Advances in plant genome construction

Since the first model plant, Arabidopsis thaliana(L.)Heynh, was sequenced in 2000, significant advances have been made in the sequencing of plant genomes over the last 21 years. With continuous development of technology, the cost of sequencing has greatly reduced and genome quality has significantly improved. The tremendous information hidden in these sequences should provide valuable resources for biological research. Here, we summarized and discussed the advances in plant reference genome de novo sequencing that have occurred over the last 21 years. We analyzed dynamic changes between the annual amount of sequenced plant genomes and sequencing technology, explored the relationship between sequenced genome size and chromosome ploidy and repetitive sequences, and summarized the main species classifications and distributions of sequenced plant genomes in the species phylogenetic tree. Finally, potential research hotpots of plant genomes were discussed.