منابع مشابه
Dating divergence of Polystigma and other Sordariomycetes
Studies on the evolutionary history of ascomycetes in terms of time scale will help to understand historical patterns that shape their biodiversity. Until now most of dating studies of ascomycetes have focused on major events in fungal evolution but not on divergence events within smaller groups of fungi e.g. within Sordariomycetes. We used molecular dating to estimate the time of separation of...
متن کاملDivergence Time Estimation using BEAST v2.∗ Dating Species Divergences with the Fossilized Birth-Death Process
Central among the questions explored in biology are those that seek to understand the timing and rates of evolutionary processes. Accurate estimates of species divergence times are vital to understanding historical biogeography, estimating diversification rates, and identifying the causes of variation in rates of molecular evolution. This tutorial will provide a general overview of divergence t...
متن کاملDating Divergence Times in Phylogenies
Thank you all, and especially Kåre Bremer, for accepting me as a PhD student back in 2002.
متن کاملDating phylogenies with sequentially sampled tips.
We develop a Bayesian Markov chain Monte Carlo (MCMC) algorithm for estimating divergence times using sequentially sampled molecular sequences. This type of data is commonly collected during viral epidemics and is sometimes available from different species in ancient DNA studies. We derive the distribution of ages of nodes in the tree under a birth-death-sequential-sampling (BDSS) model and use...
متن کاملConceptual issues in Bayesian divergence time estimation.
Bayesian inference of species divergence times is an unusual statistical problem, because the divergence time parameters are not identifiable unless both fossil calibrations and sequence data are available. Commonly used marginal priors on divergence times derived from fossil calibrations may conflict with node order on the phylogenetic tree causing a change in the prior on divergence times for...
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ژورنال
عنوان ژورنال: Trends in Genetics
سال: 2015
ISSN: 0168-9525
DOI: 10.1016/j.tig.2015.08.001