DESCRIPTIVE AND EXPERIMENTAL CYTOLOGY IN <i>ALLIUM</i>

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  • KATO Yukio
    Biological Institute, Faculty of Science, Nagoya University

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  • III. DEFICIENCY OF SATELLITES IN THE NUCLEOLAR CHROMOSOMES

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説明

1. The satellite of the nucleolar chromosome of Allium istulosum is sometimeseliminated. The variety “Wakeginebuka” is heterozygous for deficiency of satellites (SS-) and some plants of the variety “Kujonegi” homozygous (S-S-)<br>2. The meiosis, mitosis, and some characters of the variants and its progenies were studied.<br>3. The elimination of the satellite may occur through mitotic processes.<br>4. In the root-tip cells of one exceptional plants (SS-), two different karyotypes were found in a chimeral state.<br>5. The effects of pyrogallol on mitosis were reinvestigated by the use of SS- karyotyped plants.

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