Resolution of the ordinal phylogeny of mosses using targeted exons from organellar and nuclear genomes

Yang Liu, Matthew G. Johnson, Cymon J. Cox, Rafael Medina, Nicolas Devos, Alain Vanderpoorten, Lars Hedenäs, Neil E. Bell, James R. Shevock, Blanka Aguero, Dietmar Quandt, Norman J. Wickett, A. Jonathan Shaw and Bernard Goffinet ()
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Yang Liu: Fairy Lake Botanical Garden & Chinese Academy of Sciences
Matthew G. Johnson: Texas Tech University
Cymon J. Cox: Universidade do Algarve, Gambelas
Rafael Medina: Augustana College
Nicolas Devos: Duke University
Alain Vanderpoorten: University of Liège
Lars Hedenäs: Swedish Museum of Natural History
Neil E. Bell: Royal Botanic Garden Edinburgh
James R. Shevock: California Academy of Sciences
Blanka Aguero: Duke University
Dietmar Quandt: University of Bonn
Norman J. Wickett: Chicago Botanic Garden
A. Jonathan Shaw: Duke University
Bernard Goffinet: University of Connecticut

Nature Communications, 2019, vol. 10, issue 1, 1-11

Abstract: Abstract Mosses are a highly diverse lineage of land plants, whose diversification, spanning at least 400 million years, remains phylogenetically ambiguous due to the lack of fossils, massive early extinctions, late radiations, limited morphological variation, and conflicting signal among previously used markers. Here, we present phylogenetic reconstructions based on complete organellar exomes and a comparable set of nuclear genes for this major lineage of land plants. Our analysis of 142 species representing 29 of the 30 moss orders reveals that relative average rates of non-synonymous substitutions in nuclear versus plastid genes are much higher in mosses than in seed plants, consistent with the emerging concept of evolutionary dynamism in mosses. Our results highlight the evolutionary significance of taxa with reduced morphologies, shed light on the relative tempo and mechanisms underlying major cladogenic events, and suggest hypotheses for the relationships and delineation of moss orders.

Date: 2019
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DOI: 10.1038/s41467-019-09454-w

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