Open Access Open Access  Restricted Access Subscription Access

Cytological Studies in the Genus Amaryllis


Affiliations
1 Sivanath Sastri College, Calcutta, India
 

One species and eight horticultural varieties of Amaryllis show a basic number of x=11, which is the predominant basic number of the family. In both Amaryllis belladonna and Amaryllis-Mrs. Garfield the normal somatic number is 2n=22. All the seven colour varieties of Amaryllis-Giant Dutch have 2n=44 chromosomes. These varieties differ from one another in the minor alterations of the chromosome types suggesting the role of minor structural alterations in evolution. In addition to the normal somatic complement a number of variant nuclei with altered karyotypes have been recorded.
User
Notifications
Font Size

Abstract Views: 53

PDF Views: 15




  • Cytological Studies in the Genus Amaryllis

Abstract Views: 53  |  PDF Views: 15

Authors

Suhita Guha
Sivanath Sastri College, Calcutta, India

Abstract


One species and eight horticultural varieties of Amaryllis show a basic number of x=11, which is the predominant basic number of the family. In both Amaryllis belladonna and Amaryllis-Mrs. Garfield the normal somatic number is 2n=22. All the seven colour varieties of Amaryllis-Giant Dutch have 2n=44 chromosomes. These varieties differ from one another in the minor alterations of the chromosome types suggesting the role of minor structural alterations in evolution. In addition to the normal somatic complement a number of variant nuclei with altered karyotypes have been recorded.