Telomere-to-telomere reference genome of the common five-lined skink, <i>Plestiodon fasciatus</i> (Squamata: Scincidae)
Although the publication of high-quality reference genomes is steadily increasing, many clades remain chronically neglected. Skinks (order, Squamata; family, Scincidae) are one of the most diverse lizard families (1,785 species), yet there are currently just six published chromosome-level skink genomes. Here, we present the first telomere-to-telomere, chromosome-level reference genome for one of the most abundant lizards in the eastern United States, the common five-lined skink (Plestiodon fasciatus). Through the sequencing of RNA, long-read DNA, and Hi-C chromatin interactions, we produced an annotated reference genome (N50 = 227MB, L50 = 3) consisting of 6 macrochromosome pairs and 7 microchromosome pairs with 98% of BUSCO genes represented (lineage, Sauropsida; 7480 BUSCO markers), providing one of the most complete skink genomes to date: rPleFas1.1. Functional annotation predicts 32,520 protein-coding genes (16,100 unique, named genes) with an average gene length of 9,372 bp. Repeat annotations estimate that transposable elements comprise 46.7% of the genome, for which we show the amount and content is remarkably conserved across Scincidae.
Authors
- Frank T. Burbrink (ORCID: https://orcid.org/0000-0001-6687-8332)
- Christopher J. Raxworthy (ORCID: https://orcid.org/0000-0002-4517-0447)
- R. Alexander Pyron (ORCID: https://orcid.org/0000-0003-2524-1794)
- James Hoffman (ORCID: https://orcid.org/0009-0007-2021-6318)
Institutions
- American Museum of Natural History (US)
- George Washington University (US)
Publication Details
- Journal
- G3 Genes Genomes Genetics
- Published
- 2025-12-12
- DOI
- https://doi.org/10.1093/g3journal/jkaf302
- Primary Topic
- Genomics and Phylogenetic Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- Michigan Department of Natural Resources
- California Department of Fish and Wildlife