南美洲南锥体地区四种鸟类血吸虫的系统学和生命周期。

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
P Oyarzún-Ruiz, R Thomas, A Santodomingo, M Zamorano-Uribe, M Moroni, L Moreno, S Muñoz-Leal, V Flores, S Brant
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引用次数: 0

摘要

相对于对哺乳动物血吸虫的大量研究,对鸟类血吸虫的研究较少,尤其是在南半球。这种情况正在发生变化,目前在新热带地区进行的研究显示,当地特有的类群具有显著的多样性。为了促进这项工作,我们分别从智利和阿根廷采集了 9 只鸭子(Spatula cyanoptera、S.versicolor、Netta peposaca)、12 只天鹅(Cygnus melancoryphus)和 1,400 只 Physa spp.分离出的血吸虫被保存起来进行形态学和分子分析(28S 和 COI 基因)。从鸟类身上发现了四种不同的血吸虫类群:N.peposaca和S.cyanoptera中的Trichobilharzia sp.形成一个支系;S.cyanoptera和S.versicolor寄生Trichobilharzia querquedulae;Cygnus melancoryphus寄生鼻吸虫Nasusbilharzia melancorhypha;以及一种内脏吸虫Schistosomatidae gen.在体螺中,只有一个来自阿根廷的体螺具有血吸虫毛蚴,根据分子分析,它与 T. querquedulae 合为一类。这项研究首次描述了智利的成体血吸虫,并阐明了 N.melancorhypha 和 T. querquedulae 分别在智利和新热带地区的生命周期。由于没有保存完好的成虫,无法描述血吸虫科新属(gen. sp.),但其生命周期涉及到 Chilina spp.和 C. melancoryphus。T. querquedulae的扫描电子显微镜发现了更多未被描述的形态特征,突出了其诊断的重要性。作者强调有必要对新热带地区的鸟类血吸虫进行更多的调查,以更好地了解它们的进化史。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Systematics and life cycles of four avian schistosomatids from Southern Cone of South America.

Relative to the numerous studies focused on mammalian schistosomes, fewer include avian schistosomatids particularly in the southern hemisphere. This is changing and current research emerging from the Neotropics shows a remarkable diversity of endemic taxa. To contribute to this effort, nine ducks (Spatula cyanoptera, S.versicolor, Netta peposaca), 12 swans (Cygnus melancoryphus) and 1,400 Physa spp. snails from Chile and Argentina were collected for adults and larval schistosomatids, respectively. Isolated schistosomatids were preserved for morphological and molecular analyses (28S and COI genes). Four different schistosomatid taxa were retrieved from birds: Trichobilharzia sp. in N. peposaca and S. cyanoptera that formed a clade; S.cyanoptera and S. versicolor hosted Trichobilharzia querquedulae; Cygnus melancoryphus hosted the nasal schistosomatid, Nasusbilharzia melancorhypha; and one visceral, Schistosomatidae gen. sp., which formed a clade with furcocercariae from Argentina and Chile from previous work. Of the physid snails, only one from Argentina had schistosomatid furcocercariae that based on molecular analyses grouped with T. querquedulae. This study represents the first description of adult schistosomatids from Chile as well as the elucidation of the life cycles of N.melancorhypha and T. querquedulae in Chile and Neotropics, respectively. Without well-preserved adults, the putative new genus Schistosomatidae gen. sp. could not be described, but its life cycle involves Chilina spp. and C. melancoryphus. Scanning electron microscopy of T. querquedulae revealed additional, undescribed morphological traits, highlighting its diagnostic importance. Authors stress the need for additional surveys of avian schistosomatids from the Neotropics to better understand their evolutionary history.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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