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    New chromosome counts, karyotype analyses and asymmetry indices in some taxa of genus Senecio L. and related genera Tephroseris (Rchb.) Rchb. and Turanecio Hamzaoglu belong to tribe Senecioneae (Asteraceae) from Turkey
    (Springer Wien, 2014) Altinordu, Fahim; Martin, Esra; Hamzaoglu, Ergin; Cetin, Ozlem
    In this study, the somatic chromosome numbers and karyotype analyses were determined for nine taxa that belong to three different genera of Senecioneae tribe. The studied taxa are; Senecio tauricolus V.A. Matthews, Senecio racemosus (M.Bieb.) DC., Senecio paludosus L., Senecio trapezuntinus Boiss., Senecio inops Boiss. & Balansa subsp. inops, Turanecio pandurifolius (K.Koch) Hamzaoglu, Turanecio hypochionaeus (Boiss.) Hamzaoglu, Turanecio eriospermus (DC.) Hamzaoglu, Tephroseris integrifolia (L.) Holub. subsp. aurantiaca (Hoppe ex Willd.) B.Nord. S. tauricolus, S. trapezuntinus, S. inops subsp. inops and T. hypochionaeus taxa are endemic to Turkey. The chromosomal variability in the tribe Senecioneae has observed the existence of four chromosome numbers: 2n = 38, 2n = 40, 2n = 46 and 2n = 80. The chromosome number 2n = 38 is a new record for Turanecio species. All taxa existed karyotypes measured by a set of median to submedian chromosomes and a smaller number of subterminal chromosome pairs. Also their karyotype asymmetry indices (TF %, As K %, Syi, Rec, A, A(1) and A(2)) were calculated. The ideograms and detailed chromosome morphology measurements of the species were performed by the use of image analysis system (Bs200Pro). This is the first account of somatic chromosomes and karyotypes for the studied taxa except for S. paludosus. The research has contributed to the taxonomic revision of the tribe, Senecioneae, in Turkey.
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    New Karyotypes in Some Species of Asteraceae from Turkey
    (Univ Tokyo Cytologia, 2015) Martin, Esra; Cetin, Ozlem; Duran, Ahmet; Dogan, Bekir; Tras, Zeynep
    In this study, chromosome numbers and morphologies are presented for four species growing naturally in Turkey. These species are Inula peacockiana (Aitch. & Hemsl.) Korovin, Cousinia boissieri Buhse, Scorzonera renzii Rech. f., Lactuca intricata Boiss. Chromosome number of studied species are Inula peacockiana 2n=20, Cousinia boissieri 2n=26, Scorzonera renzii 2n=14 and Lactuca intricata 2n=18. Also, karyotype analyses were made using the Bs200Pro Image Analysis Software. In addition, the karyotype asymmetry of each taxa was evaluated by different methods; TF%, AsK%, Rec and Syi, A(1), A(2), A, AT and Stebbins classification. The correlation between the karyotype asymmetries of the different taxa was calculated.
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    New Karyotypes in Some Species of Asteraceae from Turkey
    (Univ Tokyo Cytologia, 2015) Martin, Esra; Cetin, Ozlem; Duran, Ahmet; Dogan, Bekir; Tras, Zeynep
    In this study, chromosome numbers and morphologies are presented for four species growing naturally in Turkey. These species are Inula peacockiana (Aitch. & Hemsl.) Korovin, Cousinia boissieri Buhse, Scorzonera renzii Rech. f., Lactuca intricata Boiss. Chromosome number of studied species are Inula peacockiana 2n=20, Cousinia boissieri 2n=26, Scorzonera renzii 2n=14 and Lactuca intricata 2n=18. Also, karyotype analyses were made using the Bs200Pro Image Analysis Software. In addition, the karyotype asymmetry of each taxa was evaluated by different methods; TF%, AsK%, Rec and Syi, A(1), A(2), A, AT and Stebbins classification. The correlation between the karyotype asymmetries of the different taxa was calculated.
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    Study of phylogenetic relationship of Turkish species of Klasea (Asteraceae) based on ISSR amplification
    (Pensoft Publishers, 2015) Dogan, Bekir; Duran, Ahmet; Seker, Meryem; Cetin, Ozlem; Martin, Esra
    Klasea is a taxonomically complex genus in which there are many problems, mostly with Klasea kotschyi and K. hakkiarica. It is challenging to differentiate the genera based on morphological characters alone. Revision studies performed on the basis of molecular data obtained from studies conducted in recent years have made the phylogenetic relationships and systematic positions of the taxa more apparent and reliable. In this study, Klasea, Serratula, Jurinea and Centaurea species native to Turkey, were collected from different localities of Anatolia and DNA was isolated from the collected samples. The data were analyzed ordination analyses including UPGMA and PCA using NTSYSpc 2.1. The infrageneric and intergeneric phylogenetic relationships between Klasea and other related genera were also characterized. The Klasea species were grouped into three clusters. It was determined that taxa Klasea kotschyi and K. hakkiarica are separate but closely related. Moreover, it was observed that the Klasea lasiocephala a separate group within the genera. Clearly the genera Klasea, Serratula, Jurinea and Centaurea are phylogenetically differentiated on the dendogram.