Karyological study on endemic Astragalus stereocalyx Bornm. (Milk-vetch) in Turkey
نویسندگان
چکیده
Chromosome number and karyotype of Astragalus stereocalyx Bornm. (Milk-vetch) in the section Stereocalyx Bornm. distributing naturally in Turkey were analyzed in detail. This species is endemic to Turkey and growing in Eskişehir and Konya provinces. Squash preparation method was used for chromosome study in this species. The somatic chromosome number was determined as 2n = 16 in A. stereocalyx. The basic chromosome number was observed as x = 8. The chromosome number and morphology of A. stereocalyx belonging to the genus Astragalus was investigated using Image Analysis System. The karyotype formula of this species consists of three median chromosome pairs and five submedian chromosome pairs. The somatic chromosome length between 1.07-2.23 μm. Total haploid chromosomes length was measured as 11.73 μm. The karyogram and ideogram were drawn based on centromeric index and arranged in the decreasing size order.
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