气候变化领域集成服务门户(CCPortal): Divergence-time estimates for hominins provide insight into encephalization and body mass trends in human evolution

CCPortal

DOI	10.1038/s41559-021-01431-1
	Divergence-time estimates for hominins provide insight into encephalization and body mass trends in human evolution
	Püschel H.P.; Bertrand O.C.; O’Reilly J.E.; Bobe R.; Püschel T.A.
发表日期	2021
ISSN	2397-334X
起始页码	808
结束页码	819
卷号	5 期号:6
英文摘要	Quantifying speciation times during human evolution is fundamental as it provides a timescale to test for the correlation between key evolutionary transitions and extrinsic factors such as climatic or environmental change. Here, we applied a total evidence dating approach to a hominin phylogeny to estimate divergence times under different topological hypotheses. The time-scaled phylogenies were subsequently used to perform ancestral state reconstructions of body mass and phylogenetic encephalization quotient (PEQ). Our divergence-time estimates are consistent with other recent studies that analysed extant species. We show that the origin of the genus Homo probably occurred between 4.30 and 2.56 million years ago. The ancestral state reconstructions show a general trend towards a smaller body mass before the emergence of Homo, followed by a trend towards a greater body mass. PEQ estimations display a general trend of gradual but accelerating encephalization evolution. The obtained results provide a rigorous temporal framework for human evolution. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	animal; evolution; hominid; human; phylogeny; Animals; Biological Evolution; Hominidae; Humans; Phylogeny
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256953
作者单位	School of GeoSciences, University of Edinburgh, Grant Institute, Edinburgh, United Kingdom; MRC Human Genetics Unit, MRC Institute of Genetics & Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, United Kingdom; Primate Models for Behavioural Evolution Lab, Institute of Cognitive and Evolutionary Anthropology, School of Anthropology and Museum Ethnography, University of Oxford, Oxford, United Kingdom; Gorongosa National Park, Sofala, Mozambique
推荐引用方式 GB/T 7714	Püschel H.P.,Bertrand O.C.,O’Reilly J.E.,et al. Divergence-time estimates for hominins provide insight into encephalization and body mass trends in human evolution[J],2021,5(6).
APA	Püschel H.P.,Bertrand O.C.,O’Reilly J.E.,Bobe R.,&Püschel T.A..(2021).Divergence-time estimates for hominins provide insight into encephalization and body mass trends in human evolution.Nature Ecology & Evolution,5(6).
MLA	Püschel H.P.,et al."Divergence-time estimates for hominins provide insight into encephalization and body mass trends in human evolution".Nature Ecology & Evolution 5.6(2021).