Global Brassicaceae phylogeny based on filtering of 1,000-gene dataset

Autor(en): Hendriks, Kasper P.
Kiefer, Christiane
Al-Shehbaz, Ihsan A.
Bailey, C. Donovan
van Huysduynen, Alex Hooft
Nikolov, Lachezar A.
Nauheimer, Lars
Zuntini, Alexandre R.
German, Dmitry A.
Franzke, Andreas
Koch, Marcus A.
Lysak, Martin A.
Toro-Nunez, Oscar
Ozudogru, Baris
Invernon, Vanessa R.
Walden, Nora
Maurin, Olivier
Hay, Nikolai M.
Shushkov, Philip
Mandakova, Terezie
Schranz, M. Eric
Thulin, Mats
Windham, Michael D.
Resetnik, Ivana
Spaniel, Stanislav
Ly, Elfy
Pires, J. Chris
Harkess, Alex
Neuffer, Barbara 
Vogt, Robert
Brauchler, Christian
Rainer, Heimo
Janssens, Steven B.
Schmull, Michaela
Forrest, Alan
Guggisberg, Alessia
Zmarzty, Sue
Lepschi, Brendan J.
Scarlett, Neville
Stauffer, Fred W.
Schonberger, Ines
Heenan, Peter
Baker, William J.
Forest, Felix
Mummenhoff, Klaus 
Lens, Frederic
Stichwörter: ARABIDOPSIS; Biochemistry & Molecular Biology; BIOGEOGRAPHY; Biology; Cell Biology; DIPLOIDIZATION; DIVERSIFICATION; EVOLUTION; Life Sciences & Biomedicine - Other Topics; MOLECULAR SYSTEMATICS; MULTIPLE SEQUENCE ALIGNMENT; PENALIZED LIKELIHOOD; PLANT; TRANSITION
Erscheinungsdatum: 2023
Herausgeber: CELL PRESS
Journal: CURRENT BIOLOGY
Volumen: 33
Ausgabe: 19
Startseite: 4052+
Zusammenfassung: 
The mustard family (Brassicaceae) is a scientifically and economically important family, containing the model plant Arabidopsis thaliana and numerous crop species that feed billions worldwide. Despite its relevance, most phylogenetic trees of the family are incompletely sampled and often contain poorly supported branches. Here, we present the most complete Brassicaceae genus-level family phylogenies to date (Bras-sicaceae Tree of Life or BrassiToL) based on nuclear (1,081 genes, 319 of the 349 genera; 57 of the 58 tribes) and plastome (60 genes, 265 genera; all tribes) data. We found cytonuclear discordance between the two, which is likely a result of rampant hybridization among closely and more distantly related lineages. To eval-uate the impact of such hybridization on the nuclear phylogeny reconstruction, we performed five different gene sampling routines, which increasingly removed putatively paralog genes. Our cleaned subset of 297 genes revealed high support for the tribes, whereas support for the main lineages (supertribes) was moder-ate. Calibration based on the 20 most clock-like nuclear genes suggests a late Eocene to late Oligocene origin of the family. Finally, our results strongly support a recently published new family classification, dividing the family into two subfamilies (one with five supertribes), together representing 58 tribes. This includes five recently described or re-established tribes, including Arabidopsideae, a monogeneric tribe accommodating Arabidopsis without any close relatives. With a worldwide community of thousands of researchers working on Brassicaceae and its diverse members, our new genus-level family phylogeny will be an indispensable tool for studies on biodiversity and plant biology.
ISSN: 0960-9822
DOI: 10.1016/j.cub.2023.08.026

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