Open AccessTrans-omics approaches used to characterise fish nutritional biorhythms in leopard coral grouper (Plectropomus leopardus)
Author(s) -
Miyuki Mekuchi,
Kenji Sakata,
Tomohiko Yamaguchi,
Masahiko Koiso,
Jun Kikuchi
Publication year - 2017
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-017-09531-4
Subject(s) - grouper , biology , leopardus , aquaculture , serranidae , coral , coral reef , fishery , transcriptome , epinephelus , zoology , fish <actinopterygii> , ecology , gene , genetics , gene expression
Aquaculture is now a major supplier of fish, and has the potential to be a major source of protein in the future. Leopard coral groupers are traded in Asian markets as superior fish, and production via aquaculture has commenced. As feeding efficiency is of great concern in aquaculture, we sought to examine the metabolism of leopard coral groupers using trans-omics approaches. Metabolic mechanisms were comprehensively analysed using transcriptomic and metabolomic techniques. This study focused on the dynamics of muscular metabolites and gene expression. The omics data were discussed in light of circadian rhythms and fasting/feeding. The obtained data suggest that branched-chain amino acids played a role in energy generation in the fish muscle tissues during fasting. Moreover, glycolysis, TCA cycles, and purine metabolic substances exhibited circadian patterns, and gene expression also varied. This study is the first step to understanding the metabolic mechanisms of the leopard coral grouper.