Abstract
The karyotype of Phthorimaea operculella is similar in both sexes and consists of 29 chromosome pairs. These are of similar size with gradual intergradation except for one pair which is significantly longer. C-banding and fluorescent staining with quinacrine and Hoechst 33258 failed to induce bands in metaphase chromosomes while silver staining clearly showed active nucleoli in all stages except metaphase. The banding results are compared with the few reports available on banding of holocentric chromosomes. It is concluded that considerable variability exists in the heterochromatic structure of holocentric chromosomes.Key words: Lepidoptera, moth, karyotype, C-banding.
Publisher
Canadian Science Publishing
Subject
Cell Biology,Plant Science,Genetics
Cited by
17 articles.
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