Fig. 1

High-quality haplotype-resolved genome assembly of upland switchgrass JJ31. a Flowering morphology of the upland ecotype JJ31. b Whole genome Hi-C heat map for “JJ31-A” (left) and “JJ31-B” (right). c The chromosome collinearity between the genomes of JJ31 and Alamo. Numbers represent chromosome identifiers. d Genome features of the JJ31 genome. Track “a”: chromosome length; track “b”: gene density; track “c”: transposable element (TE) density; track “d”: GC content; track “e–g”: gene expression levels in roots, stems, and leaves; track “h”: collinearity between chromosomes of “JJ31-A” and “JJ31-B”