Karyomorphological studies in the genus Catharanthus
Keywords:
Catharanthus pusillus, Catharanthus rosvus, chromosome, karyotype
Abstract
Karyomorphological studies of Catharanthus pusillus and six varieties of Catharanthus roseus (L.) G. Don showed same diploid chromosome number i.e. 2n = 2x = 16. There was uniformity in the chromosome complement in all the types investigated. Based on total chromatin length feature, C. pusillus and white with red eye flowered variety of C. roseus revealed to be primitive and advanced respectively. Overall, white flowered variety of C. roseus was considered most advanced on account of its lower Symmetry Index percent value, Total Form percentage and Form percent value.
Published
2011-02-25
Section
Research Article
Copyright (c) 2011 Indian Journal of Genetics and Plant Breeding
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