Chromosome-level genome assembly of Poropuntius huangchuchieni

Poropuntius huangchuchieni is a diploid species in the family cyprinid,
widely distributed in Mekong and Red River basins. Previous study
suggested that it is one of the most closely related diploid ancestral
species to common carp, which has allotetraploidized genome generated by
merging two diploid genomes during evolution. Therefore, P. huangchuchieni
is an ideal diploid model for polyploid evolution study in Cyprinidae.
Here, we report a high-quality chromosome-level genome assembly of P.
huangchuchieni by the integrating of the Oxford Nanopore Technology and
Hi-C technology. The assembled genome size was 1021.38 Mb with a scaffold
N50 of 32.93 Mb. More than 47.61% of the genome was identified as
repetitive elements, and 895.66 Mb sequences were anchored onto 25
chromosomes. Of the 24,099 predicted protein-coding genes, 97.57% were
functional annotated. Approximately 95.9% of complete BUSCOs were detected
in the genome.The high-quality genomic data of P. huangchuchieni provides
an ancestral diploid reference for the evolution and adaptation of
allotetraploid carps.