Selecting and averaging relaxed clock models in Bayesian tip dating of Mesozoic birds

doi:10.1017/pab.2021.42

IVPP-IR > 中科院古脊椎所（2000年以后）

	Selecting and averaging relaxed clock models in Bayesian tip dating of Mesozoic birds
	Zhang, Chi 1,2
	2021-12-17
发表期刊	PALEOBIOLOGY
ISSN	0094-8373
页码	13
通讯作者	Zhang, Chi(zhangchi@ivpp.ac.cn)
摘要	Relaxed clock models are fundamental in Bayesian clock dating, but a single distribution characterizing the clock variation is typically selected. Hence, I developed a new reversible-jump Markov chain Monte Carlo (rjMCMC) algorithm for drawing posterior samples between the independent lognormal (ILN) and independent gamma rates (IGR) clock models. The ability of the rjMCMC algorithm to infer the true model was verified through simulations. I then applied the algorithm to the Mesozoic bird data previously analyzed under the white noise (WN) clock model. In comparison, averaging over the ILN and IGR models provided more reliable estimates of the divergence times and evolutionary rates. The ILN model showed slightly better fit than the IGR model and much better fit than the autocorrelated lognormal (ALN) clock model. When the data were partitioned, different partitions showed heterogeneous model fit for ILN and IGR clocks. The implementation provides a general framework for selecting and averaging relaxed clock models in Bayesian dating analyses.
DOI	10.1017/pab.2021.42
关键词[WOS]	DIVERGENCE-TIME ; MOLECULAR CLOCKS ; PERFORMANCE
收录类别	SCI
语种	英语
资助项目	Hundred Young Talents Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000]
项目资助者	Hundred Young Talents Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology ; Evolutionary Biology ; Paleontology
WOS类目	Biodiversity Conservation ; Ecology ; Evolutionary Biology ; Paleontology
WOS记录号	WOS:000735374900001
出版者	CAMBRIDGE UNIV PRESS
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/21494
专题	中科院古脊椎所（2000年以后）
通讯作者	Zhang, Chi
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chi. Selecting and averaging relaxed clock models in Bayesian tip dating of Mesozoic birds[J]. PALEOBIOLOGY,2021:13.
APA	Zhang, Chi.(2021).Selecting and averaging relaxed clock models in Bayesian tip dating of Mesozoic birds.PALEOBIOLOGY,13.
MLA	Zhang, Chi."Selecting and averaging relaxed clock models in Bayesian tip dating of Mesozoic birds".PALEOBIOLOGY (2021):13.