J Integr Plant Biol. ›› 1987, Vol. 29 ›› Issue (2): -.

• Research Articles •    

Studies on the Karyotypes and C-Banding Patterns of Chinese Kale (Brassica alboglabra ) and Cabbage ( B. oleraca var.eapitata)

Wang Xiao-hui and Luo Feng   

Abstract: The karyotypes of B. alboglabra and B. oleracea var. capitata were analyzed by an improved technique. The diploids of the two species consist of 4 pairs of metacentric and 5 pairs of submetacentric chromosomes (1 pair of satellites). The karyotype formula is summarized as 2n =18=8m+10sm (2 SAT). But the relative positions of some similar chromosomes are different in the genomes. Four kinds of satellites were observed in B. oleracea var. capitata. C-banding patterns were obtained by BSG C-banding. The C-banding formula is: 2n= 18=CITS pattern = 10C+2CI+ +4CT+ +2CS for B. alboglabra, and 2n= 18=CITS pattern = 8C+2CI +6CT+ + 2CS for B. oleracea var. capitata. The relationship between B. alboglabra and B. oleracea was discussed based on the chromosomal characteristics.

Key words: Brassica, Chinese kale, cabbage karyotype, C-bands

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