Abstract Utricularia aurea Lour. is an aquatic herbaceous plant with yellow flowers and a unique insect-trapping mechanism, distributed in several regions of China and other Asian countries. In this study, we assembled a chromosome-scale genome of U. aurea with a size of approximately 180.31 Mb and a contig N50 length of 7.2 Mb. Using Oxford Nanopore long reads and Hi-C sequencing data, 99.99% of the assembled sequences were anchored onto 20 pseudo-chromosomes. We predicted a total of 33,365 protein-coding genes, of which 97.33% were functionally annotated using public databases including NR, GO, KOG, KEGG, and Swissprot. Additionally, we identified 117 rRNAs, 509 sRNAs and 382 tRNAs from the genome. The chromosome-scale Utricularia aurea genome will facilitate investigations into the genomic basis of its carnivorous adaptation, improve our understanding of the evolution history of carnivorous habits in Utricularia , and enrich research on the adaptive evolution of carnivorous plant genomes.
Yu et al. (Mon,) studied this question.