Relaxed phylogenetics and dating with confidence 2016
However, rates of species origination and extinction can vary over time during evolutionary radiations and among lineages (Rabosky and Lovette, 2008; Morlon et al., 2010). Therefore, several authors have developed methods to estimate changes in diversification rates through time and across lineages from phylogenetic data of extant species (Nee et al., 1994; Paradis et al., 2004; Rabosky, 2009). doi: 10.1016/j.syapm.20 Pub Med Abstract | Cross Ref Full Text | Google Scholar Tamura, K., Stecher, G., Peterson, D., Filipski, A., and Kumar, S. MEGA6: molecular evolutionary genetics analysis version 6.0.
From the chronograms obtained, we carried out a diversification analysis using several approaches. No use, distribution or reproduction is permitted which does not comply with these terms.We also determined the constant of diversification (λ) values, which in all cases were very similar, about 0.01 species/Ma, a value clearly lower than those described for different eukaryotes. Prokaryotes are an essential and largely unnoticed component of the earth’s biota. Although the speciation models and speciation rates in eukaryotes have traditionally been established by analyzing the fossil record data, this is frequently incomplete, and not always available.More recently, several methods based on molecular sequence data have been developed to estimate speciation and extinction rates from phylogenies reconstructed from contemporary taxa.