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1.
  • Zuntini, Alexandre R., et al. (author)
  • Phylogenomics and the rise of the angiosperms
  • 2024
  • In: NATURE. - 0028-0836 .- 1476-4687. ; 629, s. 843-850
  • Journal article (peer-reviewed)abstract
    • Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods(1,2). A robust understanding of angiosperm evolution is required to explain their rise to ecological dominance. So far, the angiosperm tree of life has been determined primarily by means of analyses of the plastid genome(3,4). Many studies have drawn on this foundational work, such as classification and first insights into angiosperm diversification since their Mesozoic origins(5-7). However, the limited and biased sampling of both taxa and genomes undermines confidence in the tree and its implications. Here, we build the tree of life for almost 8,000 (about 60%) angiosperm genera using a standardized set of 353 nuclear genes(8). This 15-fold increase in genus-level sampling relative to comparable nuclear studies(9) provides a critical test of earlier results and brings notable change to key groups, especially in rosids, while substantiating many previously predicted relationships. Scaling this tree to time using 200 fossils, we discovered that early angiosperm evolution was characterized by high gene tree conflict and explosive diversification, giving rise to more than 80% of extant angiosperm orders. Steady diversification ensued through the remaining Mesozoic Era until rates resurged in the Cenozoic Era, concurrent with decreasing global temperatures and tightly linked with gene tree conflict. Taken together, our extensive sampling combined with advanced phylogenomic methods shows the deep history and full complexity in the evolution of a megadiverse clade.
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2.
  • Edger, Patrick P., et al. (author)
  • The butterfly plant arms-race escalated by gene and genome duplications
  • 2015
  • In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 112:27, s. 8362-8366
  • Journal article (peer-reviewed)abstract
    • Coevolutionary interactions are thought to have spurred the evolution of key innovations and driven the diversification of much of life on Earth. However, the genetic and evolutionary basis of the innovations that facilitate such interactions remains poorly understood. We examined the coevolutionary interactions between plants (Brassicales) and butterflies (Pieridae), and uncovered evidence for an escalating evolutionary arms-race. Although gradual changes in trait complexity appear to have been facilitated by allelic turnover, key innovations are associated with gene and genome duplications. Furthermore, we show that the origins of both chemical defenses and of molecular counter adaptations were associated with shifts in diversification rates during the arms-race. These findings provide an important connection between the origins of biodiversity, coevolution, and the role of gene and genome duplications as a substrate for novel traits.
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Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Antonelli, Alexandre ... (1)
Wahlberg, Niklas (1)
Liu, Jing-Xia (1)
Vogel, Heiko (1)
Wheat, Christopher W ... (1)
Bayer, Randall J. (1)
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Sauquet, Hervé (1)
Hackel, Jan (1)
Baker, William J. (1)
Cable, Stuart (1)
Forest, Felix (1)
Grace, Olwen M. (1)
Perez-Escobar, Oscar ... (1)
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Vorontsova, Maria S. (1)
Clarkson, James J. (1)
Kainulainen, Kent (1)
Maurin, Olivier (1)
Brewer, Grace E. (1)
Davis, Aaron P. (1)
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Goyder, David J. (1)
Livshultz, Tatyana (1)
Persson, Claes, 1960 (1)
Pokorny, Lisa (1)
Straub, Shannon C.K. (1)
Struwe, Lena (1)
Zuntini, Alexandre R ... (1)
Csiba, Laszlo (1)
Appelhans, Marc S. (1)
Callmander, Martin W ... (1)
Davidse, Gerrit (1)
Kato, Masahiro (1)
Koch, Marcus A. (1)
Chase, Mark W. (1)
Liede-Schumann, Sigr ... (1)
Graham, Sean W. (1)
dePamphilis, Claude ... (1)
Eiserhardt, Wolf L. (1)
Galbany-Casals, Merc ... (1)
Soltis, Pamela S. (1)
Wright, Stephen I. (1)
Zmarzty, Sue (1)
Stevens, Peter F. (1)
Fay, Michael F. (1)
Kellogg, Elizabeth A ... (1)
Briggs, Marie (1)
Utteridge, Timothy M ... (1)
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University of Gothenburg (1)
Stockholm University (1)
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Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)
Medical and Health Sciences (1)
Agricultural Sciences (1)

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