snRNA-seq of whole hearts from adult fzt:DU mice

We used snRNA-seq to investigate for the first time an entire adult mammalian heart. To avoid potential aberrations due to inbreeding, we relied on an outbred mice strain (Fzt:DU) (Dietl, G.; Langhammer, M.; Renne, U. Model simulations for genetic random drift in the outbred strain Fzt:DU. Arch. Anim. Breed. 2004, 47, 595–604). Whole hearts were harvested from 4 male mice (12 weeks) after cervical dislocation. The hearts were pooled and nuclei isolated using the Nuclei PURE Prep isolation kit (Sigma-Aldrich, Darmstadt, Germany) according to the manufacturer's protocol. Sequencing was conducted by Genewiz (Leipzig, Germany) on the 10xGenomics system. Single nuclei were captured in droplet emulsions and snRNA-seq libraries were constructed as per the 10x Genomics protocol using GemCode Single-Cell 3' Gel Bead and Library V3 Kit. RNA was controlled for sufficient quality on an Agilent 2100 Bioanalyzer system and quantified using a Qubit Fluorometer. For further experimental details as well as computational scripts and results can be obtained from http://doi.org/10.15490/FAIRDOMHUB.1.STUDY.713.1.