J Integr Plant Biol. ›› 1995, Vol. 37 ›› Issue (2): -.

• Research Articles •    

Karyotype and Sex Chromosomes in Cephalotaxus sinensis

Chen Ke-yong   

Abstract: In Cephalotascus sinensis (Rehd. et Wils. ) Li the somatic chromosome number was found to be of 2n=24. Eleven pairs of chromosomes possessed their centromeres at median or median-submedian regions. The shortest pair of chromosomes was the SAT chromosome which possessed their centromeres at the submedian regions. The sex chromosomes were demonstrated by the Giemsa C-banding technique. The sexual determination mechanism of female was WZ type (2n=24=22A+WZ), and that of male was ZZ type (2n=24=22A +ZZ).

Key words: Cephalotaxus sinensis, Chromosome, Sex chromosome

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