Abstract
The rock bream (Oplegnathus fasciatus) is one of the most economically valuable marine fish in East Asia, and due to various environmental factors, there is substantial revenue loss in the production sector. Therefore, knowledge of its genome is required to uncover the genetic factors and the solutions to these problems. In this study, we constructed the first draft genome of O. fasciatus as a reference for the family Oplegnathidae. The genome size is estimated to be 749 Mb, and it was assembled into 766 Mb by combining Illumina and PacBio sequences. A total of 24,053 transcripts (23,338 genes) are predicted, and among those transcripts, 23,362 (97%), are annotated with functional terms. Finally, the completeness of the genome assembly was assessed by CEGMA, which resulted in the complete mapping of 220 (88.7%) core genes in the genome. To the best of our knowledge, this is the first draft genome for the family Oplegnathidae.
Highlights
Background & SummaryOplegnathus fasciatus, is a fish belonging to the family Oplegnathidae
The rock bream inhabits estuaries at various depths according to their growth stage, i.e., as juveniles, they are mostly found in drifting seaweed/algae, and as adults, they are present at depths of 1 to 10 meters[1]
Based on a literature survey and author knowledge, this is the first draft genome presented to the public from the family of Oplegnathidae; these data could be a valuable asset for marine researchers
Summary
Oplegnathus fasciatus (commonly known as rock bream, barred knifejaw or striped beakfish), is a fish belonging to the family Oplegnathidae. The species growth depends on the photoperiod[2] Other factors, such as overfishing and environmental changes, are affecting fish yield and cost, in wild conditions. A total of 334.3 Gb of mRNA transcriptome sequences from 34 libraries (313.8 Gb of Illumina data and 20.5 Gb of Iso-Seq data) was used for the EVM, and seven genomes were used in the ab initio gene modeler. These analyses predicted 23,338 genes and 24,053 transcripts, and 23,362 (97%) of those transcripts were annotated from biological databases. Based on a literature survey and author knowledge, this is the first draft genome presented to the public from the family of Oplegnathidae; these data could be a valuable asset for marine researchers
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