The Genomes of Two Billfishes Provide Insights into the Evolution of Endothermy in Teleosts

Baosheng Wu, Chenguang Feng, Chenglong Zhu, Wenjie Xu, Yuan Yuan, Mingliang Hu, Ke Yuan, Yongxin Li, Yandong Ren, Yang Zhou, Haifeng Jiang, Qiang Qiu, Wen Wang, Shunping He, Kun Wang

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22 引用 (Scopus)

摘要

Endothermy is a typical convergent phenomenon which has evolved independently at least eight times in vertebrates, and is of significant advantage to organisms in extending their niches. However, how vertebrates other than mammals or birds, especially teleosts, achieve endothermy has not previously been fully understood. In this study, we sequenced the genomes of two billfishes (swordfish and sailfish), members of a representative lineage of endothermic teleosts. Convergent amino acid replacements were observed in proteins related to heat production and the visual system in two endothermic teleost lineages, billfishes and tunas. The billfish-specific genetic innovations were found to be associated with heat exchange, thermoregulation, and the specialized morphology, including elongated bill, enlarged dorsal fin in sailfish and loss of the pelvic fin in swordfish.

源语言英语
页(从-至)2413-2427
页数15
期刊Molecular Biology and Evolution
38
6
DOI
出版状态已出版 - 1 6月 2021

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