Abdelhafiz Yousri, Fernandes Jorge M O, Donati Claudio, Pindo Massimo, Kiron Viswanath
Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway.
Unit of Computational Biology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy.
Front Microbiol. 2022 May 17;13:879990. doi: 10.3389/fmicb.2022.879990. eCollection 2022.
Resident microbial communities that can support various host functions play a key role in their development and health. In fishes, microbial symbionts are vertically transferred from the parents to their progeny. Such transfer of microbes in mouthbrooder fish species has not been reported yet. Here, we employed Nile tilapia () to investigate the vertical transmission of microbes across generations using a 16S rRNA amplicon sequencing approach, based on the presence of bacteria in different generations. Our analysis revealed that the core microbiome in the buccal cavity and posterior intestine of parents shapes the gut microbiome of the progeny across generations. We speculate that the route of this transmission is the buccal cavity. The identified core microbiome bacteria, namely , and have been reported to play an essential role in the health and development of offspring. These core microbiome members could have specific functions in fish, similar to mammals.
能够支持各种宿主功能的常驻微生物群落对其发育和健康起着关键作用。在鱼类中，微生物共生体从亲代垂直传递给子代。口育鱼类物种中这种微生物的传递尚未见报道。在此，我们以尼罗罗非鱼（）为研究对象，基于不同世代中细菌的存在情况，采用16S rRNA扩增子测序方法来研究微生物的跨代垂直传播。我们的分析表明，亲代口腔和后肠中的核心微生物群塑造了子代跨代的肠道微生物群。我们推测这种传播途径是口腔。已报道所鉴定出的核心微生物群细菌，即、和，在后代的健康和发育中起着至关重要的作用。这些核心微生物群成员在鱼类中可能具有与哺乳动物类似的特定功能。
