Karyomorphological studies on section Bucerates Boiss. of Trigonella L. (Leguminosae) from Turkey

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.