A Chromosome-Level Genome Assembly of the Anglerfish Lophius litulon

Meiqi Lv, Yaolei Zhang, Kaiqiang Liu, Chang Li, Jiahao Wang, Guangyi Fan, Xin Liu, Huanming Yang, Changlin Liu, Shahid Mahboob, Junnian Liu*, Changwei Shao

*Corresponding author for this work

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Abstract

Anglerfishes are a highly diverse group of species with unique characteristics. Here, we report the first chromosome-level genome of a species in the order Lophiiformes, the yellow goosefish (Lophius litulon), obtained by whole genome shotgun sequencing and high-throughput chromatin conformation capture. Approximately 97.20% of the assembly spanning 709.23 Mb could be anchored to 23 chromosomes with a contig N50 of 164.91 kb. The BUSCO value was 95.4%, suggesting that the quality of the assembly was high. A comparative gene family analysis identified expanded and contracted gene families, and these may be associated with adaptation to the benthic environment and the lack of scales in the species. A majority of positively selected genes were related to metabolic processes, suggesting that digestive and metabolic system evolution expanded the diversity of yellow goosefish prey. Our study provides a valuable genetic resource for understanding the mechanisms underlying the unique features of the yellow goosefish and for investigating anglerfish evolution.
Original languageEnglish
Article number581161
JournalFrontiers in Genetics
Volume11
Number of pages9
ISSN1664-8021
DOIs
Publication statusPublished - 2020

Keywords

  • Anglerfish
  • Lophius litulon
  • Lophiiformes
  • Chromosomal evolution
  • Metabolism

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