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DOI10.1073/pnas.1917836117
Convergent evolution of olfactory and thermoregulatory capacities in small amphibious mammals
Martinez Q.; Clavel J.; Esselstyn J.A.; Achmadi A.S.; Grohé C.; Pirot N.; Fabre P.-H.
Date Issued2020
ISSN0027-8424
startpage8958
endpage8965
Volume117Issue:16
Other AbstractOlfaction and thermoregulation are key functions for mammals. The former is critical to feeding, mating, and predator avoidance behaviors, while the latter is essential for homeothermy. Aquatic and amphibious mammals face olfactory and thermoregulatory challenges not generally encountered by terrestrial species. In mammals, the nasal cavity houses a bony system supporting soft tissues and sensory organs implicated in either olfactory or thermoregulatory functions. It is hypothesized that to cope with aquatic environments, amphibious mammals have expanded their thermoregulatory capacity at the expense of their olfactory system. We investigated the evolutionary history of this potential trade-off using a comparative dataset of three-dimensional (3D) CT scans of 189 skulls, capturing 17 independent transitions from a strictly terrestrial to an amphibious lifestyle across small mammals (Afrosoricida, Eulipotyphla, and Rodentia). We identified rapid and repeated loss of olfactory capacities synchronously associated with gains in thermoregulatory capacity in amphibious taxa sampled from across mammalian phylogenetic diversity. Evolutionary models further reveal that these convergences result from faster rates of turbinal bone evolution and release of selective constraints on the thermoregulatory-olfaction trade-off in amphibious species. Lastly, we demonstrated that traits related to vital functions evolved faster to the optimum compared to traits that are not related to vital functions. © 2020 National Academy of Sciences. All rights reserved.
enkeywordsAquatic habitat; Heat loss; Olfaction; Thermoregulation; Turbinal bones
Language英语
scopus keywordsAfrosoricida; animal tissue; Article; computer assisted tomography; convergent evolution; evolutionary rate; genetic variability; heat loss; Insectivora; mammal; morphological adaptation; morphological trait; nonhuman; olfactory system; phylogeny; priority journal; rodent; smelling; thermoregulation; three-dimensional imaging; turbinate; anatomy and histology; animal; diagnostic imaging; evolution; mammal; nose cavity; odor; physiology; swimming; thermoregulation; x-ray computed tomography; Animals; Biological Evolution; Body Temperature Regulation; Imaging, Three-Dimensional; Mammals; Nasal Cavity; Phylogeny; Smell; Swimming; Tomography, X-Ray Computed; Turbinates
journalProceedings of the National Academy of Sciences of the United States of America
Document Type期刊论文
Identifierhttp://gcip.llas.ac.cn/handle/2XKMVOVA/160980
AffiliationMartinez, Q., Institut des Sciences de l’Évolution de Montpellier (ISEM), CNRS, Institut de recherche pour le développement (IRD), Université de Montpellier (UM), UMR 5554, Montpellier, 34095, France; Clavel, J., Department of Life Sciences, Natural History Museum, London, SW7 5DB, United Kingdom, Univ. Lyon Laboratoire d’Ecologie des Hydrosystèmes Naturels et Anthropisés, UMR CNRS 5023, Université Claude Bernard Lyon 1, École Nationale des Travaux Publics de l’État (ENTPE), Villeurbanne, Cedex, F‐69622, France; Esselstyn, J.A., Museum of Natural Science, Louisiana State University, Baton Rouge, LA 70803, United States, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, United States; Achmadi, A.S., Museum Zoologicum Bogoriense, Research Center for Biology, Indonesian Institute of Sciences (LIPI), Cibinong, 16911, Indonesia; Grohé, C., Division of Paleontology, American Museum of Natural History, New York, NY 10024, United States, Laboratoire Paléontologie Évolution P...
Recommended Citation
GB/T 7714
Martinez Q.,Clavel J.,Esselstyn J.A.,et al. Convergent evolution of olfactory and thermoregulatory capacities in small amphibious mammals[J],2020,117(16).
APA Martinez Q..,Clavel J..,Esselstyn J.A..,Achmadi A.S..,Grohé C..,...&Fabre P.-H..(2020).Convergent evolution of olfactory and thermoregulatory capacities in small amphibious mammals.Proceedings of the National Academy of Sciences of the United States of America,117(16).
MLA Martinez Q.,et al."Convergent evolution of olfactory and thermoregulatory capacities in small amphibious mammals".Proceedings of the National Academy of Sciences of the United States of America 117.16(2020).
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