Nationwide multi-omics profiling of Japanese jack mackerel reveals geographic gut microbiome structuring despite host panmixia

Host genetic markers often fail to resolve regional origins in highly connected or panmictic marine species.

Host genetic markers often fail to resolve regional origins in highly connected or panmictic marine species. The Japanese jack mackerel, Trachurus japonicus, is a commercially important fishery species around Japan that shows little or no detectable population structure. Here,…