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首页> 外文期刊>Journal of Parasitology >MOLECULAR AND MORPHOLOGICAL CHARACTERIZATION OF A BRAZILIAN LINEAGE OF PLASMODIUM (NOVYELLA) UNALIS IN TURDUS SPP. (PASSERIFORMES) OF THE ATLANTIC FOREST, WITH REMARKS ON NEW HOSTS AND HIGH GENETIC VARIATION
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MOLECULAR AND MORPHOLOGICAL CHARACTERIZATION OF A BRAZILIAN LINEAGE OF PLASMODIUM (NOVYELLA) UNALIS IN TURDUS SPP. (PASSERIFORMES) OF THE ATLANTIC FOREST, WITH REMARKS ON NEW HOSTS AND HIGH GENETIC VARIATION

机译：丘托斯SPP疟原虫（Novyella）Unalis的巴西血管谱系的分子与形态学。 大西洋森林（Passeriformes），关于新宿主和高遗传变异的备注

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摘要

Plasmodium spp. are haemosporidian protozoans that alternate their live cycles between bloodsucking Culicidae dipterans and vertebrate hosts (mammals, reptiles, and birds). In birds, these parasites are the causative agents of the so-called avian malaria, a disease associated with considerable declines and extinctions in the avifauna in different geographical regions. In this work, we applied a multidisciplinary approach, light microscopy and cytochrome oxidase b (cyt b) gene sequence analysis, for characterization of Plasmodium spp. found in association with wild birds of the genus Turdus, collected in Atlantic forest fragments of southeastern Brazil. From the total 90 analyzed birds, 58 (47 Turdus rufiventris, 9 Turdus leucomelas, 1 Turdus albicollis, and 1 Turdus flavipes) were positively infected with Plasmodium unalis, a haemosporidian that was previously detected in Turdus fuscater in Colombia and in penguins in Brazil, but has never been found in association with these Turdus species of this present work. Moreover, all 7 new sequences of P. unalis cyt b gene clustered into a monophyletic clade with previously characterized P. unalis sequences with a mean genetic divergence of 1.6% and with a maximum divergence of 3.1%, indicating for a high degree of intraspecific polymorphism within this parasitic species. Together, our data highlight the existence a high degree of intraspecific variation within P. unalis and highlight the importance of integrative taxonomy to an accurate identification and characterization of avian haemosporidian parasites.
机译：疟原虫SPP。是否是血清孢子原生动物，其在血腥的慈善皮人Dipterans和脊椎动物宿主（哺乳动物，爬行动物和鸟类）之间交替他们的活循环。在鸟类中，这些寄生虫是所谓的禽疟疾的致病药物，这种疾病与不同地理区域的Avifauna相当下降和灭绝相关的疾病。在这项工作中，我们应用了多学科方法，光学显微镜和细胞色素氧化酶B（Cyt B）基因序列分析，用于表征疟原虫SPP。在巴西东南部的大西洋森林碎片中收集了与野生鸟类的野生鸟类。从90分析的鸟类，58次（Turdus rufiventris，9位Turdus Leucomelas，1 Turdus albicollas和1个Turdus flavipes）被呈疟原虫疟原虫，以前在哥伦比亚·福德斯和巴西企鹅检测到的血清孢子，但从未与这些本工作的这些土耳其物种相关联。此外，所有7个新的P. Unalis Cyt B基因的序列聚集成单位曲线的胰蛋白曲线，其特征在一起，具有12.6％的平均遗传分歧的Unalis序列，最大分歧为3.1％，表明高度的拆放多态性在这个寄生物种中。我们的数据共同突出了P. Unalis内的高度内部内部变化，并突出了综合分类对准确鉴定和表征的禽血管鸟寄生虫的重要性。

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  • 来源
    《Journal of Parasitology》 |2018年第1期|共9页
  • 作者

    Tostes Raquel; Dias Roberto J. P.; de Oliveira Luisa; Senra Marcus V. X.; Massard Carlos L.; DAgosto Marta;

  • 作者单位

    Univ Fed Rural Rio de Janeiro Inst Vet Posgrad Ciencias Vet BR-23890000 Seropedica RJ Brazil;

    Univ Fed Rural Rio de Janeiro Inst Vet Posgrad Ciencias Vet BR-23890000 Seropedica RJ Brazil;

    Univ Fed Rural Rio de Janeiro Inst Vet Posgrad Ciencias Vet BR-23890000 Seropedica RJ Brazil;

    Univ Fed Rural Rio de Janeiro Inst Vet Posgrad Ciencias Vet BR-23890000 Seropedica RJ Brazil;

    Univ Fed Rural Rio de Janeiro Inst Vet Posgrad Ciencias Vet BR-23890000 Seropedica RJ Brazil;

    Univ Fed Rural Rio de Janeiro Inst Vet Posgrad Ciencias Vet BR-23890000 Seropedica RJ Brazil;

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  • 正文语种 eng
  • 中图分类 寄生动物、寄生虫学;
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