Contribution to the taxonomy of little known Tragopogon species endemic to Turkey


GÜLTEPE M., ÇOŞKUNÇELEBİ K., MAKBUL S. , Guzel M. E.

NORDIC JOURNAL OF BOTANY, vol.39, no.7, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 39 Issue: 7
  • Publication Date: 2021
  • Doi Number: 10.1111/njb.03242
  • Title of Journal : NORDIC JOURNAL OF BOTANY
  • Keywords: Cichorieae, cpDNA, lectotype, nrDNA, taxonomy, SP-NOV ASTERACEAE, L. ASTERACEAE, TRANSCRIBED SPACER, BREMER SUPPORT, TAXA, CICHORIEAE, PHYLOGENY, HIERACIUM, ANATOLIA

Abstract

In the present paper, two little-known species (T. olympicus Boiss. and T. pichleri Boiss.) endemic to Turkey are evaluated in terms of morphology based on numerous authentic and/or new collections. Additionally, the phylogenetic positions of these little-known species are evaluated based on newly generated sequences of nrDNA ITS, trnL and trnL-F. As a result of the morphological examination, lectotypes are designated and documented for both species together with amended diagnosis. The phylogenetic analysis of the ITS data indicates that T. olympicus and T. latifolius Boiss. var. angustifolius are sister taxa, while T. dubius Scop. and T. pichleri are nested together in a different subclade of Tragopogon sect. Majores (Artemcz.) Kuthath s.l. However, neither species is resolved in the cpDNA tree due to low nucleotide diversity. The present results support treating T. olympicus and T. pichleri as members of Tragopogon sect. Sosnovskya Boriss. and Tragopogon sect. Majores, respectively.