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

doi:10.1073/pnas.1617168113

IVPP-IR > 中科院古脊椎所（2000年以后）

	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
	2016-12-06
发表期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷号	113 期号:49 页码:E7900-E7907
文章类型	Article
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.
关键词	Keratinous Protein Immunogold Chemistem Melanosome Early Cretaceous
WOS标题词	Science & Technology
DOI	10.1073/pnas.1617168113
关键词[WOS]	BETA BETA KERATINS ; EUMELANIN PIGMENT ; FOSSIL FEATHERS ; EVOLUTION ; COLOR ; THEROPOD ; DINOSAUR ; PLUMAGE ; CHINA ; PRESERVATION
收录类别	SCI
语种	英语
项目资助者	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)
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000389536700004
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7410
专题	中科院古脊椎所（2000年以后）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.

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