A Chromosome-Level Genome Assembly of the Anglerfish Lophius litulon.
Front Genet, 2020;11:581161.
Lv M[1, 2], Zhang Y[2, 3, 4], Liu K[5, 6], Li C[2], Wang J[2], Fan G[2, 3, 7], Liu X[2, 3, 7], Yang H[3, 7], Liu C[5, 6], Mahboob S[8], Liu J[2, 3, 7, 9], Shao C[5, 6]
Affiliations
PMID: 33329719DOI: 10.3389/fgene.2020.581161
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.
Keywords: Lophiiformes; Lophius litulon; anglerfish; chromosomal evolution; metabolism
More resources
Full text:
Europe PubMed Central; PubMed Central
EndNote: Download