Genomes reveal pervasive distant hybridization in nature among cyprinid fishes

	Genomes reveal pervasive distant hybridization in nature among cyprinid fishes
	Ren, L; Tu, XL; Luo, MX; Liu, QZ; Cui, JL; Gao, X; Zhang, H; Tai, YK; Zeng, YY; Li, MD; Wu, C; Li, WH; Wang, J; Wu, DD; Liu, SJ
	2025
发表期刊	GIGASCIENCE
ISSN	2047-217X
卷号	14
摘要	Background Genomic data have unveiled a fascinating aspect of the evolutionary past, showing that the mingling of different species through hybridization has left its mark on the histories of numerous life forms. However, the relationship between hybridization events and the origins of cyprinid fishes remains unclear.Results In this study, we generated de novo assembled genomes of 8 cyprinid fishes and conducted phylogenetic analyses on 24 species. Widespread allele sharing across species boundaries was observed within 7 subfamilies of cyprinid fishes. Based on a systematic analysis of multiple tissues, we found that the testis exhibited a conserved pattern of divergence between the herbivorous Megalobrama amblycephala and the carnivorous Culter alburnus, suggesting a potential link to incomplete reproductive isolation. Significant differences in the expression of 4 genes (dpp2, ctrl, psb7, and ppce) in the liver and intestine, accompanied by variations in enzyme activities, indicated swift divergence in digestive enzyme secretion. Moreover, we identified introgressed genes linked to organ development in sympatric fishes with analogous feeding habits within the Cultrinae and Leuciscinae subfamilies.Conclusions Our findings highlight the significant role played by incomplete reproductive isolation and frequent gene flow events, particularly those associated with the development of digestive organs, in driving speciation among cyprinid fishes in diverse freshwater ecosystems.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/14520
专题	科研部门_进化与发育转录组学（吴东东）
推荐引用方式 GB/T 7714	Ren, L,Tu, XL,Luo, MX,et al. Genomes reveal pervasive distant hybridization in nature among cyprinid fishes[J]. GIGASCIENCE,2025,14.
APA	Ren, L.,Tu, XL.,Luo, MX.,Liu, QZ.,Cui, JL.,...&Liu, SJ.(2025).Genomes reveal pervasive distant hybridization in nature among cyprinid fishes.GIGASCIENCE,14.
MLA	Ren, L,et al."Genomes reveal pervasive distant hybridization in nature among cyprinid fishes".GIGASCIENCE 14(2025).

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