Teasing Apart Molecular- Versus Fossil-based Error Estimates when Dating Phylogenetic Trees: A Case Study in the Birch Family (Betulaceae)

@inproceedings{Forest2005TeasingAM,
  title={Teasing Apart Molecular- Versus Fossil-based Error Estimates when Dating Phylogenetic Trees: A Case Study in the Birch Family (Betulaceae)},
  author={F{\'e}lix Forest and Vincent Savolainen and Mark W. Chase and Richard Lupia and Anne Bruneau and Peter R. Crane},
  year={2005}
}
Abstract Fossils are widely used as calibration points in molecular-based dating studies, but their placement on a phylogenetic tree of extant species is always highly problematic. We explore some of the problems linked to calibration with fossils, in particular their position on the tree, and emphasize the use of multiple calibration points to obtain better estimates. We use a phylogenetic analysis of Betulaceae based on nuclear ribosomal DNA sequences (5S spacer and ITS) as a case study and… 
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    Annals of botany
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The fossil record remains the most reliable source of information for the calibration of phylogenetic trees, although associated assumptions and potential bias must be taken into account.
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TLDR
The fossil record and molecular clocks calibrated with alternating fossils indicate that the stem lineage of Betulaceae dates back to the Upper Cretaceous, the two subfamilies to the Palaeocene and the most recent common ancestors of each of the living genera to the mid- to late Miocene.
The complete chloroplast genomes of three Betulaceae species: implications for molecular phylogeny and historical biogeography
TLDR
This research elucidates the potential of chloroplast genome sequences in the application of developing molecular markers, studying evolutionary relationships and historical dynamic of Betulaceae, and reveals the advantages of using chlorop last genome data to illuminate those phylogenies that have not been well solved yet by traditional approaches in other plants.
Phylotranscriptomic analyses in plants using Betulaceae as an example
TLDR
Phylogenetic relationships within the Betulaceae family, largely consistent with those previously based on chloroplast DNA and nuclear internal transcribed spacer sequence variations, received high support for all clades and subclades, but it was found that support values for the sister relationship between two polyploid genera were lower than those between diploid groups if only a few orthologs were sampled.
Plastomes of Betulaceae and phylogenetic implications
TLDR
The dating analysis, based on four fossils, suggests that the most recent common ancestors of the extant genera date back to the mid‐ to late Miocene, and confirms that Betulaceae started to diversify in the upper Cretaceous/early Paleocene.
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