Transcriptome profiling of Tetracapsuloides bryosalmonae (Myxozoa)

Tetracapsuloides bryosalmonae is a myxozoan parasite that causes proliferative kidney disease (PKD) in salmonids. PKD declines the wild salmonid population in Europe and causes high economic loss to salmonid industries. The life cycle of T. bryosalmonae occurs between salmonid fish and bryozoan hosts. Infected fish release viable spores via urine and transmit to bryozoans. The parasite develops in the body cavity of bryozoans and forms parasite sacs. Nevertheless, limited transcriptomic resources are accessible for this myxozoan parasite, which hampers investigations into molecular mechanisms. To better understand the biological foundation of T. bryosalmonae, particularly the molecular mechanisms, there is a requirement to explore the transcriptome biology of T. bryosalmonae. This study reveals the biological aspects of T. bryosalmonae and delivers transcriptomic resources and characteristics for T. bryosalmonae.

苔藓四孢虫（Tetracapsuloides bryosalmonae）是一种粘孢子虫寄生物，可引发鲑形目鱼类罹患增殖性肾病（PKD）。该病不仅造成欧洲野生鲑形目种群数量锐减，还会给鲑鳟水产养殖业带来高额经济损失。该寄生虫的生活史循环于鲑形目鱼类与苔藓虫宿主之间：受感染的鱼类可通过尿液释放具有感染活性的孢子，进而将寄生虫传播给苔藓虫；寄生虫会在苔藓虫的体腔内完成发育并形成寄生囊。然而，当前针对该粘孢子虫的转录组学资源极为匮乏，这极大阻碍了其分子机制相关研究的推进。为更深入解析苔藓四孢虫的生物学基础，尤其是其分子作用机制，亟需开展该物种的转录组生物学相关研究。本研究阐明了苔藓四孢虫的多项生物学特征，并为该粘孢子虫提供了转录组学资源及其相关特征信息。