Deep-time origin of tympanic hearing in crown reptiles.

Autor:	Bronzati M; Fachbereich Geowissenschaften der Eberhard Karls University Tübingen, Sigwartsraße 10, Tübingen 72076, Germany; Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo 14040-901, Brazil. Electronic address: mariobronzati@alumni.usp.br., Vieceli FM; Instituto de Química da Universidade de São Paulo, Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil; Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas da Universidade de São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo 05508-000, Brazil., Botezelli VS; Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas da Universidade de São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo 05508-000, Brazil., Godoy PL; Departamento de Zoologia do Instituto de Biociências da Universidade de São Paulo, Rua do Matão, travessa 14, nº. 101, São Paulo 05508-090, Brazil; Anatomical Sciences Department, Stony Brook University, Stony Brook, NY 11794-8081, USA., Montefeltro FC; Departamento de Biologia e Zootecnia, Faculdade de Engenharia Unesp Câmpus de Ilha Solteira, Rua Monção 226, São Paulo 15385-086, Brazil., Nassif JPM; Department of Anatomy, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA., Luzete J; Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo 14040-901, Brazil., Ribeiro D; Departamento de Biologia e Zootecnia, Faculdade de Engenharia Unesp Câmpus de Ilha Solteira, Rua Monção 226, São Paulo 15385-086, Brazil., Yan CYI; Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas da Universidade de São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo 05508-000, Brazil., Werneburg I; Fachbereich Geowissenschaften der Eberhard Karls University Tübingen, Sigwartsraße 10, Tübingen 72076, Germany; Senckenberg Center for Human Evolution and Palaeoenvironment (SHEP) an der Universität Tübingen, Sigwartsraße 10, Tübingen 72076, Germany., Kohlsdorf T; Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Av. Bandeirantes 3900, Ribeirão Preto, São Paulo 14040-901, Brazil. Electronic address: tiana@usp.br.
Jazyk:	angličtina
Zdroj:	Current biology : CB [Curr Biol] 2024 Nov 18; Vol. 34 (22), pp. 5334-5340.e5. Date of Electronic Publication: 2024 Oct 10.
DOI:	10.1016/j.cub.2024.09.041
Abstrakt:	The invasion of terrestrial ecosystems by tetrapods (c. 375 million years [Ma]) represents one of the major evolutionary transitions in the history of life on Earth. The success of tetrapods on land is linked to evolutionary novelties. Among these, the evolution of a tympanic ear contributed to mitigating the problem of an impedance mismatch between the air and the fluid embedding sound-detecting hair cells in the inner ear. ¹ ^, ² ^, ³ Pioneering studies advocated that similarities in the tympanic ear of tetrapods could only result from a single origin of this structure in the group, ⁴ ^, ⁵ an idea later challenged by paleontological and developmental data. ⁴ ^, ⁶ ^, ⁷ ^, ⁸ Current evidence suggests that this sensory structure evolved independently in amphibians, mammals, and reptiles, ¹ ^, ⁶ but it remains uncertain how many times tympanic hearing originated in crown reptiles. ⁹ ^, ¹⁰ We combine developmental information with paleontological data to evaluate the evolution of the tympanic ear in reptiles from two complementary perspectives. Phylogenetically informed ancestral reconstruction analyses of a taxonomically broad sample of early reptiles point to the presence of a tympanic membrane as the ancestral condition of the crown group. Consistently, comparative analyses using embryos of lizards and crocodylians reveal similarities, including the formation of the tympanic membrane within the second pharyngeal arch, which has been previously reported for birds. Therefore, both our developmental and paleontological data suggest a single origin for the tympanic middle ear in the group, challenging the current paradigm of multiple acquisitions of tympanic hearing in living reptiles. Competing Interests: Declaration of interests The authors declare no competing interests. (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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