Chromosomal-level genome assembly ofPopulus davidiana

Abstract Despite the population structure and genetic differentiation of P. davidiana has been reported, little is known about the P. davidiana genome characterization with the genomes assembled at the chromosome level. As one of the most widely distributed and ecologically important tree species in China, P. davidiana is an excellent resource to understand population adaption to climate and environment change. Here we present a high-quality assembly based on long-read sequences and Hi-C data. This assembly is assembled into 19 contiguous chromosomes which provides a powerful tool for future association studies.