AI Article Synopsis
- Amphioxus species, seen as living fossils, are crucial for studying chordate and vertebrate evolution.
- A detailed genome analysis of Beihai amphioxus revealed 347 viral homologous fragments, mostly found within protein-coding genes.
- This research highlights the significant yet overlooked influence of viral sequences on the evolution of amphioxus, particularly in genes related to histones.
Article Abstract
Amphioxus species are considered living fossils and are important in the evolutionary study of chordates and vertebrates. To explore viral homologous sequences, a high-quality annotated genome of the Beihai amphioxus ( beihai) was examined using virus sequence queries. In this study, 347 homologous fragments (HFs) of viruses were identified in the genome of beihai, of which most were observed on 21 genome assembly scaffolds. HFs were preferentially located within protein-coding genes, particularly in their CDS regions and promoters. A range of amphioxus genes with a high frequency of HFs is proposed, including histone-related genes that are homologous to the or domains of viruses. Together, this comprehensive analysis of viral HFs provides insights into the neglected role of viral integration in the evolution of amphioxus.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10145014 | PMC |
| http://dx.doi.org/10.3390/v15040909 | DOI Listing |
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