Genomic characterization of an amphitriploid fish and insights into the evolutionary mechanisms of unisexual reproduction success  

作　　者：Qiaohong Lin Jie Mei 

机构地区：[1]State Key Laboratory of Freshwater Ecology and Biotechnology,Hubei Hongshan Laboratory,The Innovative Academy of Seed Design,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [2]University of Chinese Academy of Sciences,Beijing,China [3]College of Fisheries,Hubei Hongshan Laboratory,Huazhong Agricultural University,Wuhan,430070,China

出　　处：《Water Biology and Security》2022年第4期40-42,共3页水生生物与安全（英文）

基　　金：supported by the National Key Research&Development Program of China(2018YFD0901201);the China Agriculture Research System of MOF and MARA(CARS-46);the Foundation of Hubei Hongshan Laboratory(2021hszd020).

摘　　要：Loss of sexual reproduction is commonly regarded as an evolutionary dead end for metazoans(Comai,2005).Interestingly,some fishes or other vertebrates challenge this view as they overcome reproductive obstacles via unisexual reproduction and even exhibit a long-term evolutionary history of millions of years(Bi and Bogart,2010;Gui and Zhou,2010;Lampert and Schartl,2010;Li et al.,2014;Zhou and Gui,2017).However,the evolutionary mechanisms underlying the unisexual reproduction of polyploid vertebrates remain unclear.Recently,the research teams of Dr.Gui from Institute of Hydrobiology,Chinese Academy of Sciences,Dr.Wang from Northwestern Polytechnical University,Dr.Fang from BGI-Shenzhen,and other colleagues have provided new genomic insights into this puzzle.They have sequenced two genomes of the Carassius polyploid complex,including the unisexual hexaploid gibel carp(C.gibelio)and its close relative the sexual tetraploid crucian carp/goldfish(C.auratus),and assembled their high-quality subgenomes A and B.Comparative genomic anatomy of these provides valuable evidence for evolutionary mechanisms underlying unisexual reproduction(Wang et al.,2022).

关 键 词：GIBELIO EVOLUTIONARY REPRODUCTION 

分 类 号：S917[农业科学—水产科学]