A nuclear phylogenomic study of the angiosperm order Myrtales, exploring the potential and limitations of the universal Angiosperms353 probe set

Maurin, O. and Anest, A. and Bellot, S. and Biffin, E. and Brewer, G. and Charles-Dominique, T. and Cowan, R.S. and Dodsworth, Steven and Epitawalage, N. and Gallego, B. and Giaretta, A. and Goldenberg, R. and Gonçalves, D.J.P. and Graham, S. and Hoch, P. and Mazine, F. and Wen Low, Y. and McGinnie, C. and Michelangeli, F.A. and Morris, S. and Penneys, D.S. and Pérez Escobar, O.A. and Pillon, Y. and Pokorny, L. and Shimizu, G. and Staggemeier, V.G. and Thornhill, A.H. and Tomlinson, K.W. and Turner, I.M. and Vasconcelos, T. and Wilson, P.G. and Zuntini, A.R. and Baker, W.J. and Forest, F. and Lucas, E. (2021) A nuclear phylogenomic study of the angiosperm order Myrtales, exploring the potential and limitations of the universal Angiosperms353 probe set. American Journal of Botany 108 (7), pp. 1087-1111. ISSN 0002-9122.

Abstract

Premise: To further advance the understanding of the species-rich, economically and ecologically important angiosperm order Myrtales in the rosid clade, comprising nine families, approximately 400 genera and almost 14,000 species occurring on all continents (except Antarctica), we tested the Angiosperms353 probe kit. Methods: We combined high-throughput sequencing and target enrichment with the Angiosperms353 probe kit to evaluate a sample of 485 species across 305 genera (76 of all genera in the order). Results: Results provide the most comprehensive phylogenetic hypothesis for the order to date. Relationships at all ranks, such as the relationship of the early-diverging families, often reflect previous studies, but gene conflict is evident, and relationships previously found to be uncertain often remain so. Technical considerations for processing HTS data are also discussed. Conclusions: High-throughput sequencing and the Angiosperms353 probe kit are powerful tools for phylogenomic analysis, but better understanding of the genetic data available is required to identify genes and gene trees that account for likely incomplete lineage sorting and/or hybridization events.

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