Somatic karyotype and chromosome N-banding patterns of local Afghan wheats, Triticum aestivum L.

Abstract

The chromosome N-banding patterns, size and arm ratio were studied in nine Afghan local wheat accessions, Triticum aestivum L. - Ace 258, Acc 372, Ace 373, Acc 394, Ace 412, Acc 413, Acc 416, Acc 442 and Acc 539. Certain chromosome bands were missing in comparison with the standard banded karyotype of ‘Chinese Spring’. Specific additional N-positive bands were established for some of the accessions. The variation was most significant for chromosome 3B. The lower intensity of the band 2 ALL3 or its lack, both of the telomeric and sub-telomeric bands in the long arm of 3BL, and the lower number of bands in the short arm of 3B are typical features of the most of the accessions.