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Of dups and dinos : evolution at the K/Pg boundary

Rolf Lohaus (UGent) and Yves Van de Peer (UGent)
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Bioinformatics: from nucleotids to networks (N2N)
Abstract
Fifteen years into sequencing entire plant genomes, more than 30 paleopolyploidy events could be mapped on the tree of flowering plants (and many more when also transcriptome data sets are considered). While some genome duplications are very old and have occurred early in the evolution of dicots and monocots, or even before, others are more recent and seem to have occurred independently in many different plant lineages. Strikingly, a majority of these duplications date somewhere between 55 and 75 million years ago (mya), and thus likely correlate with the K/Pg boundary. If true, this would suggest that plants that had their genome duplicated at that time, had an increased chance to survive the most recent mass extinction event, at 66 mya, which wiped out a majority of plant and animal life, including all non-avian dinosaurs. Here, we review several processes, both neutral and adaptive, that might explain the establishment of polyploid plants, following the K/Pg mass extinction.
Keywords
ARABIDOPSIS, MECHANISMS, DIVERSIFICATION, ADAPTATION, HYBRIDIZATION, PLANTS, POLYPLOIDY, GENETIC-VARIATION, GENOME DUPLICATION, INVASION

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Citation

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Chicago
Lohaus, Rolf, and Yves Van de Peer. 2016. “Of Dups and Dinos : Evolution at the K/Pg Boundary.” Ed. Yves Van de Peer and J Chris Pires. Current Opinion in Plant Biology 30: 62–69.
APA
Lohaus, R., & Van de Peer, Y. (2016). Of dups and dinos : evolution at the K/Pg boundary. (Y. Van de Peer & J. C. Pires, Eds.)CURRENT OPINION IN PLANT BIOLOGY, 30, 62–69.
Vancouver
1.
Lohaus R, Van de Peer Y. Of dups and dinos : evolution at the K/Pg boundary. Van de Peer Y, Pires JC, editors. CURRENT OPINION IN PLANT BIOLOGY. 2016;30:62–9.
MLA
Lohaus, Rolf, and Yves Van de Peer. “Of Dups and Dinos : Evolution at the K/Pg Boundary.” Ed. Yves Van de Peer & J Chris Pires. CURRENT OPINION IN PLANT BIOLOGY 30 (2016): 62–69. Print.
@article{7244154,
  abstract     = {Fifteen years into sequencing entire plant genomes, more than 30 paleopolyploidy events could be mapped on the tree of flowering plants (and many more when also transcriptome data sets are considered). While some genome duplications are very old and have occurred early in the evolution of dicots and monocots, or even before, others are more recent and seem to have occurred independently in many different plant lineages. Strikingly, a majority of these duplications date somewhere between 55 and 75 million years ago (mya), and thus likely correlate with the K/Pg boundary. If true, this would suggest that plants that had their genome duplicated at that time, had an increased chance to survive the most recent mass extinction event, at 66 mya, which wiped out a majority of plant and animal life, including all non-avian dinosaurs. Here, we review several processes, both neutral and adaptive, that might explain the establishment of polyploid plants, following the K/Pg mass extinction.},
  author       = {Lohaus, Rolf and Van de Peer, Yves},
  editor       = {Van de Peer, Yves and Pires, J Chris},
  issn         = {1369-5266},
  journal      = {CURRENT OPINION IN PLANT BIOLOGY},
  keyword      = {ARABIDOPSIS,MECHANISMS,DIVERSIFICATION,ADAPTATION,HYBRIDIZATION,PLANTS,POLYPLOIDY,GENETIC-VARIATION,GENOME DUPLICATION,INVASION},
  language     = {eng},
  pages        = {62--69},
  title        = {Of dups and dinos : evolution at the K/Pg boundary},
  url          = {http://dx.doi.org/10.1016/j.pbi.2016.01.006},
  volume       = {30},
  year         = {2016},
}

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