Microbiota of Gymnocypris przewalskii

The microbial dynamic of aquatic animal is crucial for the health of host. Gymnocypris przewalskii, Qinghai Lake naked carp, a short-distance anadromous fish, is the predominant species in Qinghai Lake. In Qinghai Lake, G. przewalskii needs more than 7 years to reach sexual maturity, and then its breeding group seasonally migrates to inflowing rivers to spawn over sandy gravel beds when the river water temperature rises to 6~17.5°C from April to July. Along with migration, there is a crucial dynamic on symbiotic microorganism. Moreover, the colonization of symbiotic microorganism in post-spawn eggs, post-hatch larvae and post-feed juveniles is important for artificial culture. Here, we used 16S rRNA gene amplicon sequencing to get the structure dynamic of the symbiotic microbial community in several development stages of G. przewalskii from eggs to adults.