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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 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.

SUBMITTER: Lee SJ

PROVIDER: S-EPMC10522714 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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

Lee Seung Jae SJ Kim Jinmu J Choi Eun Kyung EK Jo Euna E Cho Minjoo M Kim Jeong-Hoon JH Park Hyun H

Scientific data 20230926 1

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. ...[more]

PMID: 37752129

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