Format: ORAL

Christoph Oberprieler1, Nadine Benda1, Alisha Tpfer1, Marco Dorfner1, Miriam Stock1 Robert Vogt2

1 University of Regensburg, Regensburg, Germany 2 Freie Universität Berlin, Berlin, Germany

An updated subtribal classification of the Compositae-Anthemideae is presented based on gene- and species-tree reconstructions considering sequence variation from the plastid (cpDNA ndhF, trnL-trnF) and nuclear genome (nrDNA ITS1-5.8S-ITS2, ETS; nDNA dual specificity phosphatase DSP, plus-3 domain-containing protein of the vernalization independence 5 complex VIP5, major facilitator superfamily protein of the Nitrate Transporter1/Peptide Transporter NPF3.1) for 113 of the 115 hitherto accepted genera of the tribe. As a result, six subtribes were newly circumscribed [i.e., Anthemidinae (including also Xylanthemum), Artemisiinae (including also Hulteniella, Lepidolopha, Opisthopappus, and Tridactylina), Glebionidinae (including also Otoglyphis, Endopappus, and Nivellea), Handeliinae (including Cancrinia, Polychrysum, and excluding Xylanthemum), Leucantheminae (including also Daveaua, Heteromera, and Otospermum), Leucanthemopsidinae (including Phalacrocarpum)]. Additionally, five unigeneric subtribes (i.e., Brocchiinae, Inulantherinae, Lepidophorinae, Lonadinae, Vogtiinae) were described as new to science due to their phylogenetically isolated positions, resulting in 18 subtribes accepted presently for Compositae-Anthemideae. A focal subtribe of a more detailed phylogenetic analysis is based on the W Mediterranean genus Vogtia Oberpr. & Sonboli that comprises two species, i.e. V. annua (L.) Oberpr. & Sonboli and V. microphylla (DC.) Oberpr. & Sonboli. To infer the phylogenetic position of this subtribe the complete chloroplast genomes of the two species and seven other representatives of additional subtribes of the Anthemideae were sequenced using long-range PCR and Oxford Nanopore technology (MinION) and subjected to maximum-likelihood tree reconstructions. The phylogenetic analysis confirmed the placement of Vogtiinae as sister to subtribes Anthemidinae+Matricariinae. Results of additional analyses concerning the phylogenetic relationships and the subtribal status of the monogeneric orphan genera Brocchia, Lepidophorum, and Lonas will be also presented.