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First detection of herpesvirus and hemosporidians in the endangered Pyrenean Capercaillie (Tetrao urogallus aquitanicus)
Scientific Reports ( IF 3.8 ) Pub Date : 2023-12-11 , DOI: 10.1038/s41598-023-48123-3
Olga Nicolás de Francisco 1 , Irene Sacristán 2 , Ana Carolina Ewbank 3 , Roser Velarde 4 , Ivan Afonso 5 , Diego Garcia-Ferré 6 , Bárbara Martín-Maldonado 7 , Fernando Esperón 7 , Irene Iglesias 2 , Ana de la Torre 2 , Antoni Margalida 8 , Carlos Sacristán 2
Affiliation  

Pathogens affect wild bird populations worldwide, contributing to their decline. Considering the scarce health data regarding the endangered Pyrenean Capercaillie (Tetrao urogallus aquitanicus), we molecularly surveyed selected pathogens (Newcastle disease virus, Avian influenza virus, Chlamydia psittaci, avian pathogenic Escherichia coli, Campylobacter jejuni, and Salmonella spp.) in 30 Pyrenean Capercaillie feces collected in the field (Catalonia, northeastern Spain). Additionally, swab and tissue samples from eight wild Pyrenean Capercaillies of Catalonia and Andorra were molecularly tested for herpesvirus and hemosporidians (Plasmodium spp., Haemoproteus spp., and Leucocytozoon spp.). All fecal samples were negative for the pathogens tested. Nevertheless, we detected a novel herpesvirus in 50% (4/8) of the Pyrenean Capercaillies, and hemosporidian DNA in 62.5% (5/8) of the tissue samples (i.e., Haemoproteus sp. [4 of 8] and/or Leucocytozoon sp. [3 of 8]). To our knowledge, this is the first detection of herpesvirus and hemosporidians infections in Pyrenean Capercaillies. The putative novel herpesvirus belongs to the genus Iltovirus. The presence of hemosporidian parasites in this mountain bird species is of concern, and could be related to the marked increase in the average temperature in the Pyrenees as a consequence of climate change. Our findings are fundamental to improve the conservation plans for the endangered Pyrenean Capercaillie population.



中文翻译:


首次在濒临灭绝的比利牛斯山松鸡 (Tetrao urogallus aquitanicus) 中检测到疱疹病毒和血孢子虫



病原体影响着世界范围内的野生鸟类数量,导致其数量减少。考虑到有关濒危比利牛斯山松鸡( Tetrao urogallus aquitanicus )的健康数据稀缺,我们对 30 个比利牛斯山松鸡的选定病原体(新城疫病毒、禽流感病毒、鹦鹉热衣原体、禽致病性大肠杆菌空肠弯曲菌沙门氏菌)进行了分子调查。田间收集的粪便(西班牙东北部加泰罗尼亚)。此外,还对来自加泰罗尼亚和安道尔的八只野生比利牛斯松鸡的拭子和组织样本进行了疱疹病毒和血孢子虫(疟原虫属、血变形菌属和白细胞虫属)的分子检测。所有粪便样本所检测的病原体均为阴性。尽管如此,我们在 50% (4/8) 的比利牛斯松鸡中检测到了一种新型疱疹病毒,在 62.5% (5/8) 的组织样本中检测到了血孢子 DNA(即Haemoproteus sp. [8 中的 4] 和/或白细胞虫) sp。[3 of 8])。据我们所知,这是首次在比利牛斯松鸡中检测到疱疹病毒和血孢子虫感染。假定的新型疱疹病毒属于伊尔托病毒属。这种山鸟中存在血孢子寄生虫令人担忧,这可能与气候变化导致比利牛斯山脉平均气温显着升高有关。我们的研究结果对于改善濒临灭绝的比利牛斯松鸡种群的保护计划至关重要。

更新日期:2023-12-11
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