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Recently，Teachers and students of Beijing Agricultural College and Institute of Biotechnology, Chinese Academy of Agricultural Sciences published an article in the well-known academic journal GigaScience (IF 9.2) published a paper titled "Revealing the Evolution and Adaptability of Lycopodium Plants through the Chromosome-level Reference Genome of Tetraploid" (Chromosome-level reference genome of tetraploidIsoetes sinensisResearch paper that provides insights into evolution and adaption of lycophytes。This study mapped the first high-quality Chinese water leek (Isoetes sinensis)genome，This is also the first reported tetraploid genome assembled at the chromosome level of a non-seed plant。This study provides an important basis for further analysis Bet365 gamesof the evolution and environmental adaptability of lycophytes and the protection of Chinese water leek。Beijing Agricultural College is the first unit，Teacher Cui Jinteng, senior laboratory engineer of the School of Landscape Architecture, and visiting graduate student of the Institute of Biotechnology, Chinese Academy of Agricultural Sciences、Zhu Yunke of Gezhi Boya Biotechnology is the first author of the paper，Researcher Liang Zhe from the Institute of Biotechnology, Chinese Academy of Agricultural Sciences is the corresponding author of the paper，Sisi Qian, an undergraduate of the Forestry College on our campus、Wang Shuxin、Cui Wenwen participated in this research work。

Chinese water leek (Isoetes sinensis) is considered the "giant panda of the plant world"，is the first batch of Class I key protected wild plants announced in my country，It is also a lycophyte plant unique to China。In all vascular plant groups，Lycophytes have the longest evolutionary history，To Earth’s Biodiversity、Soil formation and carbon dioxide fixation have an important impact。However，Compared to seed plants，The distribution area of ​​lycophytes has been greatly reduced，Several species of Lycopodium are endangered。Chinese water leek is an ancient tetraploid (2n = 4x = 44) aquatic lycophyte。Chinese water leek was once widely distributed，bet365 online casinoBut now it has disappeared from most of its habitat。Drawing of the genome map of Chinese water leek，In-depth understanding Bet365 gamesof the evolution and environmental adaptability of lycophytes，And it is of great significance to the protection of Chinese water leek。

This research combines the second generation、Three-generation genome sequencing and Hi-C data，Assembled containing 22 chromosomes 2.13 Gb Chinese water leek tetraploid genome，its scaffold N50 reaches 86.66 Mb。 Comparative analysis with the closely related diploid Taiwan water leek，Revealed the characteristics of the tetraploid genome and polyploidy of Lycopodium lycopersicum and the similarities and differences in the sedum acid metabolism pathway and stomatal development of Chinese water leek and Taiwan water leek。Comparative analysis with evolutionarily representative species，Discover some common genetic regulatory characteristics of Chinese water leek，such as transcriptional regulation、Abscisic acid、Cytokinin、Ethylene、Jasmonic acid and gibberellin signaling pathways, etc.。On the other hand，Some involved strigolactones were also found、Salicylic acid metabolism and stress response (cold、Drought、Important genes related to salinity and cadmium，"Lost" in Chinese bet365 slotswater leek and many lycophytes。These findings provide new insights into the development of lycophyte plants and their adaptability to adverse stress，Provides important information for the protection of Chinese water leek。