Sinoseris (Crepidinae, Cichorieae, Asteraceae), a new genus of three species endemic to China, one of them new to science

Abstract

Sinoseris (Crepidinae, Cichorieae, Asteraceae), a new genus of three species endemic to China, one of them new to science Version of record first published online on 12 March 2020 ahead of inclusion in April 2020 issue.

Mojiangia oreophila (Crepidinae, Cichorieae, Asteraceae), a new species and genus from Mojiang County, SW Yunnan, China, and putative successor of the maternal Faberia ancestor

“…The Cichorium pollen type present in Mojiangia is the most common in the entire tribe Cichorieae ( Blackmore, 1986 ) and its subtypes occur scattered across several subtribes with no correlation to their systematics ( Blackmore, 1984 ; Blackmore and Persson, 1996 ; Wang et al., 2009 ). The Mojiangia pollen is of the subtype with a small polar area and only 1–4 isolated central echinae, the occurrence of which is also inconsistent with generic boundaries, e.g., in the cases of Youngia and Sinoseris , where the subtype with an extended polar area is also present ( Peng et al., 2013 ; Wang et al, 2020 ).…”

“…Molecular phylogenetic analyses were carried out using four individuals of the possible new species from its only known population. DNA was extracted, and the nuclear ribosomal internal transcribed spacer (nrITS) region and three plastid DNA markers ( trnL-F , psbA-trnH , matK ) were amplified and sequenced as described by Wang et al (2020) . Sequences were aligned into somewhat extended versions of the Crepidinae backbone matrices for nrITS and plastid DNA used by Wang et al (2020) and the same indel coding and partitioning was applied.…”

“…DNA was extracted, and the nuclear ribosomal internal transcribed spacer (nrITS) region and three plastid DNA markers ( trnL-F , psbA-trnH , matK ) were amplified and sequenced as described by Wang et al (2020) . Sequences were aligned into somewhat extended versions of the Crepidinae backbone matrices for nrITS and plastid DNA used by Wang et al (2020) and the same indel coding and partitioning was applied. The GenBank accession numbers of the newly generated sequences are given in Table 1 ; those of the published sequences included in the matrices follow the taxon name in the phylogenetic trees ( Fig.…”

“…3 ). Phylogenetic relationships were inferred with maximum parsimony (MP), maximum likelihood (ML) and Bayesian inference (BI) on the high-performance computing system of the Freie Universität Berlin ( Bennett et al., 2020 ), using the same software as described by Wang et al (2020) : PRAP v.2.0 ( Müller, 2004 ) and PAUP v.4.0b10 ( Swofford, 2003 ) for MP, ModelTest-NG ( Darriba et al., 2019 ) and RAxML-NG 0.9.0 ( Kozlov et al., 2019 ) for ML, and MrBayes ( Ronquist et al., 2012 ) for BI, SeqState ( Müller, 2005 ) for indel coding, and TreeGraph v.2 ( Stöver and Müller, 2010 ) for displaying the trees with statistical node support, and also applying the same parameters.…”

Youngia hangii (Asteraceae, Crepidinae), a new species from Hubei, China

“…with the inclusion of subtribe Ixeridinae Sennikov (Kilian et al 2009;Zhang et al 2011;Tremetsberger et al 2012). Then, the results of some investigations (Urbatsch et al 2013;Liu et al 2013;Peng et al 2014) and the most comprehensive Crepidinae phylogeny (Wang et al 2020) supported close relationships between Youngia and Crepidiastrum being sister groups to each other, but they are phylogenetically distant to Ixeris, Ixeridium and Askellia, and Youngia is polyphyletic. However, the circumscription of sections in Youngia, so far, still lacks molecular evidence (Babcock and Stebbins 1937;Shih 1997;Peng et al 2014).…”