CYTOLOGIA
Online ISSN : 1348-7019
Print ISSN : 0011-4545
C-Banding of Meiotic Chromosomes in Male Grasshopper, Poekilocerus pictus Fabr
Ejaz AskariAhsan A. Vahidy
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1990 年 55 巻 4 号 p. 543-546

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Testicular cells of grasshopper, Poekilocerus pictus Fabr., were subjected to standard C-banding procedure. Number of bands per genome during pachytene, diplotene and diakinesis varied from 15-20. Chromosomes were well spread and countable at metaphase-I and anaphase-I; however, no C-bands were observed at these stages, which might be due to high condensation of chromosomes. The 2n number was found to be 19, (9II+X) and the sex determining mechanism to be of XO type. The mean chiasma frequency per cell was 16.40±0.41 at metaphase-I.

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© The Japan Mendel Society
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