Plant Systematics and Evolution

, Volume 300, Issue 1, pp 163–175 | Cite as

Comparative molecular phylogenetics of Astragalus L. sections from Turkey with New World Astragalus species using nrDNA ITS sequences

  • Ayten Dizkirici
  • Murat Ekici
  • Zeki KayaEmail author
Original Article


Comparative molecular phylogenetic study using nrDNA internal transcribed spacer region (ITS) sequences was carried out on species from three Astragalus L. (Fabaceae) sections from Turkey (Old World species) and the New World. A total of 56 taxa (179 accessions) including 30 species from Incani DC., 15 species from Hypoglottidei DC. and 11 species from Dissitiflori DC. section were used in the current study. The total length of the ITS region was 642 bp with 56 (8.7 %) parsimony-informative and 9 insertion\deletion sites. The constructed phylogenetic tree suggested that the section Incani had the most conserved ITS region among the studied Astragalus sections, evolutionarily separated from other sections and monophyletic. Also, DNA sequences of several New World (Neo-) Astragalus species analyzed comparatively with those from the current study indicated that New World aneuploid species of Astragalus clearly formed a monophyletic group separated from the species of the Old World.


Astragalus ITS Evolutionary divergence Nucleotide diversity Molecular phylogeny Fabaceae 



This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK), Ankara, Turkey (Project number: TBAG-106T284).


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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  1. 1.Department of Biological SciencesMiddle East Technical UniversityAnkaraTurkey
  2. 2.Department of BiologyYuzuncu Yil UniversityVanTurkey
  3. 3.Department of Biology, Faculty of Arts and SciencesGazi UniversityAnkaraTurkey

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