This repository contains the genome assembly for the prairie rattlesnake (Crotalus viridis), along with gene and repeat annotations in GFF format, and transcript and protein sequence files in fasta format. If you use these materials in your research, please cite the original paper: Schield, D.R., D.C. Card, N.M. Hales, B.W. Perry, G.I.M. Pasquesi, H. Blackmon, R.H. Adams, A.B. Corbin, C.F. Smith, B. Ramesh, J.P. Demuth, E. Betran, M. Tollis, J.M. Meik, S.P. Mackessy and T.A. Castoe. 2019. A chromosome-level rattlesnake genome illustrates sex chromosome evolution and molecular mechanisms of venom expression. Genome Research 29: 590-601. Link: [https://genome.cshlp.org/content/29/4/590]