Pladevall, ClaraCaritg, RogerCámara, FranciscoCarbonell Sala, SilviaGómez-Garrido, JèssicaCruz, FernandoGut, MartaArroyo, VanesaKomac, BenjaminVila, RogerGuigó Serra, RodericAlioto, TylerNiell, Manel2025-07-252025-07-252025Pladevall C, Caritg R, Cámara F, Carbonell S, Gómez-Garrido J, Cruz F, et al. The genome sequence of the Violet Copper, Lycaena helle (Denis & Schiffermüller, 1775). F1000Res. 2025 Jan 10;14:60. DOI: 10.12688/f1000research.156485.12046-1402http://hdl.handle.net/10230/71002We present a genome assembly from an individual female Lycaena helle (the Violet Copper; Arthropoda; Insecta; Lepidoptera; Lycaenidae). The genome sequence is 547.31 megabases in span. The entirety of the genome sequence was assembled into 25 contiguous chromosomal pseudomolecules with no gaps, including the Z and W sex chromosomes. The mitochondrial genome has also been assembled and is 15.5 kilobases in length. Gene annotation of this assembly identified 20,122 protein coding genes.application/pdfeng© 2025 Pladevall C et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/articlehttp://dx.doi.org/10.12688/f1000research.156485.1LepidopteraLycaena helleRNA-seqViolet CopperGenome sequenceinfo:eu-repo/semantics/openAccess