Lung evolution in vertebrates and the water-to-land transition
Lung evolution in vertebrates and the water-to-land transition
Abstract A crucial evolutionary change in vertebrate history was the Palaeozoic (Devonian ~400 million years ago) water-to-land transition, allowed by key morphological and physiological modifications including the acquisition of lungs. Nonetheless, the origin and early evolution of vertebrate lungs remain highly controversial, particularly whether the ancestral state was paired or unpaired. Due to the rarity of fossil soft tissue preservation, lung evolution can only be traced based on the extant phylogenetic bracket. Here we investigate, for the first time, lung morphology in extensive developmental series of key living lunged osteichthyans using synchrotron X-ray microtomography and histology. Our results shed light on the primitive state of vertebrate lungs as unpaired, evolving to be truly paired in the lineage towards the tetrapods. The water-to-land transition confronted profound physiological challenges and paired lungs were decisive for increasing the surface area and the pulmonary compliance and volume, especially during the air-breathing on land.
Yabumoto Yoshitaka、King Andrew、Hoshino Masato、Okabe Masataka、Brito Paulo M.、Isogai Sumio、Matsumoto Ryoko、Gueriau Pierre、Uesugi Kentaro、Hirasawa Tatsuya、Cupello Camila、Saruwatari Toshiro、Tatsumi Norifumi
Kitakyushu Museum of Natural History and Human HistorySynchrotron SOLEIL, L?ˉorme des Merisiers Saint-AubinJapan Synchrotron Radiation Research Institute (JASRI/SPring-8)Department of Anatomy, The Jikei University School of MedicineDepartamento de Zoologia-IBRAG, Universidade do Estado do Rio de Janeiro, R. S?o Francisco XavierDepartment of Anatomy, Iwate Medical University School of MedicineKanagawa Prefectural Museum of Natural HistoryInstitute of Earth Sciences, University of Lausanne||Universit¨| Paris-Saclay, CNRS, minist¨¨re de la Culture, UVSQ, MNHN, Institut photonique d?ˉanalyse non-destructive europ¨|en des mat¨|riaux anciensJapan Synchrotron Radiation Research Institute (JASRI/SPring-8)Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo 7-3-1 HongoDepartamento de Zoologia-IBRAG, Universidade do Estado do Rio de Janeiro, R. S?o Francisco XavierAtmosphere and Ocean Research Institute, The University of Tokyo||Seikei Education and Research Center for Sustainable DevelopmentDepartment of Anatomy, The Jikei University School of Medicine
古生物学生理学动物学
Yabumoto Yoshitaka,King Andrew,Hoshino Masato,Okabe Masataka,Brito Paulo M.,Isogai Sumio,Matsumoto Ryoko,Gueriau Pierre,Uesugi Kentaro,Hirasawa Tatsuya,Cupello Camila,Saruwatari Toshiro,Tatsumi Norifumi.Lung evolution in vertebrates and the water-to-land transition[EB/OL].(2025-03-28)[2025-08-02].https://www.biorxiv.org/content/10.1101/2022.02.14.480340.点此复制
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