Skip navigation
Skip navigation

Clock model makes a large difference to age estimates of long-stemmed clades with no internal calibration: a test using Australian grasstrees

Crisp, Michael D.; Hardy, Nate B.; Cook, Lyn G.


BACKGROUND: Estimating divergence times in phylogenies using a molecular clock depends on accurate modeling of nucleotide substitution rates in DNA sequences. Rate heterogeneity among lineages is likely to affect estimates, especially in lineages with long stems and short crowns ("broom" clades) and no internal calibration. We evaluate the performance of the random local clocks model (RLC) and the more routinely employed uncorrelated lognormal relaxed clock model (UCLN) in situations in which a...[Show more]

CollectionsANU Research Publications
Date published: 2014-12-19
Type: Journal article
Source: BMC Evolutionary Biology
DOI: 10.1186/s12862-014-0263-3


File Description SizeFormat Image
Crisp et al Clock Model Makes a Large Difference 2014.pdf865.08 kBAdobe PDFThumbnail

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator