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Original Articles Open Access
Chromosome stickiness was reported in several plant species and is characterized by sticky clumps of chromatin resulting in sterility. In the present study, sticky behaviour induced by different concentration 10 ppm, 40 ppm, and 80 ppm of mercury on Tritium aestivum. In the meiocytes clumped chromosome masses that did not orient themselves to equatorial plate cause unequal chromosomal distribution were observed. Chromosome form sticky clumps fail to separate at anaphase I and II leads to disturbed cytokinesis. Stickiness found in every stage of meiotic cycle during study following asynchronous division, Chromosome bridges of different thickness were also observed in different stages of meiosis. Regards and precocious movements were also prevalent in the study. Moderate amount of pollen sterility reported in the study. This finding can be helpful in a breeding program.
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Author(s): Preeti Rai and Sangeeta Dayal
Mercury, Genotoxic, Meiocytes, Stickiness, Parts per million (ppm), meiosis