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    Karyological studies of five taxa of Sideritis L. (Lamiaceae) section Hesiodia Benth. from Turkey
    (UNIV FLORENCE BOTANY INST, 2008) Esra, Martin; Duman, Hayri; Unal, Fatma
    The number and size of the chromosomes in the Sideritis L. genus which belongs to Hesiodia (Benth.) section were studied using the Image Analysis System. Chromosome number was determinated as 2n=30+0-2B in S. lanata L., 2n=28+0-3B in S. romana L. subsp. romana, 2n=28+0-4B in S. curvidens Stapf., 2n=16+0-2B in S. montana L. subsp. montana and 2n=18+0-3B in S. montana L. subsp. remota (d'Urv.) P.W.Ball ex Heywood. The chromosome lengths in these taxa were found to vary from 0.37 mu m to 1.33 mu m.
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    Karyomorphological studies on section Bucerates Boiss. of Trigonella L. (Leguminosae) from Turkey
    (TAYLOR & FRANCIS LTD, 2008) Esra, Martin; Akan, Hasan; Ekici, Murat; Aytac, Zeki
    The Karyomorphology of all taxa of section Bucerates Boiss. genus Trigonella L. (Leguminosae) were made using Image Analysis System. The chromosome numbers of 14 taxa of Trigonella (2n = 16), T. fischeriana Ser. and T. monantha C.A.Meyer subsp. noeana (Boiss.) Hub.-Mor. (2n = 14), T. monantha C.A.Meyer subsp. monantha Verz. (2n = 16, 28, 30) and T. orthoceras Kar. & Kir. (2n = 16, 46) were counted. B chromosomes were observed on T. arcuata C.A.Meyer. and there were two chromosomes with a satellite in T. crassipes Boiss. In the section Bucerates, 12 taxa of Trigonella showed tetraploidy, with 2n = 32 and two taxa of Trigonella had hexaploidy (2n = 48). The range of chromosome length ranged from 3.26 mu m to 0.56 mu m. Whereas T. orthoceras had the longest chromosome length, T. monantha subsp. monantha had shortest.