Fossil evidence sheds light on sexual selection during the early evolution of birds

doi:10.1073/pnas.2309825120

IVPP-IR

	Fossil evidence sheds light on sexual selection during the early evolution of birds
	Zhou, Yibo 1,2; Pan, Yanhong 1,2; Wang, Min3 ; Wang, Xiaoli 4,5; Zheng, Xiaoting 4,5; Zhou, Zhonghe3
	2024-01-16
发表期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
卷号	121 期号:3 页码:9
通讯作者	Pan, Yanhong(panyanhong@nju.edu.cn) ; Wang, Min(wangmin@ivpp.ac.cn) ; Zhou, Zhonghe(zhouzhonghe@ivpp.ac.cn)
摘要	The impact of sexual selection on the evolution of birds has been widely acknowledged. Although sexual selection has been hypothesized as a driving force in the occurrences of numerous morphological features across theropod evolution, this hypothesis has yet to be comprehensively tested due to challenges in identifying the sex of fossils and by the limited sample size. Confuciusornis sanctus is arguably the best-known early avialan and is represented by thousands of well-preserved specimens from the Early Cretaceous Jehol lagerstatte, which provides us with a chance to decipher the strength of sexual selection on extinct vertebrates. Herein, we present a morphometric study of C. sanctus based on the largest sample size of this taxon collected up to now. Our results indicate that the characteristic elongated paired rectrices is a sexually dimorphic trait and statistically robust inferences of the sexual dimorphism in size, shape, and allometry that have been established, providing the earliest known sexual dimorphism in avian evolution. Our findings suggest that sexual selection, in conjunction with natural selection, does act upon body size and limb length ratio in early birds, thereby promoting a deeper understanding of the role of sexual selection in large-scale phylogenetic evolution.
关键词	Aves sexual dimorphism Mesozoic sexual selection allometry
DOI	10.1073/pnas.2309825120
关键词[WOS]	TUFTED MALACHITE SUNBIRD ; MALE MATING SUCCESS ; SIZE DIMORPHISM ; BODY-SIZE ; TAIL ORNAMENTATION ; SHAPE DIMORPHISM ; FEMALE CHOICE ; CONFUCIUSORNIS ; ALLOMETRY ; LENGTH
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001167400200007
出版者	NATL ACAD SCIENCES
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23523
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Pan, Yanhong; Wang, Min; Zhou, Zhonghe
作者单位	1.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 2.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 4.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 5.Shandong Tianyu Museum Nat, Pingyi 273300, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Yibo,Pan, Yanhong,Wang, Min,et al. Fossil evidence sheds light on sexual selection during the early evolution of birds[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2024,121(3):9.
APA	Zhou, Yibo,Pan, Yanhong,Wang, Min,Wang, Xiaoli,Zheng, Xiaoting,&Zhou, Zhonghe.(2024).Fossil evidence sheds light on sexual selection during the early evolution of birds.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,121(3),9.
MLA	Zhou, Yibo,et al."Fossil evidence sheds light on sexual selection during the early evolution of birds".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 121.3(2024):9.