J Syst Evol ›› 2012, Vol. 50 ›› Issue (1): 58-63.DOI: 10.1111/j.1759-6831.2011.00170.x

• Research Articles • Previous Articles     Next Articles

Karyomorphology of six taxa in Chrysanthemum sensu lato (Anthemideae) in Egypt and their genetical relationships by Giemsa C-banding

Magdy Hussein ABD EL-TWAB* Ahmad Mohammad M. MEKAWY   Mohammad Saad EL-KATATNY   

  1. (Department of Botany and Microbiology, Faculty of Science, Minia University, El-Minia City 61519, Egypt)
  • Received:2011-08-29 Published:2012-02-03

Abstract: Giemsa C-banding was applied to the chromosome complements of six diploid species belonging to six genera in Chrysanthemum sensu lato (Anthemideae) distributed in Egypt. Four types of C-banding distribution were observed in the taxa as follows: (i) negative C-banding in Anacyclus monanthos (L.) Thell.; (ii) all bands in terminal regions in Achillea fragrantissima (Forssk.) Sch. Bip, which showed 32 bands on 18 chromosomes; (iii) all eight bands at centromeric regions on eight chromosomes in Matricaria recutita L.; and (iv) bands at terminal and centromeric regions in Brocchia cinerea Vis. (12 terminal and six centromeric bands on 12 chromosomes), Cotula barbata DC. (four terminal, six centromeric, and eight short arm bands on 16 chromosomes), and Glebionis coronaria (L.) Cass. ex Spach. (eight terminal on the short arms and four large bands in centromeric regions on 12 chromosomes).

Key words: Anthemideae, C-banding, Chrysanthemum, Egypt.