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Rampant tooth loss across 200 million years of frog evolution

التفاصيل البيبلوغرافية
العنوان: Rampant tooth loss across 200 million years of frog evolution
المؤلفون: Daniel J Paluh, Karina Riddell, Catherine M Early, Maggie M Hantak, Gregory FM Jongsma, Rachel M Keeffe, Fernanda Magalhães Silva, Stuart V Nielsen, María Camila Vallejo-Pareja, Edward L Stanley, David C Blackburn
المصدر: eLife, Vol 10 (2021)
بيانات النشر: eLife Sciences Publications Ltd, 2021.
سنة النشر: 2021
المجموعة: LCC:Medicine
LCC:Science
LCC:Biology (General)
مصطلحات موضوعية: teeth, edentulism, amphibians, toothlessness, Anura, Medicine, Science, Biology (General), QH301-705.5
الوصف: Teeth are present in most clades of vertebrates but have been lost completely several times in actinopterygian fishes and amniotes. Using phenotypic data collected from over 500 genera via micro-computed tomography, we provide the first rigorous assessment of the evolutionary history of dentition across all major lineages of amphibians. We demonstrate that dentition is invariably present in caecilians and salamanders, but teeth have been lost completely more than 20 times in frogs, a much higher occurrence of edentulism than in any other vertebrate group. The repeated loss of teeth in anurans is associated with a specialized diet of small invertebrate prey as well as shortening of the lower jaw, but it is not correlated with a reduction in body size. Frogs provide an unparalleled opportunity for investigating the molecular and developmental mechanisms of convergent tooth loss on a large phylogenetic scale.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2050-084X
Relation: https://elifesciences.org/articles/66926; https://doaj.org/toc/2050-084X
DOI: 10.7554/eLife.66926
URL الوصول: https://doaj.org/article/e03c7354719f44e7bbdd90ff883d0478
رقم الأكسشن: edsdoj.03c7354719f44e7bbdd90ff883d0478
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2050084X
DOI:10.7554/eLife.66926