Whole-genome Sequencing Reveals Autooctoploidy in Chinese Sturgeon and Its Evolutionary Trajectories

作     者：Binzhong Wang Bin Wu Xueqing Liu Yacheng Hu Yao Ming Mingzhou Bai Juanjuan Liu Kan Xiao Qingkai Zeng Jing Yang Hongqi Wang Baifu Guo Chun Tan Zixuan Hu Xun Zhao Yanhong Li Zhen Yue Junpu Mei Wei Jiang Yuanjin Yang Zhiyuan Li Yong Gao Lei Chen Jianbo Jian Hejun Du 

作者机构：Hubei Key Laboratory of Three Gorges Project for Conservation of FishesYichang 443100China Chinese Sturgeon Research InstituteChina Three Gorges CorporationYichang 443100China Yangtze River Biodiversity Research CenterChina Three Gorges CorporationWuhan 430014China BGI-ShenzhenShenzhen 518083China BGI GenomicsBGI-ShenzhenShenzhen 518083China Department of Biotechnology and BiomedicineTechnical University of DenmarkLyngby 2800Denmark River Basin Complex Administration CenterChina Three Gorges CorporationYichang 443100China BGI-SanyaBGI-ShenzhenSanya 572025China Yangtze Eco-Environment Engineering Research CenterChina Three Gorges CorporationBeijing 100038China 

出 版 物：《Genomics, Proteomics & Bioinformatics》 (基因组蛋白质组与生物信息学报（英文版）)

年 卷 期：2024年第22卷第1期

页      面：51-65页

核心收录：

学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 100705[医学-微生物与生化药学] 1001[医学-基础医学(可授医学、理学学位)] 100103[医学-病原生物学] 10[医学] 

基　　金：supported by the Three Gorges Environmental Funds of China Three Gorges Corporation(Grant No.XN270) 

主　　题：Chinese sturgeon Whole-genome sequencing Autooctoploid Polyploidization and diploidization Whole-genome duplication 

摘      要：The order Acipenseriformes,which includes sturgeons and paddlefishes,represents“living fossilswith complex genomes that are good models for understanding whole-genome duplication(WGD)and ploidy evolution in ***,we sequenced and assembled the first high-quality chromosome-level genome for the complex octoploid Acipenser sinensis(Chinese sturgeon),a critically endangered species that also represents a poorly understood ploidy group in *** results show that *** is a complex autooctoploid species containing four kinds of octovalents(8n),a hexavalent(6n),two tetravalents(4n),and a divalent(2n).An analysis taking into account delayed rediploidization reveals that the octoploid genome composition of Chinese sturgeon results from two rounds of homologous WGDs,and further provides insights into the timing of its ploidy *** study provides the first octoploid genome resource of Acipenseriformes for understanding ploidy compositions and evolutionary trajectories of polyploid fishes.