Chromosome-level Reference Genome of the Critically Endangered Tree Kmeria septentrionalis

Kmeria septentrionalis, a critically endangered tree endemic to Guangxi in China and listed on the International Union for Conservation of Nature's Red List, suffers from a lack of genetic information and a paucity of high-quality genome data. In our study, we construct and annotate a complete K. septentrionalis genome at the chromosome level, assess its quality, and contextualize it with the genomic data of other relative plants. The genome is measured at 2.57 Gb with a contig N50 of 11.93 Mb. Using Hi-C guided genome assembly, we assembled 496 out of the initial 705 raw contigs into 19 pseudochromosomes that have a scaffold N50 of 135.08 Mb. The assembled 2.54 Gb anchored genome has achieved 98.9% completeness, and contains 35,927 genes, of which 94.15% could be functional annotated.