Tatiana Medeiros Barbosa Cabrini , Bruna N. Machado , Raquel A.F. Neves , Rogério T. Vianna , Darlânia S. Silva , Patricia Mirella da Silva
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引用次数: 0
摘要
据了解,棘头蚴寄生虫,特别是Profilicollis属的棘头蚴寄生虫,会感染十足目甲壳类动物,包括巴西雌鲎等鼹形蟹,这些鼹形蟹是棘头蚴寄生虫复杂生命周期中的中间宿主。本研究报告了巴西东南部沙滩上首次出现的棘头蚴寄生虫Profilicollis altmani感染鼹蟹Emerita brasiliensis的情况,从而扩大了这种寄生虫的已知地理范围。此外,该研究还提供了新的分子数据,加深了我们对该寄生虫的分类和分布的了解,包括首次证明中间宿主巴西鲎(E. brasiliensis)种群内的遗传变异。基于线粒体 COX1 基因序列的系统发育分析证实了寄生虫的身份,并强调了 P. altmani 种群之间的微小遗传差异。这些发现表明寄生虫的遗传种群结构较弱,并强调有必要开展进一步研究,以了解这些种群之间的基因流动情况。这项研究有助于了解沙滩生态系统中寄生虫与宿主之间的相互作用。它强调了监测巴西鳗等物种寄生虫感染的重要性,这些物种在这些环境中发挥着至关重要的生态作用。
Acanthocephalan Profilicollis altmani infecting the mole crab Emerita brasiliensis in southeastern Brazil
Acanthocephalan parasites, specifically from the genus Profilicollis, are known to infect decapod crustaceans, including mole crabs like Emerita brasiliensis, which serve as intermediate hosts in their complex life cycles. This study reports the first occurrence of the acanthocephalan parasite Profilicollis altmani infecting the mole crab Emerita brasiliensis on a sandy beach in southeastern Brazil, thereby expanding the known geographic range of this parasite. Additionally, the study provides novel molecular data that enhance our understanding of the parasite’s taxonomy and distribution, including the first evidence of genetic variation within populations of the intermediate host E. brasiliensis. Phylogenetic analysis based on mitochondrial COX1 gene sequences confirmed the identification of the parasite and underlined small genetic differences among P. altmani populations. These findings suggest a weak genetic population structure of the parasite and underscore the need for further studies to understand gene flow among these populations. This work contributes to the knowledge of parasite-host interactions in sandy beach ecosystems. It highlights the importance of monitoring parasitic infections in species like E. brasiliensis, which play a crucial ecological role in these environments.
期刊介绍:
The Journal of Invertebrate Pathology presents original research articles and notes on the induction and pathogenesis of diseases of invertebrates, including the suppression of diseases in beneficial species, and the use of diseases in controlling undesirable species. In addition, the journal publishes the results of physiological, morphological, genetic, immunological and ecological studies as related to the etiologic agents of diseases of invertebrates.
The Journal of Invertebrate Pathology is the adopted journal of the Society for Invertebrate Pathology, and is available to SIP members at a special reduced price.