Tracing the genetic footprints of vertebrate landing in non-teleost ray-finned fishes

文献类型： 外文期刊

第一作者： Bi, Xupeng

作者： Bi, Xupeng;Yang, Liandong;Jiang, Haifeng;Gan, Xiaoni;Zeng, Honghui;He, Shunping;Bi, Xupeng;Pan, Hailin;Fang, Miaoquan;Yu, Hao;Cai, Yiran;He, Yuming;Yang, Huanming;Zhang, Guojie;Wang, Kun;Zhu, Chenglong;Qiu, Qiang;Wang, Wen;Wei, Qiwei;Yu, Daqi;Zhang, Yong E.;Yu, Daqi;Zhang, Yong E.;Yu, Daqi;Zhang, Yong E.;Zhu, Youan;Zhu, Min;Zhu, Youan;Zhu, Min;Jiang, Huifeng;Yang, Huanming;Yang, Huanming;Zhang, Yong E.;Wang, Wen;He, Shunping;Zhang, Guojie;Wang, Wen;Zhang, Guojie;Zhu, Min;He, Shunping;Zhang, Guojie

作者机构：

期刊名称：CELL （ 影响因子：38.637； 五年影响因子：38.62 ）

ISSN： 0092-8674

年卷期： 2021 年 184 卷 5 期

页码：

收录情况： SCI

摘要： Rich fossil evidence suggests that many traits and functions related to terrestrial evolution were present long before the ancestor of lobe- and ray-finned fishes. Here, we present genome sequences of the bichir, paddlefish, bowfin, and alligator gar, covering all major early divergent lineages of ray-finned fishes. Our analyses show that these species exhibit many mosaic genomic features of lobe- and ray-finned fishes. In particular, many regulatory elements for limb development are present in these fishes, supporting the hypothesis that the relevant ancestral regulation networks emerged before the origin of tetrapods. Transcriptome analyses confirm the homology between the lung and swim bladder and reveal the presence of functional lung-related genes in early ray-finned fishes. Furthermore, we functionally validate the essential role of a jawed vertebrate highly conserved element for cardiovascular development. Our results imply the ancestors of jawed vertebrates already had the potential gene networks for cardio-respiratory systems supporting air breathing.

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