Novel phylogenetic clade of avian Haemoproteus parasites (Haemosporida, Haemoproteidae) from Accipitridae raptors, with description of a new Haemoproteus species.

IF 2.3 2区 医学 Q2 PARASITOLOGY
Parasite Pub Date : 2024-01-01 Epub Date: 2024-02-08 DOI:10.1051/parasite/2023066
Josef Harl, Anaïs Fauchois, Marie-Pierre Puech, Delphine Gey, Frédéric Ariey, Brigitte Izac, Herbert Weissenböck, Nayden Chakarov, Tatjana Iezhova, Gediminas Valkiūnas, Linda Duval
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引用次数: 0

Abstract

Avian haemosporidian parasites (order Haemosporida, phylum Apicomplexa) are blood and tissue parasites transmitted by blood-sucking dipteran insects. Three genera (Plasmodium, Haemoproteus and Leucocytozoon) have been most often found in birds, with over 270 species described and named in avian hosts based mainly on the morphological characters of blood stages. A broad diversity of Haemoproteus parasites remains to be identified and characterized morphologically and molecularly, especially those infecting birds of prey, an underrepresented bird group in haemosporidian parasite studies. The aim of this study was to investigate and identify Haemoproteus parasites from a large sample comprising accipitriform raptors of 16 species combining morphological and new molecular protocols targeting the cytb genes of this parasite group. This study provides morphological descriptions and molecular characterizations of two Haemoproteus species, H. multivacuolatus n. sp. and H. nisi Peirce and Marquiss, 1983. Haemoproteus parasites of this group were so far found in accipitriform raptors only and might be classified into a separate subgenus or even genus. Cytb sequences of these parasites diverge by more than 15% from those of all others known avian haemosporidian genera and form a unique phylogenetic clade. This study underlines the importance of developing new diagnostic tools to detect molecularly highly divergent parasites that might be undetectable by commonly used conventional tools.

来自翼手目猛禽的新的寄生虫系统发育支系(血孢子虫科,血蛋白虫科),并描述了一个新的血蛋白虫物种。
鸟类血孢子虫寄生虫(血孢子虫目,吸虫门)是由吸血双翅目昆虫传播的血液和组织寄生虫。在鸟类中最常发现的有三个属(疟原虫属、血孢子虫属和亮孢子虫属),主要根据血液阶段的形态特征,在鸟类宿主中描述和命名了 270 多个物种。血孢子虫寄生虫种类繁多,在形态学和分子学上仍有待鉴定和定性,尤其是那些感染猎禽的血孢子虫寄生虫,而猎禽是血孢子虫寄生虫研究中代表性不足的鸟类。本研究的目的是结合形态学和针对该寄生虫群细胞色素基因的新分子方案,调查和鉴定由 16 个物种的重唇猛禽组成的大样本中的血孢子虫寄生虫。本研究提供了两个血包虫物种的形态描述和分子特征,即 H. multivacuolatus n. sp.迄今为止,该类血包虫寄生虫仅在重唇猛禽中发现,可能被归入单独的亚属甚至属。这些寄生虫的 Cytb 序列与所有其他已知禽类血孢子虫属的 Cytb 序列相差 15%以上,形成了一个独特的系统发育支系。这项研究强调了开发新诊断工具的重要性,以检测分子上高度不同的寄生虫,而常用的常规工具可能检测不到这些寄生虫。
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
Parasite
Parasite 医学-寄生虫学
CiteScore
5.50
自引率
6.90%
发文量
49
审稿时长
3 months
期刊介绍: Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools. All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
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