数字农科院2.0

Maternal dominance contributes to subgenome differentiation in allopolyploid fishes

文献类型： 外文期刊

作者： Min Rui Xuan Xu;Zhen Yang Liao;Jordan R. Brock;Kang Du;Guo Yin Li;Zhi Qiang Chen;Ying Hao Wang;Zhong Nan Gao;Gaurav Agarwal;Kevin H.C. Wei;Feng Shao;Shuai Pang;Adrian E. Platts;Jozefien van de Velde;Hong Min Lin;Scott J. Teresi;Kevin Bird;Chad E. Niederhuth;Jin Gen Xu;Guo Hua Yu;Jian Yuan Yang;Si Fa Dai;Andrew Nelson;Ingo Braasch;Xiao Gu Zhang;Manfred Schartl;Patrick P. Edger;Min Jin Han;Hua Hao Zhang

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关键词： （2-0-2）

期刊名称： Nature Communications

ISSN： -

年卷期： 2024 年 14 卷 1 期

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收录情况： SCIE（2024版）

摘要： Teleost fishes, which are the largest and most diverse group of living vertebrates, have a rich history of ancient and recent polyploidy. Previous studies of allotetraploid common carp and goldfish (cyprinids) reported a dominant subgenome, which is more expressed and exhibits biased gene retention. However, the underlying mechanisms contributing to observed ‘subgenome dominance’ remains poorly understood. Here we report high-quality genomes of twenty-one cyprinids to investigate the origin and subsequent subgenome evolution patterns following three independent allopolyploidy events. We identify the closest extant relatives of the diploid progenitor species, investigate genetic and epigenetic differences among subgenomes, and conclude that observed subgenome dominance patterns are likely due to a combination of maternal dominance and transposable element densities in each polyploid. These findings provide an important foundation to understanding subgenome dominance patterns observed in teleost fishes, and ultimately the role of polyploidy in contributing to evolutionary innovations.

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