Variation in the karyotype of three cultivars of Narcissus tazetta L. (Amaryllidaceae) |
| |
Authors: | J L Karihaloo |
| |
Institution: | (1) Division of Ornamental Crops, Indian Institute of Horticultural Research, Hessaraghatta Lake, 560 089 Bangalore, India |
| |
Abstract: | Three cultivated varieties of Narcissus tazetta, Grand Soleil d'Or, Chinese Sacred Lily and Cypri, are triploid (2n = 3x+30) with the basic number 10. Grand Soleil d'Or has three homomorphic sets, each comprising 2 long submetacentrics, 4 long acrocentrics and 4 short acrocentrics. Karyotypes of the other two varieties are heteromorphic. Both possess one telocentric satellited chromosome. In addition, Cypri shows translocation between two chromosomes belonging to the seventh and eighth triplets. The number of secondary constrictions varies between 3 (Chinese Sacred Lily) and 4 (Grand Soleil d'Or and Cypri) which is also the number of nucleoli observed in the respective varieties. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|