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Morphological revision and phylogenetic analysis of Stachys L. sect. Eriostomum (Hoffmanns. & Link) Dumort. (Lamiaceae) based on nuclear ribosomal internal transcribed spacer (nrITS) sequences were conducted. | Turkish Journal of Botany Turk J Bot (2013) 37: 14-23 © TÜBİTAK doi:10.3906/bot-1203-26 http://journals.tubitak.gov.tr/botany/ Research Article Phylogenetic analysis of the genus Stachys sect. Eriostomum (Lamiaceae) in Turkey based on nuclear ribosomal ITS sequences 1, 2 2 1 Ekrem DÜNDAR *, Ekrem AKÇİÇEK , Tuncay DİRMENCİ , Şakir AKGÜN Department of Biology, Faculty of Arts and Sciences, Balıkesir University, Balıkesir, Turkey 2 Department of Biology Education, Necatibey Faculty of Education, Balıkesir University, Balıkesir, Turkey 1 Received: 19.03.2012 Accepted: 12.08.2012 Published Online: 26.12.2012 Printed: 22.01.2013 Abstract: Morphological revision and phylogenetic analysis of Stachys L. sect. Eriostomum (Hoffmanns. & Link) Dumort. (Lamiaceae) based on nuclear ribosomal internal transcribed spacer (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 GermanicaeSpectabiles, 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 .
