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KMID : 0613820070170060762
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Journal of Life Science
2007 Volume.17 No. 6 p.762 ~ p.765
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Heterochromatic Knob Number And Karyotype in Korean Indigenous Waxy Corn by Giemsa C-banding Pattern of Mitotic Chromosome
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Lee In-Sub
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Abstract
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A Giemsa C-banding method was used for the identification of somatic chromosomes and heterochromatic knob position in Korean indigenous waxy corn (Zea mays L.). 5 inbred stocks were examined and their heterochromatic knob numbers ranged from 6 to 12. In comparison of homologous chromosomes of two stocks of YS-1 and MY-1, knob numbers, knob positions, arm ratios and relative length of chromosomes were different between the genotypes. The length of homologous chromosomes in YS-1 were generally larger than those of MY-1. The Giemsa method was proved to be useful for the identification of somatic chromosome and a C-banded diagram showing knob positions, arm ratios and relative length of chromosome could be used as a good tool to compare the characteristics of chromosomes of Korean indigenous waxy corn stocks.
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KEYWORD
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Giemsa C-banding, Heterochromatic knob, Indigenous waxy corn
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