A chromosome-level reference genome of the Antarctic blackfin icefish Chaenocephalus aceratus

Abstract The blackfin Icefish (Chaenocephalus aceratus) belongs to the family Channichthyidae and the suborder Notothenioidei which lives in the Antarctic. We corrected the mis-scaffolds in the previous linkage map results by Hi-C analysis to obtain improved results for chromosome-level genome assem...

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Bibliographic Details
Published in:Scientific Data
Main Authors: Seung Jae Lee, Jinmu Kim, Eun Kyung Choi, Euna Jo, Minjoo Cho, Jeong-Hoon Kim, Hyun Park
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2023
Subjects:
Science
Q
Antarctic
The Antarctic
Antarc*
Icefish
Online Access:https://doi.org/10.1038/s41597-023-02561-w
https://doaj.org/article/92a129ea548c48a18b07c4e95f8aa7c6
Description
Summary:Abstract The blackfin Icefish (Chaenocephalus aceratus) belongs to the family Channichthyidae and the suborder Notothenioidei which lives in the Antarctic. We corrected the mis-scaffolds in the previous linkage map results by Hi-C analysis to obtain improved results for chromosome-level genome assembly. The final assembly analysis resulted in a total of 3,135 scaffolds, a genome size of 1,065.72 Mb, and an N50 of 33.46 Mb. 820.24 Mb, representing 88.88% of the total genome, is anchored to 24 chromosomes. The final gene set of 38,024 genes, including AFGPs, was annotated using RNA evidence, proteins, and ab-initio predictions. The complete percentage of BUSCO analysis is 92.7%. In this study, we aim to contribute to the study of polar fishes by improving the genome sequences of the blackfin icefish with the AFGP genes belonging to the Notothenoidei.

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