DNA from an extinct plant

@article{Poinar1993DNAFA,
  title={DNA from an extinct plant},
  author={Hendrik N. Poinar and Ra{\'u}l J. Cano and George Poinar},
  journal={Nature},
  year={1993},
  volume={363},
  pages={677-677}
}

Evolutionary rates analysis of Leguminosae implicates a rapid diversification of lineages during the tertiary.

TLDR
Tertiary macrofossils of the flowering plant family Leguminosae were used as time constraints to estimate ages of the earliest branching clades identified in separate plastid matK and rbcL gene phylogenies, pointing to a rapid family-wide diversification, and predict few if any legume fossils prior to the Cenozoic.

Problems of reproducibility – does geologically ancient DNA survive in amber–preserved insects?

TLDR
Attempts to reproduce DNA sequences from amber– and copal–preserved bees and flies have failed to detect any authentic ancient insect DNA, suggesting that DNA does not survive over millions of years even in amber, the most promising of fossil environments.

The age of museomics : How to get genomic information from museum specimens of Lepidoptera

TLDR
A targeted enrichment approach to sequence nuclear loci from museum specimens dating back to 1892 for 35 taxa across the order Lepidoptera is used, and the usefulness of various museomics applications are shown, including the use of TE and WGS for phylogenomic studies.

DNA from resin-embedded organisms: Past, present and future

TLDR
It is demonstrated here, for the first time, that although a labile molecule, DNA is still present in platypodine beetles embedded in six- year-old and two-year-old resin pieces from Hymenaea verrucosa collected in Madagascar, concluding that it is therefore possible to study genomics from resin-embedded organisms, although the time limits remain to be determined.

Ancient DNA Research in Maritime and Underwater Archaeology: Pitfalls, Promise, and Future Directions

The rapid progression of DNA technology allows for the application of recently developed techniques to an ever-growing body of archaeological and environmental material recovered from submerged

Early gymnosperms

  • Introduction to Plant Fossils
  • 2019

Index

  • Introduction to Plant Fossils
  • 2019

Sphenophytes

  • Introduction to Plant Fossils
  • 2019

Plate Section (PDF Only)

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Chloroplast DNA sequence from a Miocene Magnolia species

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The extraction of DNA from fossil leaf samples from the Miocene Clarkia deposit, the amplification of an 820-base pair DNA fragment from the chloroplast gene rbcL from a fossil of the genus Magnolia, and its subsequent sequencing extend the ability to analyse ancient DNA and may open new avenues into problems in palaeobotany, biogeography, and in the calibration of mutation rates.

The neighbor-joining method: a new method for reconstructing phylogenetic trees.

TLDR
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