases

CiteScore

3.80

自引率

5.60%

发文量

113

审稿时长

45 days

期刊介绍： The International Journal for Parasitology: Parasites and Wildlife (IJP-PAW) publishes the results of original research on parasites of all wildlife, invertebrate and vertebrate. This includes free-ranging, wild populations, as well as captive wildlife, semi-domesticated species (e.g. reindeer) and farmed populations of recently domesticated or wild-captured species (e.g. cultured fishes). Articles on all aspects of wildlife parasitology are welcomed including taxonomy, biodiversity and distribution, ecology and epidemiology, population biology and host-parasite relationships. The impact of parasites on the health and conservation of wildlife is seen as an important area covered by the journal especially the potential role of environmental factors, for example climate. Also important to the journal is ''one health'' and the nature of interactions between wildlife, people and domestic animals, including disease emergence and zoonoses.