A "light in the darkness": First transcriptomic data from deep-sea spiny eels (Notacanthus, Notacanthiformes)

Area of Science:

• Marine Biology
• Genomics
• Deep-Sea Ecology

Background:

• The genus Notacanthus includes deep-sea fish with unique ecological roles and phylogenetic significance.
• Currently, there are no available transcriptomic, genomic, or proteomic resources for Notacanthus species.

Purpose of the Study:

• To generate and provide transcriptomic data for two Notacanthus species.
• To offer functional annotation for the identified transcripts.
• To establish foundational genomic resources for deep-sea fish research.

Main Methods:

• Brain and eye tissues were collected from Notacanthus bonaparte and N. arrontei.
• Transcriptome sequencing was performed on the collected tissues.
• Bioinformatic analyses were conducted for functional annotation of the transcripts.

Main Results:

• A comprehensive brain and eye transcriptome was successfully generated for both Notacanthus species.
• Functional annotation revealed insights into the genes and pathways present in these deep-sea fish.
• Novel genomic data for two notacanthid species are now available.

Conclusions:

• The presented transcriptomic datasets represent a significant advancement for Notacanthus research.
• These resources will facilitate future investigations into deep-sea fish biology, evolution, and adaptation.
• This work contributes to the understanding of the bathypelagic fish community.