Phylogenetic analysis of the genus Stachys sect. Eriostomum (Lamiaceae) in Turkey based on nuclear ribosomal ITS sequences

Authors : Ekrem DÜNDAR, Ekrem AKÇİÇEK, Tuncay DİRMENCİ, Şakir AKGÜN

Pages : 14-23

Doi:10.3906/bot-1203-26

View : 22 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Morphological revision and phylogenetic analysis of Stachys L. sect. Eriostomum insert ignore into journalissuearticles values(Hoffmanns. & Link); Dumort. insert ignore into journalissuearticles values(Lamiaceae); based on nuclear ribosomal internal transcribed spacer insert ignore into journalissuearticles values(nrITS); sequences were conducted. Morphological analysis confirmed the previous arrangements of 3 subsections, i.e. Germanicae R.Bhattacharjee, Creticae R.Bhattacharjee, and Spectabiles R.Bhattacharjee, while suggesting some status changes and new records that were also confirmed by the phylogenetic analysis. The phylogenetic analysis suggested, however, some arrangements different from those indicated by morphology. Two subsections, i.e. Creticae and Germanicae-Spectabiles, instead of 3 were observed in the phylogenetic tree. The tree also suggested that 9 Stachys cretica L. subspecies form a polyphyletic rather than a monophyletic group. While at least 2 clades were clearly identified in the subsection Creticae, no meaningful clades in the subsection Germanicae-Spectabiles were detected in the tree. Flower colour and altitude were not represented by any difference in nrITS DNA sequence of the taxa examined, while 2 distant populations of Stachys spectabilis Choisy ex DC. differed in that respect. A potentially new species of Stachys was observed in the tree. The tree clearly displayed the monophyly of Eriostomum, while confirming the recently suggested new status insert ignore into journalissuearticles values(as a genus); of the subgenus Betonica insert ignore into journalissuearticles values(L.); R.Bhattacharjee.
Keywords : Key words Eriostomum, nrITS phylogeny, Lamiaceae, phylogenetic analysis