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The molecular evolution of feathers with direct evidence from fossils
Pan, Yanhong (泮燕红)1,2; Zheng, Wenxia3; Sawyer, Roger H.4; Pennington, Michael W.5; Zheng, Xiaoting6,7; Wang, Xiaoli6,7; Wang, Min8,9; Hu, Liang1,2,10; O'Connor, Jingmai8,9; Zhao, Tao1,2; Li, Zhiheng8,9; Schroeter, Elena R.3; Wu, Feixiang8,9; Xu, Xing8,9; Zhou, Zhonghe8,9,10; Schweitzer, Mary H.3,11
2019-02-19
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume116Issue:8Pages:3018-3023
Abstract

Dinosaur fossils possessing integumentary appendages of various morphologies, interpreted as feathers, have greatly enhanced our understanding of the evolutionary link between birds and dinosaurs, as well as the origins of feathers and avian flight. In extant birds, the unique expression and amino acid composition of proteins in mature feathers have been shown to determine their biomechanical properties, such as hardness, resilience, and plasticity. Here, we provide molecular and ultrastructural evidence that the pennaceous feathers of the Jurassic nonavian dinosaur Anchiornis were composed of both feather beta-keratins and alpha-keratins. This is significant, because mature feathers in extant birds are dominated by beta-keratins, particularly in the barbs and barbules forming the vane. We confirm here that feathers were modified at both molecular and morphological levels to obtain the biomechanical properties for flight during the dinosaur-bird transition, and we show that the patterns and timing of adaptive change at the molecular level can be directly addressed in exceptionally preserved fossils in deep time.

KeywordFeather Evolution Keratin Expression Fossil-feather Ultrastructure Dinosaur-bird Transition Biomechanical Properties
DOI10.1073/pnas.1815703116
Language英语
WOS KeywordBeta Beta Keratins ; Integumentary Structures ; Origin ; Theropod ; Dinosaur ; Alpha ; Diversification ; Birds ; China
Funding Projectsecond Tibetan Plateau Scientific Expedition Program[XDA20070300] ; NSFC[41688103] ; NSFC[41872016] ; Chinese Academy of Sciences[XDB26000000] ; Chinese Academy of Sciences[XDA20070203] ; State Key Laboratory of Paleaobiology and Stratigraphy ; National Science Foundation[EAR-1344198] ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; State of North Carolina ; Key Laboratory of Unconventional Oil and Gas Geology, Analytical Center of Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences ; Center of Electron Microscopy, Zhejiang University
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000459074400039
Funding Organizationsecond Tibetan Plateau Scientific Expedition Program ; NSFC ; Chinese Academy of Sciences ; State Key Laboratory of Paleaobiology and Stratigraphy ; National Science Foundation ; Youth Innovation Promotion Association, Chinese Academy of Sciences ; State of North Carolina ; Key Laboratory of Unconventional Oil and Gas Geology, Analytical Center of Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences ; Center of Electron Microscopy, Zhejiang University
PublisherNATL ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/15947
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorPan, Yanhong (泮燕红); Zhou, Zhonghe; Schweitzer, Mary H.
Affiliation1.Chinese Acad Sci, Key Lab Econ Stratig & Palaeogeog, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.North Carolina State Univ, Dept Biol Sci, Raleigh, NC 27695 USA
4.Univ South Carolina, Dept Biol Sci, Columbia, SC 29205 USA
5.AmbioPharm Inc, North Augusta, SC 29842 USA
6.Lingyi Univ, Inst Geol & Paleontol, Lingyi City 27605, Shandong, Peoples R China
7.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China
8.Chinese Acad Sci, CAS Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
9.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
10.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
11.North Carolina Museum Nat Sci, Raleigh, NC 27601 USA
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Pan, Yanhong ,Zheng, Wenxia,Sawyer, Roger H.,et al. The molecular evolution of feathers with direct evidence from fossils[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(8):3018-3023.
APA Pan, Yanhong .,Zheng, Wenxia.,Sawyer, Roger H..,Pennington, Michael W..,Zheng, Xiaoting.,...&Schweitzer, Mary H..(2019).The molecular evolution of feathers with direct evidence from fossils.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(8),3018-3023.
MLA Pan, Yanhong ,et al."The molecular evolution of feathers with direct evidence from fossils".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.8(2019):3018-3023.
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