Marine origins and freshwater radiations of the otophysan fishes

IF 45.8 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2025-10-02 DOI:10.1126/science.adr4494

Juan Liu, Donald B. Brinkman, Alison M. Murray, Michael G. Newbrey, Zehua Zhou, Lisa L. Van Loon, Neil R. Banerjee

引用次数: 0

Abstract

Otophysans, known for their enhanced hearing enabled by the complex Weberian apparatus, comprise two-thirds of extant freshwater fish species. Previously, they were thought to have originated in fresh water before the breakup of Pangea, implying a nearly 80-million-year gap between the origin and oldest known fossil. However, the discovery of a Late Cretaceous freshwater otophysan challenges this view. Integrating fossil, morphological, and genomic data, we estimate a younger crown group origin of ~154 million years ago. Notably, ancestral range and habitat reconstructions indicate marine origins for the otophysan crown groups, with at least two transitions to fresh water. Functional simulations of the Weberian ossicles of this fossil suggest that the distinctive hearing capabilities of otophysans evolved in conjunction with fusion of hearing ossicle parts and freshwater adaptations.

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耳棘鱼的海洋起源和淡水辐射

耳盲鱼因其通过复杂的韦伯装置增强的听力而闻名，占现存淡水鱼种类的三分之二。此前，它们被认为是在盘古大陆分裂之前起源于淡水中，这意味着起源和已知最古老的化石之间存在近8000万年的差距。然而，晚白垩世淡水耳壶的发现挑战了这一观点。综合化石、形态学和基因组数据，我们估计一个更年轻的冠群起源于约1.54亿年前。值得注意的是，祖先范围和栖息地重建表明，耳冠群起源于海洋，至少有两次向淡水过渡。对这具化石的韦伯式听骨的功能模拟表明，耳科动物独特的听力能力是与听力听骨部分和淡水适应的融合一起进化而来的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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