Molecular evidence of keratin and melanosomes in feathers of the Early Cretaceous bird Eoconfuciusornis

doi:10.1073/pnas.1617168113

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	Molecular evidence of keratin and melanosomes in feathers of the Early Cretaceous bird Eoconfuciusornis
	Pan, Yanhong 1; Zheng, Wenxia 2; Moyer, Alison E.2,7; O'Connor, Jingmai K.3; Wang, Min 3; Zheng, Xiaoting 4,5; Wang, Xiaoli 4; Schroeter, Elena R.2; Zhou, Zhonghe3 ; Schweitzer, Mary H.2,6
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2016-12-06
卷号	113 期号:49 页码:E7900-E7907
关键词	Keratinous Protein Immunogold Chemistem Melanosome Early Cretaceous
DOI	10.1073/pnas.1617168113
文献子类	Article
英文摘要	Microbodies associated with feathers of both nonavian dinosaurs and early birds were first identified as bacteria but have been reinterpreted as melanosomes. Whereas melanosomes in modern feathers are always surrounded by and embedded in keratin, melanosomes embedded in keratin in fossils has not been demonstrated. Here we provide multiple independent molecular analyses of both microbodies and the associated matrix recovered from feathers of a new specimen of the basal bird Eoconfuciusornis from the Early Cretaceous Jehol Biota of China. Our work represents the oldest ultrastructural and immunological recognition of avian beta-keratin from an Early Cretaceous (similar to 130-Ma) bird. We apply immunogold to identify protein epitopes at high resolution, by localizing antibody-antigen complexes to specific fossil ultrastructures. Retention of original keratinous proteins in the matrix surrounding electron-opaque microbodies supports their assignment as melanosomes and adds to the criteria employable to distinguish melanosomes frommicrobial bodies. Our work sheds new light on molecular preservation within normally labile tissues preserved in fossils.
WOS关键词	BETA BETA KERATINS ; EUMELANIN PIGMENT ; FOSSIL FEATHERS ; EVOLUTION ; COLOR ; THEROPOD ; DINOSAUR ; PLUMAGE ; CHINA ; PRESERVATION
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000389536700004
资助机构	State of North Carolina ; National Science Foundation(ECCS-1542015) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB18030501) ; National Natural Science Foundation of China(41472009 ; Open-Lab Grants of the LPS ; National Science Foundation USA (INSPIRE Program)(EAR-1344198 ; David and Lucile Packard Foundation ; 91514302) ; DGE01252376)
内容类型	期刊论文
源URL	[http://124.16.247.212/handle/311034/7410]
专题	古脊椎动物与古人类研究所_图书馆1 古脊椎动物与古人类研究所_古低等脊椎动物研究室
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China 2.North Carolina State Univ, Dept Biol Sci, Raleigh, NC 27695 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.Linyi Univ, Inst Geol & Paleontol, Linyi 276005, Shandong, Peoples R China 5.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China 6.North Carolina Museum Nat Sci, Raleigh, NC 27601 USA 7.Drexel Univ, Dept Biol, Philadelphia, PA 19104 USA
推荐引用方式 GB/T 7714	Pan, Yanhong,Zheng, Wenxia,Moyer, Alison E.,et al. Molecular evidence of keratin and melanosomes in feathers of the Early Cretaceous bird Eoconfuciusornis[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2016,113(49):E7900-E7907.
APA	Pan, Yanhong.,Zheng, Wenxia.,Moyer, Alison E..,O'Connor, Jingmai K..,Wang, Min.,...&Schweitzer, Mary H..(2016).Molecular evidence of keratin and melanosomes in feathers of the Early Cretaceous bird Eoconfuciusornis.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(49),E7900-E7907.
MLA	Pan, Yanhong,et al."Molecular evidence of keratin and melanosomes in feathers of the Early Cretaceous bird Eoconfuciusornis".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.49(2016):E7900-E7907.