From asymmetrical to balanced genomic diversification during rediploidization: Subgenomic evolution in allotetraploid fish
文献类型： 外文期刊
第一作者： Luo, Jing
作者： Luo, Jing;Chai, Jing;Lin, Guoliang;Liu, Xiaochuan;Huang, Feng;Wang, Lu;Yang, Huimin;Zhong, Li;Wang, Jing;Zhang, Ya-ping;Luo, Jing;Chai, Jing;Lin, Guoliang;Liu, Xiaochuan;Huang, Feng;Wang, Lu;Yang, Huimin;Zhong, Li;Wang, Jing;Zhang, Ya-ping;Chai, Jing;Wen, Yanling;Gao, Yun;Li, Lianwei;Ye, Chengxi;Ma, Zhanshan (Sam);Murphy, Robert W.;Lu, Xuemei;Zhang, Ya-ping;Tao, Min;Ren, Li;Li, Shengnan;Wang, Yude;Qin, Qinbo;Wang, Shi;Luo, Mi;Chen, Jie;Hu, Hong;Yuan, Liujiao;Liu, Shaojun;Tao, Min;Ren, Li;Li, Shengnan;Wang, Yude;Qin, Qinbo;Wang, Shi;Luo, Mi;Chen, Jie;Hu, Hong;Yuan, Liujiao;Liu, Shaojun;Wen, Yanling;Chen, Zeyu;Du, Zhenglin;Lu, Xuemei;Wu, Shigang;Ai, Cheng;Wang, Xiaobo;Ruan, Jue;Ye, Chengxi;Xu, Jian;Murphy, Robert W.;Meyer, Axel;Gui, Jianfang;Xu, Peng;Ruan, Jue;Chen, Z. Jeffrey;Chen, Z. Jeffrey;Lu, Xuemei;Wen, Yanling;Lu, Xuemei
作者机构：
期刊名称：SCIENCE ADVANCES （ 影响因子：14.136； 五年影响因子：16.446 ）
ISSN： 2375-2548
年卷期： 2020 年 6 卷 22 期
页码：
收录情况： SCI
摘要： A persistent enigma is the rarity of polyploidy in animals, compared to its prevalence in plants. Although animal polyploids are thought to experience deleterious genomic chaos during initial polyploidization and subsequent rediploidization processes, this hypothesis has not been tested. We provide an improved reference-quality de novo genome for allotetraploid goldfish whose origin dates to similar to 15 million years ago. Comprehensive analyses identify changes in subgenomic evolution from asymmetrical oscillation in goldfish and common carp to diverse stabilization and balanced gene expression during continuous rediploidization. The homoeologs are coexpressed in most pathways, and their expression dominance shifts temporally during embryogenesis. Homoeolog expression correlates negatively with alternation of DNA methylation. The results show that allotetraploid cyprinids have a unique strategy for balancing subgenomic stabilization and diversification. Rediploidization process in these fishes provides intriguing insights into genome evolution and function in allopolyploid vertebrates.
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