Article
Rate variation and estimation of divergence times using strict and relaxed clocks.
BMC evolutionary biology - 26 Sept 2011
Brown Richard P, Yang Ziheng
Abstract excerpt
BACKGROUND: Understanding causes of biological diversity may be greatly enhanced by knowledge of divergence times. Strict and relaxed clock models are used in Bayesian estimation of divergence times. We examined whether: i) strict clock models are generally more appropriate in shallow phylogenies where rate variation is expected to be low, ii) the likelihood ratio test of the clock (LRT) reliably informs which...
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