DOI: 10.1073/pnas.2000872117
论文题名: Evolution of hyperossification expands skull diversity in frogs
作者: Paluh D.J. ; Stanley E.L. ; Blackburn D.C.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期: 15 起始页码: 8554
结束页码: 8562
语种: 英语
英文关键词: Anura
; Cranium
; Dermal ornamentation
; Geometric morphometrics
; Microcomputed tomography
Scopus关键词: animal experiment
; Anura
; article
; body size
; defense mechanism
; diet
; ecology
; micro-computed tomography
; morphometry
; nonhuman
; phylogeny
; predator
; skull
; anatomy and histology
; animal
; Anura
; biodiversity
; bone development
; classification
; evolution
; female
; growth, development and aging
; male
; phenotype
; skull
; Animals
; Anura
; Biodiversity
; Biological Evolution
; Female
; Male
; Osteogenesis
; Phenotype
; Phylogeny
; Skull
英文摘要: Frogs (Anura) are one of the most diverse vertebrate orders, comprising more than 7,000 species with a worldwide distribution and extensive ecological diversity. In contrast to other tetrapods, frogs have a highly derived body plan and simplified skull. In many lineages of anurans, increased mineralization has led to hyperossified skulls, but the function of this trait and its relationship with other aspects of head morphology are largely unexplored. Using three-dimensional morphological data from 158 species representing all frog families, we assessed wide-scale patterns of shape variation across all major lineages, reconstructed the evolutionary history of cranial hyperossification across the anuran phylogeny, and tested for relationships between ecology, skull shape, and hyperossification. Although many frogs share a conserved skull shape, several extreme forms have repeatedly evolved that commonly are associated with hyperossification, which has evolved independently more than 25 times. Variation in cranial shape is not explained by phylogenetic relatedness but is correlated with shifts in body size and ecology. The species with highly divergent, hyperossified skulls often have a specialized diet or a unique predator defense mechanism. Thus, the evolution of hyperossification has repeatedly facilitated the expansion of the head into multiple new shapes and functions. © 2020 National Academy of Sciences. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164252
Appears in Collections: 气候变化与战略
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作者单位: Paluh, D.J., Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, United States, Department of Biology, University of Florida, Gainesville, FL 32611, United States; Stanley, E.L., Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, United States; Blackburn, D.C., Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, United States
Recommended Citation:
Paluh D.J.,Stanley E.L.,Blackburn D.C.. Evolution of hyperossification expands skull diversity in frogs[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(15)