Dinosaur ossification centres in embryonic birds uncover developmental evolution of the skull

doi:10.1038/s41559-018-0713-1

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	Dinosaur ossification centres in embryonic birds uncover developmental evolution of the skull
	Smith-Paredes, Daniel 1,3; Nunez-Leon, Daniel 1,4; Soto-Acuna, Sergio 1; O'Connor, Jingmai 2; Botelho, Joao Francisco 1; Vargas, Alexander O.1
	2018-12-01
发表期刊	NATURE ECOLOGY & EVOLUTION
ISSN	2397-334X
卷号	2 期号:12 页码:1966-1973
摘要	Radical transformation of the skull characterizes bird evolution. An increase in the relative size of the brain and eyes was presumably related to the loss of two bones surrounding the eye, the prefrontal and postorbital. We report that ossification centres of the prefrontal and postorbital are still formed in bird embryos, which then fuse seamlessly to the developing nasal and frontal bones, respectively, becoming undetectable in the adult. The presence of a dinosaur-like ossification pattern in bird embryos is more than a trace of their evolutionary past: we show how persistent modularity of ossification centres has allowed for evolutionary re-organization of skull architecture in evolution. Our findings also demonstrate that enigmatic mesodermal cells forming the posterior region of the avian frontal correspond to the ossification centre of the postorbital, not the parietal, and link its failure to develop into an adult bone to its incorporation into the expanded braincase of birds.
DOI	10.1038/s41559-018-0713-1
关键词[WOS]	NEURAL CREST ; CRANIAL ANATOMY ; SKELETON ; THEROPODA ; SPECIMEN ; SEQUENCE ; INSIGHTS ; REPTILES ; CELLS ; BONE
收录类别	SCI
语种	英语
资助项目	Conicyt, Government of Chile[Anillo ACT172099] ; Conicyt, Government of Chile[Fondecyt 1150906]
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000450904100024
出版者	NATURE PUBLISHING GROUP
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/9168
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Smith-Paredes, Daniel; Vargas, Alexander O.
作者单位	1.Univ Chile, Fac Ciencias, Dept Biol, Lab Ontogenia & Filogenia, Santiago, Chile 2.Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 3.Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA 4.Univ Zurich, Palaontol Inst & Museum, Zurich, Switzerland
推荐引用方式 GB/T 7714	Smith-Paredes, Daniel,Nunez-Leon, Daniel,Soto-Acuna, Sergio,et al. Dinosaur ossification centres in embryonic birds uncover developmental evolution of the skull[J]. NATURE ECOLOGY & EVOLUTION,2018,2(12):1966-1973.
APA	Smith-Paredes, Daniel,Nunez-Leon, Daniel,Soto-Acuna, Sergio,O'Connor, Jingmai,Botelho, Joao Francisco,&Vargas, Alexander O..(2018).Dinosaur ossification centres in embryonic birds uncover developmental evolution of the skull.NATURE ECOLOGY & EVOLUTION,2(12),1966-1973.
MLA	Smith-Paredes, Daniel,et al."Dinosaur ossification centres in embryonic birds uncover developmental evolution of the skull".NATURE ECOLOGY & EVOLUTION 2.12(2018):1966-1973.

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