RT Journal Article SR Electronic T1 Benchmarking ultra-high molecular weight DNA preservation methods for long-read and long-range sequencing JF bioRxiv FD Cold Spring Harbor Laboratory SP 2021.07.13.451380 DO 10.1101/2021.07.13.451380 A1 Hollis A. Dahn A1 Jacquelyn Mountcastle A1 Jennifer Balacco A1 Sylke Winkler A1 Iliana Bista A1 Anthony D. Schmitt A1 Olga Vinnere Pettersson A1 Giulio Formenti A1 Karen Oliver A1 Michelle Smith A1 Wenhua Tan A1 Anne Kraus A1 Stephen Mac A1 Lisa M. Komoroske A1 Tanya Lama A1 Andrew J. Crawford A1 Robert W. Murphy A1 Samara Brown A1 Alan F. Scott A1 Phillip A. Morin A1 Erich D. Jarvis A1 Olivier Fedrigo YR 2021 UL http://biorxiv.org/content/early/2021/07/20/2021.07.13.451380.abstract AB Studies in vertebrate genomics require sampling from a broad range of tissue types, taxa, and localities. Recent advancements in long-read and long-range genome sequencing have made it possible to produce high-quality chromosome-level genome assemblies for almost any organism. However, adequate tissue preservation for the requisite ultra-high molecular weight DNA (uHMW DNA) remains a major challenge. Here we present a comparative study of preservation methods for field and laboratory tissue sampling, across vertebrate classes and different tissue types. We find that no single method is best for all cases. Instead, the optimal storage and extraction methods vary by taxa, by tissue, and by down-stream application. Therefore, we provide sample preservation guidelines that ensure sufficient DNA integrity and amount required for use with long-read and long-range sequencing technologies across vertebrates. Our best practices generated the uHMW DNA needed for the high-quality reference genomes for Phase 1 of the Vertebrate Genomes Project (VGP), whose ultimate mission is to generate chromosome-level reference genome assemblies of all ∼70,000 extant vertebrate species.Competing Interest StatementThe authors have declared no competing interest.